BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:I16293E revisited (D2H+) DTSTART;VALUE=DATE-TIME:20230111T082000Z DTEND;VALUE=DATE-TIME:20230111T084000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-42@cern.ch DESCRIPTION:Speakers: PAGANI\, Laurent ()\nIRAS16293E is a very dense pres tellar core (PSC). The nearby multi-Class 0 group projects one of its outf lows against the edge of the PSC\, heating superficially the material. The resulting brightness peak which has attracted a lot of attention is in fa ct not representative of the PSC. The real PSC core is only revealed by tw o cations : H2D+ and D2H+. The recent map of the later with APEX nicely re veals the chemical evolution of the core which seems hardly perturbed by t he outflow impact. This is the first D2H+ map ever observed.\n\nhttps://ev ents.mpifr-bonn.mpg.de/indico/event/295/contribution/42 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/42 END:VEVENT BEGIN:VEVENT SUMMARY:A sensitive CO(1-0)\, CO(2-1)\, CO(3-2)\, and [CI](1-0) spectral s urvey of 40 local (U)LIRGs DTSTART;VALUE=DATE-TIME:20230110T084000Z DTEND;VALUE=DATE-TIME:20230110T090000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-22@cern.ch DESCRIPTION:Speakers: CICONE\, Claudia ()\nI will present our recent high sensitivity\, ground-based spectral line survey of low-J CO and neutral Ca rbon [CI](1-0) emission lines in 40 local (ultra) luminous infrared galaxi es ((U)LIRGs)\, all with previous Herschel OH119 observations. The study i s based on our APEX PI observations of CO(2-1)\, CO(3-2) and [CI](1-0)\, c omplemented by archival APEX\, ALMA\, and ACA data. Our methods are optimi sed for a multi-tracer study of the total molecular line emission from the se (U)LIRGs\, including any extended low-surface brightness components. We find a nearly linear correlation between the CO and [CI] line luminositie s suggesting that the emission from CO(1-0) (and CO(2-1)) arise from simil ar regions as the [CI](1-0)\, at least when averaged over galactic scales. By combining both molecular gas mass tracers\, we measure a median CO-to- H2 conversion factor of 1.7 +- 0.4 MSun/(K km/s pc^2). We derive median ga laxy-integrated CO line ratios of r_21 =1.05+-0.03\, r_31 =0.76 +- 0.02\, r_{32} =0.76 +- 0.02\, significantly higher than normal star forming galax ies\, confirming the exceptional molecular gas properties of (U)LIRGs. We find that such low-J CO line ratios\, including r_31\, are very poor trace rs of CO excitation in (U)LIRGs. Higher r_21 values are measured in line c omponents with higher velocity dispersions\, likely due to CO opacity effe cts. These (U)LIRGs are also characterised by high [CI]/CO(1-0) line lumin osity ratios\, with a measured median value of r_CICO =0.180 +- 0.011. The r_CICO values do not show significant correlation with any of the galaxy properties investigated. However\, the correlation between [CI](1-0) and A GN luminosity\, more significant than that observed for CO lines\, and the discovery that [CI](1-0) is on average narrower than CO\, suggest that CO and [CI] may behave differently as H_2 tracers in high luminosity AGNs an d broad line sources. Finally\, we find that higher AGN luminosities are a ssociated to longer molecular gas depletion timescales\, consistent with t he hypothesis that AGN feedback may reduce the efficiency of star formatio n. Our study highlights the necessity of sensitive ground-based single-dis h multi-tracer H_2 surveys of local (U)LIRGs to understand the mechanisms at work during accelerated phases of galaxy evolution. The Atacama Large A perture Submillimeter Telescope (AtLAST) will be transformational for this field.\n\nhttps://events.mpifr-bonn.mpg.de/indico/event/295/contribution/ 22 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/22 END:VEVENT BEGIN:VEVENT SUMMARY:SOFIA upGREAT [C II] spectroscopic imaging of Sgr A DTSTART;VALUE=DATE-TIME:20230110T112000Z DTEND;VALUE=DATE-TIME:20230110T114000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-29@cern.ch DESCRIPTION:Speakers: HARRIS\, Andy ()\nThe Large Magellanic Cloud (LMC) i s one of the best laboratories for extragalactic studies of star formation (SF) owing to its proximity (~50 kpc) and almost face-on orientation. For the last couple of years\, using the APEX telescope\, we have been mappin g the LMC in the CO(3-2) line at a spatial resolution of 4.5 pc aiming to cover 17.4 sq. deg. of the galaxy disk. Understanding the efficiency and e nvironmental conditions of SF are among the main goals of this survey. At the moment\, the survey is ~75% complete. In this talk\, I will present th e first results we have obtained based upon the current data set. Namely\, our estimates of the LMC clouds properties and the \\alpha_CO conversion factor\; CO(3-2)/CO(1-0) line ratios which in some clouds reach values abo ve one\; our analysis of stellar feedback fingerprints in the clouds of th e active SF region 30 Doradus.\n\nhttps://events.mpifr-bonn.mpg.de/indico/ event/295/contribution/29 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/29 END:VEVENT BEGIN:VEVENT SUMMARY:Interpreting the Millimetre Emission of Galaxies with IRAM and NIK A-2 (IMEGIN) DTSTART;VALUE=DATE-TIME:20230110T090000Z DTEND;VALUE=DATE-TIME:20230110T092000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-23@cern.ch DESCRIPTION:Speakers: KRAMER\, Carsten ()\nWe will present first results o f the ongoing large program "IMEGIN" at the IRAM 30-meter telescope to map the continuum emission of 22 nearby galaxies at 1mm and 2mm using the NIK A-2 camera. The mm part of the spectrum is one of the least explored parts of a galaxys spectral energy distribution (SED)\, yet it contains emissio n from three fundamentally important physical processes: These processes a re thermal emission from dust\, free-free emission from ionized gas and sy nchrotron emission from charged particles moving in the galactic magnetic field. In combination with a rich data set of ancillary data\, we aim at s tudying the total SEDs\, but also the spatially resolved SEDs\, to investi gate the relationship between the three physical processes and the link to star formation\, the dust emissivity beta\, and variations with environme nt. Here\, the focus will be on ngc891\, ngc2146\, ngc4254 (M99). The NIKA -2 transfer function and initial results from retrieving extended emission of ngc6946 using Planck maps will also be discussed.\n\nhttps://events.mp ifr-bonn.mpg.de/indico/event/295/contribution/23 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/23 END:VEVENT BEGIN:VEVENT SUMMARY:The APEX Magellanic Clouds Legacy Survey DTSTART;VALUE=DATE-TIME:20230110T092000Z DTEND;VALUE=DATE-TIME:20230110T094000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-24@cern.ch DESCRIPTION:Speakers: WEISS\, Axel ()\nhttps://events.mpifr-bonn.mpg.de/in dico/event/295/contribution/24 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/24 END:VEVENT BEGIN:VEVENT SUMMARY:The APEX LMC Legacy Survey: Feedback Fingerprints and Cloud Proper ties DTSTART;VALUE=DATE-TIME:20230110T094000Z DTEND;VALUE=DATE-TIME:20230110T100000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-25@cern.ch DESCRIPTION:Speakers: GRISHUNIN\, Konstantin ()\nThe Large Magellanic Clou d (LMC) is one of the best laboratories for extragalactic studies of star formation (SF) owing to its proximity (~50 kpc) and almost face-on orienta tion. For the last couple of years\, using the APEX telescope\, we have be en mapping the LMC in the CO(3-2) line at a spatial resolution of 4.5 pc a iming to cover 17.4 sq. deg. of the galaxy disk. Understanding the efficie ncy and environmental conditions of SF are among the main goals of this su rvey. At the moment\, the survey is ~75% complete. In this talk\, I will p resent the first results we have obtained based upon the current data set. Namely\, our estimates of the LMC clouds properties and the \\alpha_CO co nversion factor\; CO(3-2)/CO(1-0) line ratios which in some clouds reach v alues above one\; our analysis of stellar feedback fingerprints in the clo uds of the active SF region 30 Doradus.\n\nhttps://events.mpifr-bonn.mpg.d e/indico/event/295/contribution/25 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/25 END:VEVENT BEGIN:VEVENT SUMMARY:Resolved star formation of a low-metallicity dwarf galaxy: the APE X/LASMA survey of the Small Magellanic Cloud DTSTART;VALUE=DATE-TIME:20230110T102000Z DTEND;VALUE=DATE-TIME:20230110T104000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-26@cern.ch DESCRIPTION:Speakers: CHEN\, Rosie ()\nThe physical processes that dictate the fragmentation of a giant molecular\ncloud determines the stellar init ial mass function (IMF). Numerical\nsimulations show that IMFs can vary du e to environmental effects such as\nUV radiation\, metallicity\, or kineti c disturbance. The low metallicity\n(Z~0.2--0.06Zo)\, interacting\, activ e star-forming dwarf galaxy Small\nMagellanic Cloud (SMC) exhibits as a wh ole a bottom heavy IMF with far\nfewer high-mass stars compared to their l ower-mass counterparts\, even though\nsome region shows a canonical IMF sl ope. This contradicts to simulation\nexpectations and casts doubts on inte rpreting star formation in the early\nuniverse as galaxies are predominant ly metal poor. We present the LASMA\nCO & 13CO J=3-2 survey of the SMC: i ts first unbiased\, panoramic view of\nmolecular clumps/clouds at 6-pc res olution and reaching a lower mass limit\n~ 500 Mo thanks to LASMA's effici ency and resolution. With this comprehensive\ninventory of its molecular cloud population\, we construct the cloud mass\nfunction\, compare its spa tial distribution with that of the young stellar\nobjects\, and examine t he properties of star formation and conditions of the\nmolecular clouds\, in order to search for the trend/mechanism that caused\nthe dearth of high -mass stars in the SMC.\n\nhttps://events.mpifr-bonn.mpg.de/indico/event/2 95/contribution/26 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/26 END:VEVENT BEGIN:VEVENT SUMMARY:The Event Horizon Telescope recent results and future plans DTSTART;VALUE=DATE-TIME:20230110T104000Z DTEND;VALUE=DATE-TIME:20230110T110000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-27@cern.ch DESCRIPTION:Speakers: ROY\, Alan ()\nAPEX has played an important role in the EHT observations of M 87 and Sgr A* black holes. I will take a look at those and more recent results and the role that APEX played in those. To improve on those images the collaboration is planning to add stations to t he array\, add simultaneous multi-frequency capability\, and corresponding increased recording bandwidth. I will show the roadmap of these planned d evelopments up to 2029.\n\nhttps://events.mpifr-bonn.mpg.de/indico/event/2 95/contribution/27 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/27 END:VEVENT BEGIN:VEVENT SUMMARY:The EDGE-CALIFA survey: unveiling the star formation quenching mec hanisms in the local Universe DTSTART;VALUE=DATE-TIME:20230110T080000Z DTEND;VALUE=DATE-TIME:20230110T082000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-20@cern.ch DESCRIPTION:Speakers: COLOMBO\, Dario ()\nUnderstanding how galaxies cease to form stars represents an outstanding challenge for all galaxy evolutio n theories. The ``star formation quenching'' can be related to a complex i nterplay of phenomena such as the AGN activity\, the influence of large-sc ale dynamics\, or the environment in which galaxies live in. All this info rmation is available from the Integral Field Unit (IFU) CALIFA survey (San chez et al. 2016) which provides kpc-resolved measurements of stellar popu lation and ionized gas emission lines for a representative sample of local Universe galaxies. However\, disentangling the dominant quenching mechani sms is impossible without knowledge of the conditions of the molecular gas \, the raw fuel of star formation. With this aim\, we are assembling the E xtragalactic Database for Galaxy Evolution (EDGE\, Bolatto et al. 2017) wh ich\, to date\, consists of homogenized CO line dataset for more than 700 CALIFA targets observed with the CARMA\, APEX\, ACA\, GBT\, and LMT telesc opes. Through the EDGE-CALIFA dataset we have noticed that galaxies at dif ferent stages of their evolution show approximately similar molecular gas quantities and that the star formation efficiency (SFE) in the remaining c old gas reservoir is what modulates their retirement\, with lower efficien cies corresponding to more quiescent galaxies (Colombo et al. 2020). Cause s for the altered SFE (compared to the average value in star-forming disks ) are diverse and span from influence of bar and merger (Utomo et al. 2017 \, Chown et al. 2019) to the incremented shear (Colombo et al. 2018)\, and the presence of bulge (Villanueva et al. 2021). Nevertheless\, the molecu lar gas appears really reduced in the regions influenced by the AGN activi ty (Ellison et al. 2020). Through the combination of integrated and kpc-re solved CO measurements provided by EDGE\, we have observed that star forma tion fundamental relations are equivalent whether measured integrating acr oss the whole galaxy or on kpc-scale. This implies that the main physical processes that regulate star-formation operate on kpc-scale. Nevertheless\ , galaxy interactions\, galactic-wide outflows\, and the ignition of an AG N do influence star formation\, but they do not seem to have a direct effe ct galaxy-wide (Sanchez et al. 2021). Additionally\, on kpc-scale\, SFR in galaxies appear modulated by the hydrostatic mid-plane pressure (Barrera- Ballesteros et al. 2021) which indicates that SFR is self-regulated by mom entum injection from supernovae explosions.\n\nhttps://events.mpifr-bonn.m pg.de/indico/event/295/contribution/20 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/20 END:VEVENT BEGIN:VEVENT SUMMARY:Molecular tails of jellyfish galaxies DTSTART;VALUE=DATE-TIME:20230110T082000Z DTEND;VALUE=DATE-TIME:20230110T084000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-21@cern.ch DESCRIPTION:Speakers: JACHYM\, Pavel ()\nJellyfish galaxies are dramatic e xamples of galaxy evolution in clusters\, driven by the cluster environmen t in which ram pressure of the intracluster medium efficiently strips star -forming cool interstellar matter from infalling galaxies. A recent burst of observational evidence has revealed many new examples of extended “co metary” tails of various lengths and morphologies\, in which multiple ga s phases coexist and evolve in a rich interplay of physical processes\, so metimes giving birth to new stars. Millimeter observations have shown that cold molecular gas may form an important or even dominant component\, out to large intracluster distances. First single-dish (incl. APEX) observati ons have been followed by interferometry (ALMA) observations of a larger s ample of jellyfish galaxies. These are aimed at answering the principal qu estions about the incidence and evolution of the molecular component\, the efficiency of star formation in the RPS tails\, as well as the evolution and mixing of the stripped ISM with the surrounding ICM. Comparisons betwe en the interferometry and single-dish data indicated that a large fraction of molecular gas in the RPS tails may be in extended components.\n\nhttps ://events.mpifr-bonn.mpg.de/indico/event/295/contribution/21 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/21 END:VEVENT BEGIN:VEVENT SUMMARY:Summary & Outlook DTSTART;VALUE=DATE-TIME:20230111T105000Z DTEND;VALUE=DATE-TIME:20230111T111000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-48@cern.ch DESCRIPTION:Speakers: MENTEN\, Karl ()\nhttps://events.mpifr-bonn.mpg.de/i ndico/event/295/contribution/48 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/48 END:VEVENT BEGIN:VEVENT SUMMARY:Posters DTSTART;VALUE=DATE-TIME:20230110T150000Z DTEND;VALUE=DATE-TIME:20230110T161000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-49@cern.ch DESCRIPTION:Speakers: \nhttps://events.mpifr-bonn.mpg.de/indico/event/295/ session/6/contribution/49 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/session/6/contributi on/49 END:VEVENT BEGIN:VEVENT SUMMARY:An APEX CO survey of Evolved Stars DTSTART;VALUE=DATE-TIME:20230111T101000Z DTEND;VALUE=DATE-TIME:20230111T103000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-46@cern.ch DESCRIPTION:Speakers: JESTE\, Manali ()\nEvolved stars are important contr ibutors towards chemical enrichment of the interstellar medium. Many progr ams are ongoing to understand such mechanisms\, namely ATOMIUM (ALMA Traci ng the Origins of Molecules In dUst-forming oxygen-rich M-type stars)\, an ALMA Large Programme\, is in the forefront of this. The programme targets oxygen-rich evolved stars and studies the physical and chemical processes / presence of companions that may be responsible for the shaping of the st ellar winds\, which then turn into planetary nebulae in the later stages o f life. With the APEX telescope\, we are targeting what ALMA cannot achiev e\, the resolved out flux of the CSEs of these stars. By looking into thes e estimates\, we are able to determine a reliable mass-loss rate of these stars. Additionally\, although numerous studies are ongoing regarding evol ved stars\, not many are targeting the contribution from AGB stars as a po pulation. With the Nearby Evolved Stars Survey (NESS)\, we are using multi ple telescopes to study AGB stars within 3 kpc distance. APEX is a major c ontributor to this survey due to its unique location in the southern hemis phere\, and reliable sensitivity. We have observed about 150 stars with th e telescope in multiple-J CO transitions. In this talk\, I will present AP EX's contribution towards these two CO surveys of evolved stars and the in itial results that we have obtained so far.\n\nhttps://events.mpifr-bonn.m pg.de/indico/event/295/contribution/46 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/46 END:VEVENT BEGIN:VEVENT SUMMARY:Improved and tested atmospheric model for APEX\, ALMA and other su bmillimeter observatories DTSTART;VALUE=DATE-TIME:20230111T103000Z DTEND;VALUE=DATE-TIME:20230111T105000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-47@cern.ch DESCRIPTION:Speakers: PARDO\, Juan ()\nGround-based telescopes observing a t millimeter (mm) and submillimeter (submm) wavelengths have to deal with a line-rich and highly variable atmospheric spectrum\, both in space and t ime. Models of this spectrum play an important role in planning observatio ns that are appropriate for the weather conditions and also calibrating th ose observations. Through magnetic dipolar (M1) rotational transitions and electric dipolar (E1) transitions O2 and H2O\, respectively\, dominate th e atmospheric opacity in this part of the electromagnetic spectrum. Althou gh O2 lines\, and more generally the so-called dry opacity\, are relativel y constant\, the absorption related to H2O can change by several orders of magnitude leading from a totally opaque atmosphere near sea level with hi gh H2O columns to frequency windows with good transmission from high and d ry mountain sites. Other minor atmospheric gases\, such as O3 and N2O amon g others\, are present in the atmospheric spectrum which also includes non resonant collision-induced absorption due to several mechanisms. The aim o f our research is to improve the characterization of the mm/submm atmosphe ric spectrum using very stable APEX heterodyne receivers with excellent si deband separation and extremely high (kHz) spectral resolutions at the 500 0 m altitude Chajnantor site in northern Chile. This last aspect (spectral resolution) is the main improvement (by more than three orders of magnitu de) in the presented data with respect to our previous work conducted abou t 20 years ago from Mauna Kea in Hawai’i. These new measurements have en abled us to identify slight modifications needed in the Atmospheric Transm ission at Microwaves (ATM) model to better take into account minor constit uent vertical profiles\, include a few missing lines\, and adjust some hig h-energy O3 line frequencies. After these updates\, the ATM model is highl y consistent with all data sets presented in this work (within ~2% at 1 GH z resolution).\n\nhttps://events.mpifr-bonn.mpg.de/indico/event/295/contri bution/47 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/47 END:VEVENT BEGIN:VEVENT SUMMARY:The first detection of CD in the interstellar medium DTSTART;VALUE=DATE-TIME:20230111T090000Z DTEND;VALUE=DATE-TIME:20230111T092000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-44@cern.ch DESCRIPTION:Speakers: JACOB\, Arshia ()\nWhile the abundance of elemental deuterium is relatively low\, orders of magnitude higher D/H abundance rat ios have been found for many interstellar molecules\, enhanced by deuteriu m fractionation. In cold molecular clouds (T20-30K) gas-phase deuteration is controlled by reactions with CH2D+ and C2HD+. While the role of H2D+ in driving cold interstellar deuterium chemistry is well understood\, that s temming from CH2D+ is far less understood because of the absence of direct observational constraints of its key ions. Therefore\, making use of chem ical surrogates is imperative for exploring deuterium chemistry at interme diate temperatures. Formed at an early stage of ion-molecule chemistry\, d irectly from the dissociative recombination of CH3+ (CH2D+)\, CH (CD) form s an ideal tracer for investigating deuterium substitution initiated by re actions with CH2D+. In this talk I will present the first detection of CD\ , a probe of `warm’ deuterium chemistry in the interstellar medium\, car ried out using the APEX 12m telescope toward the widely studied low-mass p rotostellar system IRAS16293-2422.\n\nhttps://events.mpifr-bonn.mpg.de/ind ico/event/295/contribution/44 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/44 END:VEVENT BEGIN:VEVENT SUMMARY:Time-dependent photochemistry in carbon stars DTSTART;VALUE=DATE-TIME:20230111T095000Z DTEND;VALUE=DATE-TIME:20230111T101000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-45@cern.ch DESCRIPTION:Speakers: WIESEMEYER\, Helmut ()\nCircumstellar envelopes are par-excellence laboratories for time dependent chemistry out of equilibriu m. Owing to the stellar pulsation\, the physical and chemical conditions i n the extended photosphere change with periods of typically 100 to 1000 da ys. The expansion of the envelope takes the gas to travel to the astrosphe re on a timescale of ~10 000 years. In both limiting cases\, the involved carbon chemistry is out of equilibrium and requires adequate modeling. Thi s contribution presents a photo-chemical non-equilibrium model of the prot otypical carbon-star IRC+10216 bridging the two scales\, along with observ ational evidence for variable C+ emission from a dedicated monitoring prog ram. Complementary APEX observations of neutral carbon are taken into cons ideration and constitute an example of a synergy between sub-millimeter an d far-infrared spectroscopy.\n\nhttps://events.mpifr-bonn.mpg.de/indico/ev ent/295/contribution/45 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/45 END:VEVENT BEGIN:VEVENT SUMMARY:Star formation in extreme environments: A 200 pc high velocity fil ament in the Galactic center DTSTART;VALUE=DATE-TIME:20230110T110000Z DTEND;VALUE=DATE-TIME:20230110T112000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-28@cern.ch DESCRIPTION:Speakers: VADAMATTOM\, Veena ()\nThe Galactic center (GC) is a unique astrophysical laboratory hosting a variety of phenomena such as st ar formation\, large-scale outflows\, galactic winds\, and the central sup ermassive black hole Sgr A. The Central Molecular Zone (CMZ) is a ring-lik e formation of molecular gas within the innermost few hundred parsecs of t he GC\, consisting of the largest concentration of high-density molecular gas within the Milky Way. The CMZ is the most extreme star-forming environ ment (e.g.\, Sgr B) in the Galaxy\, characterized by high densities\, pres sures\, temperatures\, cosmic-ray ionization rates (> 1e10-15 s-1)\, and s trong magnetic fields. Towards the north of the CMZ\, there exists a 200 p c high-velocity filament with velocities exceeding 150 km/s. The CO emissi on from the SEDIGISM survey reveals\, for the first time\, the double heli x morphology and detailed kinematics of the structure. The velocity struct ure of the filament is indicative of cloud-cloud interactions with the CMZ . With follow-up molecular line observations (using the Yebes 40 m\, IRAM 30 m\, and APEX 12 m telescopes) covering a frequency range of 35-305 GHz\ , we have identified several molecular species\, including shocks (i.e.\, SiO and HNCO) and dense gas (N2H+) tracers\, CH3OH masers as well as compl ex organic molecules (i.e.\, CH3CN and HC3N). In addition\, several pre-st ellar and protostellar clumps found in the high-velocity cloud indicate th e ongoing star formation activity. The location of the filament in the GC\ , its unusual morphology\, proximity\, and interaction with CMZ\, and the chemical richness make it an ideal target to study cloud evolution and sta r formation in extreme environments.\n\nhttps://events.mpifr-bonn.mpg.de/i ndico/event/295/contribution/28 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/28 END:VEVENT BEGIN:VEVENT SUMMARY:Light deuterated molecules: the APEX-ALMA synergy DTSTART;VALUE=DATE-TIME:20230111T084000Z DTEND;VALUE=DATE-TIME:20230111T090000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-43@cern.ch DESCRIPTION:Speakers: REDAELLI\, Elena ()\nIn the quest for the ideal trac er of cold and dense prestellar gas on the verge of forming stars\, light deuterated molecules are a natural choice\, and\, among them\, the deutera ted forms of H3+ (H2D+\, D2H+) are particularly interesting. Given their l ow masses\, they are less affected by depletion and freeze out onto dust g rains. Furthermore\, deuterated species are only abundant in conditions of low temperatures and high densities\, where CO (the main destroyer of H2D +) is gone from the gas phase. Unfortunately\, these ions are difficult to detect\, but the recent increased capabilities of radio telescopes (both single dish and interferometers) have allowed to expand significantly the sample of detections of these species. In this context\, I will discuss th e results we have obtained with APEX and ALMA in particular in high-mass s tar-forming regions\, and I will show the complementarity of these instrum ents. I will also discuss how these observations can help us to cast light on the cosmic ray ionisation fraction\, a fundamental but elusive paramet er in the evolution of star-forming regions.\n\nhttps://events.mpifr-bonn. mpg.de/indico/event/295/contribution/43 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/43 END:VEVENT BEGIN:VEVENT SUMMARY:Synthetic observations and astrochemistry of 3D molecular cloud si mulations DTSTART;VALUE=DATE-TIME:20230110T171000Z DTEND;VALUE=DATE-TIME:20230110T173000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-40@cern.ch DESCRIPTION:Speakers: SEIFRIED\, Daniel ()\nhttps://events.mpifr-bonn.mpg. de/indico/event/295/contribution/40 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/40 END:VEVENT BEGIN:VEVENT SUMMARY:Study of water lines toward Galactic Hot Molecular Cores using APE X DTSTART;VALUE=DATE-TIME:20230111T080000Z DTEND;VALUE=DATE-TIME:20230111T082000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-41@cern.ch DESCRIPTION:Speakers: MERELLO\, Manuel ()\nI will present results of our s urvey of water lines (H2(18)O\, HDO) on a large sample of luminous clumps candidates to harbor Hot Molecular Cores\, using APEX nFLASH and SEPIA (fr eq. 200-500 GHz). Physical parameters were estimated\, including rotationa l temperatures and H2O abundances\, giving insights of the chemistry of wa ter during high-mass star formation. In addition\, I will present a brief summary of the different projects that the Chilean community have done wit h APEX telescope over the last years.\n\nhttps://events.mpifr-bonn.mpg.de/ indico/event/295/contribution/41 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/41 END:VEVENT BEGIN:VEVENT SUMMARY:APEX Status DTSTART;VALUE=DATE-TIME:20230109T081000Z DTEND;VALUE=DATE-TIME:20230109T083000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-1@cern.ch DESCRIPTION:Speakers: DURAN\, Carlos ()\nhttps://events.mpifr-bonn.mpg.de/ indico/event/295/contribution/1 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/1 END:VEVENT BEGIN:VEVENT SUMMARY:Welcome & Announcements\, APEX2023 DTSTART;VALUE=DATE-TIME:20230109T080000Z DTEND;VALUE=DATE-TIME:20230109T081000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-0@cern.ch DESCRIPTION:Speakers: MENTEN\, Karl ()\, WYROWSKI\, Friedrich ()\nhttps:// events.mpifr-bonn.mpg.de/indico/event/295/contribution/0 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/0 END:VEVENT BEGIN:VEVENT SUMMARY:APECS updates DTSTART;VALUE=DATE-TIME:20230109T085000Z DTEND;VALUE=DATE-TIME:20230109T091000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-3@cern.ch DESCRIPTION:Speakers: MUDERS\, Dirk ()\nThe APEX Control System (APECS) ke eps being updated using new versions of the ALMA Common Software (ACS) and new Linux distributions to benefit from recent versions of libraries and tools and to ensure that new server hardware can be supported. We plan to switch to Alma Linux 8.6 and ACS 2022JUN during the APEX shutdown period i n early 2023. Continuously updating the software allowed\, for example\, t he implementation of the new graphical observing status application that d isplays the scan details together with weather history and other informati on in a single GUI.\n\nhttps://events.mpifr-bonn.mpg.de/indico/event/295/c ontribution/3 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/3 END:VEVENT BEGIN:VEVENT SUMMARY:APEX operation DTSTART;VALUE=DATE-TIME:20230109T083000Z DTEND;VALUE=DATE-TIME:20230109T085000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-2@cern.ch DESCRIPTION:Speakers: PARRA\, Rodrigo ()\nhttps://events.mpifr-bonn.mpg.de /indico/event/295/contribution/2 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/2 END:VEVENT BEGIN:VEVENT SUMMARY:APEX Instrumentation overview DTSTART;VALUE=DATE-TIME:20230109T100000Z DTEND;VALUE=DATE-TIME:20230109T101000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-5@cern.ch DESCRIPTION:Speakers: KLEIN\, Bernd ()\nhttps://events.mpifr-bonn.mpg.de/i ndico/event/295/contribution/5 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/5 END:VEVENT BEGIN:VEVENT SUMMARY:Telescope improvements DTSTART;VALUE=DATE-TIME:20230109T091000Z DTEND;VALUE=DATE-TIME:20230109T093000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-4@cern.ch DESCRIPTION:Speakers: REYES\, Nicolas ()\nhttps://events.mpifr-bonn.mpg.de /indico/event/295/contribution/4 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/4 END:VEVENT BEGIN:VEVENT SUMMARY:The AMKID camera DTSTART;VALUE=DATE-TIME:20230109T103000Z DTEND;VALUE=DATE-TIME:20230109T105000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-7@cern.ch DESCRIPTION:Speakers: REYES\, Nicolas ()\nThe AMKID instrument is a bolome tric camera designed for operations at the APEX telescope. It simultaneous ly covers the 350um and 870um window with a square 15’X15’ field of vi ew. The instrument is scheduled to be installed at APEX during the first h alf of 2023\, opening new science opportunities at APEX. In this talk we r eview the design and main features of the instrument\, with special emphas is on the results of the laboratory characterization being performed befor e installation in Chile.\n\nhttps://events.mpifr-bonn.mpg.de/indico/event/ 295/contribution/7 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/7 END:VEVENT BEGIN:VEVENT SUMMARY:NFLASH Expansion for ALMA Band 10 and Multiband Observation Mode DTSTART;VALUE=DATE-TIME:20230109T101000Z DTEND;VALUE=DATE-TIME:20230109T103000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-6@cern.ch DESCRIPTION:Speakers: HEITER\, Christopher ()\nThe NFLASH receiver system is a single pixel heterodyne spectrometer designed for full polarization o bservations in ALMA Band 6 and 8. A recent upgrade of the instrument allow s simultaneous observation in both frequency channels using optical freque ncy filters\, which offers unique science opportunities to the astronomic community. This year\, after two years of operation as facility instrument at the APEX telescope\, the receiver system will be expanded by a high fr equency channel using the latest technology of broadband sideband separati ng mixer for additional efficient coverage of ALMA Band 10. In this talk/p oster the design of the upcoming high frequency expansion and its integrat ion in the NFLASH receiver system is explained and the new multiband obser vation mode is presented.\n\nhttps://events.mpifr-bonn.mpg.de/indico/event /295/contribution/6 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/6 END:VEVENT BEGIN:VEVENT SUMMARY:CONCERTO: commissioning and status DTSTART;VALUE=DATE-TIME:20230109T111000Z DTEND;VALUE=DATE-TIME:20230109T113000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-9@cern.ch DESCRIPTION:Speakers: FASANO\, Alessandro ()\nCarbON CII line in post-rEio nization and ReionizaTiOn (CONCERTO) is a low-resolution spectrometer with an instantaneous field-of-view of 18.6 arcmin\, operating in the 130–31 0 GHz transparent atmospheric window. It is installed on the 12-meter Atac ama Pathfinder Experiment (APEX) telescope at 5 100 m above sea level. The Fourier transform spectrometer (FTS) contains two focal planes hosting a total of 4 304 kinetic inductance detectors. The FTS interferometric patte rn is recorded on the fly while continuously scanning the sky. One of the goals of CONCERTO is to characterize the large-scale structure of the Univ erse by observing the integrated emission from unresolved galaxies via the line intensity mapping technique. In this presentation\, we introduce the CONCERTO instrument\, its commissioning results and current status.\n\nht tps://events.mpifr-bonn.mpg.de/indico/event/295/contribution/9 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/9 END:VEVENT BEGIN:VEVENT SUMMARY:Recent Results with ZEUS-2 on APEX DTSTART;VALUE=DATE-TIME:20230109T105000Z DTEND;VALUE=DATE-TIME:20230109T111000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-8@cern.ch DESCRIPTION:Speakers: STACEY\, Gordon ()\nZEUS-2 is a direct-detection gra ting spectrometer optimized for the detection of extragalactic sources in the short submillimeter windows. We will report results of our recent obse rving run where we focused on the detection of the [OIII] 88 um line from galaxies at redshifts between 2.7 and 4.4.\n\nhttps://events.mpifr-bonn.mp g.de/indico/event/295/contribution/8 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/8 END:VEVENT BEGIN:VEVENT SUMMARY:CCATp: Status and Science DTSTART;VALUE=DATE-TIME:20230109T140000Z DTEND;VALUE=DATE-TIME:20230109T142000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-13@cern.ch DESCRIPTION:Speakers: RIECHERS\, Dominik ()\nhttps://events.mpifr-bonn.mpg .de/indico/event/295/contribution/13 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/13 END:VEVENT BEGIN:VEVENT SUMMARY:Instrumentation at the SMA DTSTART;VALUE=DATE-TIME:20230109T134000Z DTEND;VALUE=DATE-TIME:20230109T140000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-12@cern.ch DESCRIPTION:Speakers: BLUNDELL\, Ray ()\nhttps://events.mpifr-bonn.mpg.de/ indico/event/295/contribution/12 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/12 END:VEVENT BEGIN:VEVENT SUMMARY:Instrumentation at the IRAM telescopes DTSTART;VALUE=DATE-TIME:20230109T132000Z DTEND;VALUE=DATE-TIME:20230109T134000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-11@cern.ch DESCRIPTION:Speakers: RISACHER\, Christophe ()\nThis talk will present the current and future instrumentation plans for the IRAM telescopes (30m sin gle dish and the NOEMA interferometer) as well as upgrade studies for the ALMA B7 receivers. Possible synergies/collaborations with other observator ies will also be discussed.\n\nhttps://events.mpifr-bonn.mpg.de/indico/eve nt/295/contribution/11 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/11 END:VEVENT BEGIN:VEVENT SUMMARY:Spectral imaging with KID: from CONCERTO@APEX to new approaches DTSTART;VALUE=DATE-TIME:20230109T130000Z DTEND;VALUE=DATE-TIME:20230109T132000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-10@cern.ch DESCRIPTION:Speakers: MONFARDINI\, Alessandro ()\nStarting from the experi ence\, status and preliminary results of CONCERTO@APEX\, I will briefly de scribe the R&D on-going in Grenoble and concerning new options for spectra l imaging. In particular\, I would like to present the new hyper-spectral device based on KID that is compatible with large field-of-view spectral i maging with spectral resolution in the range 100-1000. I will present the results obtained from our prototype operating at 90 GHz.\n\nhttps://events .mpifr-bonn.mpg.de/indico/event/295/contribution/10 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/10 END:VEVENT BEGIN:VEVENT SUMMARY:Molecular clouds roasted by starburst clusters DTSTART;VALUE=DATE-TIME:20230110T165000Z DTEND;VALUE=DATE-TIME:20230110T171000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-38@cern.ch DESCRIPTION:Speakers: STANKE\, Thomas ()\nStar formation in massive cluste rs is an important mode of star formation\, particularly at the peak of co smic star formation and in more local starburst environments. The young ma ssive clusters can be expected to provide substantial feedback to the surr ounding clouds\, possibly skewing the outcome of star formation\, e.g.\, t he resulting IMF. In an attempt to investigate to which extent young massi ve clusters heat their surrounding clouds we have started a study of the t emperature structure of the dense gas around the four most massive Galacti c young clusters still found to be associated with molecular gas\, and\, f or comparison\, the Carina Giant HII region featuring more dispersed star formation. Our APEX H2CO temperature measurements in NGC3603 show a clear decline of temperature with distance from the cluster\, indicating signifi cant radiative feedback. Corresponding N2H+(3-2) maps in turn indicate the presence of very cold dense gas even in some of the warm clumps in the im mediate surroundings of the cluster\, hinting at a complex temperature str ucture within the dense clumps. Preliminary results from ongoing observati ons of the remaining regions will also be shown.\n\nhttps://events.mpifr-b onn.mpg.de/indico/event/295/contribution/38 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/38 END:VEVENT BEGIN:VEVENT SUMMARY:The Event Horizon telescope - opportunities beyond the shadow DTSTART;VALUE=DATE-TIME:20230109T144000Z DTEND;VALUE=DATE-TIME:20230109T150000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-15@cern.ch DESCRIPTION:Speakers: ZENSUS\, Anton ()\nThe EHT\, with the active partici pation of APEX\, has fulfilled its initial mission of making first images of the shadows of super massive black holes. I shall review the scientific opportunities going beyond the initial imaging experiments of the EHT and outline the plans for addressing these opportunities through a continued improvement of the sensitivity and robustness of the EHT observations and various new developments in the areas of telescope instrumentation and obs ervational techniques. In all of these contexts\, APEX will continue to pl ay an essential role in a whole range of future observational programs\, i ncluding those aimed at a frequent monitoring of sources and engaging in d edicated multi-frequency campaigns which would greatly enhance the present observational options for studying cosmic black holes and active galactic nuclei.\n\nhttps://events.mpifr-bonn.mpg.de/indico/event/295/contribution /15 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/15 END:VEVENT BEGIN:VEVENT SUMMARY:The AtLAST project DTSTART;VALUE=DATE-TIME:20230109T142000Z DTEND;VALUE=DATE-TIME:20230109T144000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-14@cern.ch DESCRIPTION:Speakers: CICONE\, Claudia ()\nhttps://events.mpifr-bonn.mpg.d e/indico/event/295/contribution/14 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/14 END:VEVENT BEGIN:VEVENT SUMMARY:Modelling the thermodynamical state of the circumgalactic medium a round the brightest cluster galaxy in MACS1931-26 DTSTART;VALUE=DATE-TIME:20230109T154000Z DTEND;VALUE=DATE-TIME:20230109T160000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-17@cern.ch DESCRIPTION:Speakers: GHODSI\, Laya ()\nA different chemistry of the inter stellar medium (ISM) is expected in the circumgalactic medium (CGM) gas wh ere high-energetic particles (i.e. Cosmic Rays) seem to be produced in-sit u by the hot X-ray gas\, as it is observed in the Perseus cluster. The CGM represents therefore a site where physical conditions might be different from the less extreme interstellar medium of galaxy discs. It is expected that in galaxy clusters (GCs) with intense SF and/or AGN activities the CG M (and the intracluster medium) contain large amounts of lower-density\, g alaxy-expelled\, molecular gas and dust\, which would then be subjected to an high-energy particle-dominated chemistry. This very different astroche mistry\, where extreme gas-dust thermal decoupling is expected\, and where CO can be destroyed over large mass-scales\, is the subject of our invest igation. In this scenario\, the traditional way to estimate the amount of molecular gas\, M(H2)\, and its physical properties may not be valid. In f act\, the CO molecules (the main observational tracer of H2) can dissociat e and leave behind Atomic Carbon (CI). Using both CO and CI lines to trace H2 results in detecting the multiphase H2 gas\, including the CO-poor CI- rich regions. I will present the results of the APEX observations of the C GM gas around the brightest cluster galaxy (BCG) of MACS1931-26 at z~0.35 which is experiencing an episode of active star formation. APEX/SEPIA660 w as tuned to observe simultaneously the CI[2-1] and CO(7-6) lines. I will d iscuss the detection of these two lines and show how the combination of th ese observations with those of ACA/ALMA targeting CO(1-0)\, CO(3-2) and CO (4-3) can be used to constrain in a the physical status of the gas in this extreme environment. Further development of this project will be also pre sented.\n\nhttps://events.mpifr-bonn.mpg.de/indico/event/295/contribution/ 17 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/17 END:VEVENT BEGIN:VEVENT SUMMARY:Going beyond ALMA band 9: [CII] emission from the CGM in the Spide rweb galaxy at z=2.1 DTSTART;VALUE=DATE-TIME:20230109T152000Z DTEND;VALUE=DATE-TIME:20230109T154000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-16@cern.ch DESCRIPTION:Speakers: DE BREUCK\, Carlos ()\nI will present the detection of [CII] emission from the Circum Galactic Medium (CGM) surrounding the z= 2.1 Spiderweb galaxy. Comparing the velocity profile of the line with ALMA [CI] and CO(4-3)\, we can identify that the main origin of the [CII] is t he CGM rather than the AGN. This detection at 601.8 GHz was made possible thanks to the extended frequency coverage of SEPIA660 compared to the ALMA receivers\, highlighting the APEX can be competitive even for relatively faint extragalactic lines.\n\nhttps://events.mpifr-bonn.mpg.de/indico/even t/295/contribution/16 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/16 END:VEVENT BEGIN:VEVENT SUMMARY:Do quasars impact the molecular ISM of their host galaxy? DTSTART;VALUE=DATE-TIME:20230109T162000Z DTEND;VALUE=DATE-TIME:20230109T164000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-19@cern.ch DESCRIPTION:Speakers: MOLYNEUX\, Stephen ()\nAGN feedback processes are th ought to regulate the observed co-evolution of accreting black holes and t heir host galaxy that is observed across cosmic time\, but our understandi ng is still in its infancy. Molecular gas in these galaxies seems to play a significant role in this picture and so characterising this gas and anal ysing its relation to jets and outflows is an important avenue of research . I will present analysis of the molecular gas properties of an unbiased s ample of 17 Type 2 quasars at z\n\nhttps://events.mpifr-bonn.mpg.de/indico /event/295/contribution/19 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/19 END:VEVENT BEGIN:VEVENT SUMMARY:A-MKID synergies with SPT-protoclusters: characterizing spectacula r star-forming nodes in the distant cosmic web DTSTART;VALUE=DATE-TIME:20230109T160000Z DTEND;VALUE=DATE-TIME:20230109T162000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-18@cern.ch DESCRIPTION:Speakers: SULZENAUER\, Nikolaus ()\nOur Universe evolved hiera rchically\, build-up gradually from galaxy groups to clusters. Simulations suggest that the highest star-formation rates (SFRs) occurred in the prot ocluster (PC) environment with the most massive structures reaching peak a ctivity at an even earlier epoch than those of lower mass (e.g. Overzier & Kashikawa 2019). Groups of coeval star-forming\, submm-bright galaxies (S MGs) seem to rapidly assemble into giant ellipticals typically observed at the cores of local galaxy clusters. Identifying these rare\, synchronized groups of star-bursting galaxies back into the Epoch of Reionization (EoR ) has remained challenging. The South Pole Telescope (SPT-SZ) survey\, cov ering 2500 deg^2 at 1.4 mm wavelength\, discovered a population of strongl y lensed\, high-redshift galaxies (Vieira et al. 2010). Improving on the ~ 1’ resolution\, APEX/LABOCA and ALMA 870µm follow-ups showed that ~10 % of the SPT-SZ sources break up into extended\, non-lensed systems. A tota l of 98 LABOCA sources were discovered in a deep mapping program to charac terize the clustering of nine candidates (Wang et al. 2021). Throughout su bsequent ALMA cycles\, atomic and molecular lines were targeted for redshi fts\, confirming galaxy counterparts as distant as z=6.9 or only 800 Myrs after the Big Bang. The most spectacular example identified so far is SPT2 349-56 at z=4.3 (Miller et al. 2018). This source resolves into more than 30 SMGs with ALMA. A stunning SFR of 16\,500 Msol per year is found and 15 (U)LIRGs are contained within a projected radius equal to the MW-LMC dist ance. Similarly impressive\, the PC core SPT0303-59 at z~3.3\, contains a x5-overdensity in SMGs within the 2 Mpc (~5 arcmin) environment that add u p to a total SFR of more than 20\,000 Mo per year. In contrast to SPT2349- 56\, it shows a system of bright satellite SMGs alongside a possibly more evolved core. Evolutionary effects operating on PC cores would open a wind ow to study cosmology with a larger sample of these objects. Until now\, r esearch on protocluster cores has been severely hampered by low number sta tistics and a biased selection function that predominantly identifies the most extreme objects on the sky. As a remedy\, we propose to continue the highly successful `wedding cake’ approach of SPT—APEX—ALMA cross-mat ching\, with the new\, large-format (15’x15’)\, dual color (870µm/350 µm) bolometer camera\, A-MKID\, at APEX. In this talk\, I will highlight possible synergies between A-MKID observing capabilities and the upcoming\ , SPT-3G catalog\, reaching a factor of three deeper in sensitivity. For t he very first time\, the statistical properties of potentially hundreds of new protocluster cores – possibly containing thousands of bright submm satellite galaxies – will be within reach. This will finally allow us to test how massive galaxy formation proceeds in the early Universe.\n\nhttp s://events.mpifr-bonn.mpg.de/indico/event/295/contribution/18 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/18 END:VEVENT BEGIN:VEVENT SUMMARY:The SEDIGISM survey DTSTART;VALUE=DATE-TIME:20230110T132000Z DTEND;VALUE=DATE-TIME:20230110T134000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-31@cern.ch DESCRIPTION:Speakers: URQUHART\, James ()\nThe SEDIGISM (Structure\, Excit ation and Dynamics of the Inner Galactic Interstellar Medium) survey is an APEX legacy project that has mapped 84 square degrees of the Galactic pla ne between 300 and 31 degrees of Galactic longitude in several molecular t ransitions\, including 13CO and C18O . It has an angular resolution of 30' ' and a sensitivity of ~0.9 K at 0.25 km/s velocity resolution\, which pro vides a detailed molecular view of a wide range of structures\, from indiv idual star-forming clumps to giant molecular clouds and complexes. The cov erage includes a good fraction of the first and fourth Galactic quadrants\ , allowing us to constrain the large scale distribution of cold molecular gas in the inner Galaxy. In this talk I will give an overview of the surve y and the data products available\, present some recent highlights and pro vide an update on ongoing and future work being conducted by the SEDIGISM team.\n\nhttps://events.mpifr-bonn.mpg.de/indico/event/295/contribution/31 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/31 END:VEVENT BEGIN:VEVENT SUMMARY:FEEDBACK: A synergy project between SOFIA and APEX DTSTART;VALUE=DATE-TIME:20230110T130000Z DTEND;VALUE=DATE-TIME:20230110T132000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-30@cern.ch DESCRIPTION:Speakers: KABANOVIC\, Slawa ()\nMassive stars interact with th eir environment through ionizing radiation and stellar winds and even- tua lly as supernovae. This stellar feedback regulates the evolution of the in terstellar medium by triggering the formation of stars but also by destroy ing the parental star-forming cloud. The gas heated by UV radiation cools the atomic\, warm photodissociation region (PDR) via far- infrared cooling lines\, in particular the [CII] 158 μm line and the [OI] 63 μm line. De eper into the colder and dense molecular cloud\, low- to mid CO J-lines ar e the dominant cooling lines. Spectrally resolved observations of these li nes are extremely valuable not only to characterize the gas density and te mperature of the PDR\, but also for tracing the dynamics of the atomic and molecular gas. The SOFIA legacy project FEEDBACK (Schneider et al. 2020) performed extended maps in the [CII] and [OI] lines in 11 Galactic massive star-forming regions and obtained in most of these sources maps in 12CO a nd 13CO(3-2) with APEX. On behalf of the FEEDBACK consortium we will prese nt a selection of the first exciting results of this program. • In most of the FEEDBACK sources we discovered expanding stellar wind driven [CII] shells (Luisi et al. 2021\, Tiwari et al. 2021\, Beuther et al. 2022\, Bon ne et al. 2022) without CO counterpart\, suggesting that the shell expands into an almost atomic envelope. The expansion compresses the gas efficien tly into a shell that fragments and forms new stars. • In the more evolv ed RCW79 HII-region bubble\, we observe in addition to the expanding [CII] shell photoevaporation flows in [CII] that erode the molecular cloud (Bon ne et al.\, in prep.). This would be a clear observational signature of th e destruction of clouds by stellar feedback. • We detected large amounts of cold [CII] that is associated with an HI envelope around RCW 120 (Kaba novic et al. 2022). An analysis of the CO lines indicated that the parenta l molecular cloud is flat or sheet-like. We also showed that strong self-a bsorption effects in the CO and [CII] spectra can be well quantified with a two-layer radiative transfer model and synthetic maps\, compensating for self-absorption can be produced. • In the massive star formation region Cygnus X we observed widespread low-surface bright- ness [CII] at high ve locities (∼20 km/s) in CO-dark\, mostly atomic gas. We propose a scenari o in which dense\, molecular clouds\, embedded in HI gas\, dynamically int eract. This is the first time that the assembly of molecular clouds is wit nessed - thanks to extended [CII] and CO maps.\n\nhttps://events.mpifr-bon n.mpg.de/indico/event/295/contribution/30 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/30 END:VEVENT BEGIN:VEVENT SUMMARY:Study magnetic fields and dust physics with APEX/A-MKID DTSTART;VALUE=DATE-TIME:20230110T163000Z DTEND;VALUE=DATE-TIME:20230110T165000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-37@cern.ch DESCRIPTION:Speakers: LE\, Tram Ngoc ()\nMagnetic field is believed to pla y an important role in the star formation process. Dust polarization induc ed by aligned dust grains is widely used to study magnetic fields in the d ifferent regions from the diffuse medium to star-forming regions. Furtherm ore\, as dust polarization reflects on the intrinsic properties of dust gr ains\, polarimetry observations will allow us to probe the fundamental dus t physics. Therefore\, the upcoming APEX/A-MKID polarimetric observations will essentially contribute to this active research field. In this talk\, we will present the recent development of the theory of grain alignment to interpret the APEX/A-MKID observations and the synergies with other polar imetric facilities.\n\nhttps://events.mpifr-bonn.mpg.de/indico/event/295/c ontribution/37 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/37 END:VEVENT BEGIN:VEVENT SUMMARY:Status/results of the CAFFEINE program with ArTéMiS DTSTART;VALUE=DATE-TIME:20230110T161000Z DTEND;VALUE=DATE-TIME:20230110T163000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-36@cern.ch DESCRIPTION:Speakers: ANDRE\, Philippe ()\nhttps://events.mpifr-bonn.mpg.d e/indico/event/295/contribution/36 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/36 END:VEVENT BEGIN:VEVENT SUMMARY:LASMAGAL: 12/13CO J=3-2 observations toward NGC6334 star forming c omplex DTSTART;VALUE=DATE-TIME:20230110T144000Z DTEND;VALUE=DATE-TIME:20230110T150000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-35@cern.ch DESCRIPTION:Speakers: NEUPANE\, Sudeep ()\nStars form in molecular clouds/ clumps which themselves are found in giant molecular complexes (GMCs) that are filamentary in nature. To understand the star formation processes in the GMCs and investigate the role of large scale gas kinematics as well as the role of feedback from OB stars/HII regions/bubbles\, we observed NGC6 334 star forming complex extended over ~100 pc at a distance of 1.7kpc usi ng LASMA instrument at APEX telescope in 12/13CO J=3-2 molecular lines. We achieved an rms of 0.3-0.4 K in CO brightness temperature at a spectral r esolution of 0.25km/s and an angular resolution of 19" (~0.15pc). In this talk\, I will present the excitation conditions and kinematics of the gas traced by optically thick and thin pair of CO lines in the extended NGC633 4 filament and emphasize the role of feedback in shaping the morphology an d kinematic structure of the gas in the region.\n\nhttps://events.mpifr-bo nn.mpg.de/indico/event/295/contribution/35 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/35 END:VEVENT BEGIN:VEVENT SUMMARY:The chemistry of hot cores in the outer Galaxy DTSTART;VALUE=DATE-TIME:20230110T142000Z DTEND;VALUE=DATE-TIME:20230110T144000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-34@cern.ch DESCRIPTION:Speakers: BELLOCHE\, Arnaud ()\nWe wish to test observationall y if the low metallicity and dust-to-gas ratio of the interstellar medium in the outer Galaxy has an impact on the chemical composition of ice mantl es of dust grains in star forming regions. To do this\, we recently used t he APEX and IRAM 30 m radio telescopes to search for hot molecular cores i n the outer Galaxy. We successfully identified several candidates. The nex t step is to observe them at high angular resolution and sensitivity with ALMA and NOEMA to derive their chemical composition in terms of complex or ganic molecules in order to test predictions of astrochemical models. I wi ll present the status of this project.\n\nhttps://events.mpifr-bonn.mpg.de /indico/event/295/contribution/34 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/34 END:VEVENT BEGIN:VEVENT SUMMARY:Atomic carbon in star-forming clumps in the Milky Way DTSTART;VALUE=DATE-TIME:20230110T140000Z DTEND;VALUE=DATE-TIME:20230110T142000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-33@cern.ch DESCRIPTION:Speakers: KARSKA\, Agata ()\nEmission in the fine structure li nes of ionized and neutral carbon and rotational lines of CO from molecula r clouds are among the most important diagnostic probes of star formation. In the most shielded\, dense clumps\, carbon is mostly locked in CO\, whi le much of the [C I] and the [C II] emission originates in layers exposed to UV radiation. In low-metallicity environments\, however\, the dust abun dances are lower and the shielding is less efficient. As a result\, [C II] constitutes a dominant form of carbon and becomes an important tracer of molecular gas not seen in CO. The amount of such "CO-dark gas" increases s harply even within the Milky Way\, providing a path to study the CO/C/C+ t ransition as a function of metallicity. In this talk\, I will summarize AP EX [C I] 492 GHz observations toward a representative sample of high-mass star-forming clumps in the inner Galaxy identified by the ATLASGAL survey (Lee et al. 2022). Combined with [C I] 809 GHz data\, physical conditions of the [C I] gas are determined using LTE and non-LTE modeling. I will als o show preliminary results of a similar study toward clumps from the Outer Galaxy High Resolution Survey (OGHReS\; PI: C. König & J. Urquhart). Com bining with clumps in the inner Galaxy\, we obtain gradients of [C I] / CO and H2 / [C I] as a function of metallicity. Those pave a new path toward the interpretation of carbon observations in extragalactic environments. Co-authors: M.-Y. Lee\, C. König\, J. Urquhart\, F. Wyrowski\, A. Belloch e\, D. Colombo\, K. Menten\, M. Tiwari\, R. Güsten\n\nhttps://events.mpif r-bonn.mpg.de/indico/event/295/contribution/33 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/33 END:VEVENT BEGIN:VEVENT SUMMARY:OGHReS – The Outer Galaxy High Resolution Survey in CO – Overv iew and early science DTSTART;VALUE=DATE-TIME:20230110T134000Z DTEND;VALUE=DATE-TIME:20230110T140000Z DTSTAMP;VALUE=DATE-TIME:20260905T195749Z UID:indico-contribution-295-32@cern.ch DESCRIPTION:Speakers: KOENIG\, Carsten ()\nOGHReS is a new\, unbiased larg e-scale survey of the southern outer Galactic plane between 180◦ \n\nhtt ps://events.mpifr-bonn.mpg.de/indico/event/295/contribution/32 LOCATION:Schloss Ringberg URL:https://events.mpifr-bonn.mpg.de/indico/event/295/contribution/32 END:VEVENT END:VCALENDAR