371 Conferences false [["0", "Code of Conduct"], ["1", "Conference Proceedings Material"], ["minutes", "Minutes"], ["notes", "Notes"], ["paper", "Paper"], ["poster", "Poster"], ["slides", "Slides"], ["summary", "Summary"]] 6c9e606df0845ea84b327fc5f7fd6dee 14 evn2024@mpifr.de <h1>The EVN Symposium</h1> <p>The European VLBI Network Symposium is the main forum for discussion of the latest Very Long Baseline Interferometry scientific results and technical and technological developments within the EVN member countries. The 16th EVN Symposium and Users meeting, hosted by the Max-Planck-Institut f&uuml;r Radiostronomie, took place in Bonn in September 2-6, 2024.</p> <p><img alt="" src="https://events.mpifr-bonn.mpg.de/indico/event/371/picture/25.png" style="height:450px; width:600px" /></p> <p><em>Informal group picture, taken on September 3, 2024 (Aleksei Nikonov)</em></p> <p style="text-align:center"><img alt="Poster thumbnail" src="https://events.mpifr-bonn.mpg.de/indico/event/371/picture/10.webp" style="height:452px; width:320px" /></p> <p style="text-align:center"><span style="font-size:11px"><em>Conference poster (for PDF version see the poster menu page).</em></span></p> <p>The covered topics included:</p> <ul> <li>Active galactic nuclei and relativistic outflows</li> <li>Starburst galaxies, extragalactic masers, and supernovae</li> <li>Stellar evolution and stellar masers</li> <li>Transient sources and pulsars</li> <li>Astrometric, geodetic &amp; space applications of VLBI</li> <li>VLBI technology developments</li> <li>Users feedback</li> <li>Current and future VLBI facilities and international cooperation</li> </ul> <p>Invited speakers:</p> <ul> <li>Markus Ackermann (DESY, Zeuthen, Germany)</li> <li>Bia Boccardi (MPIfR, Bonn, Germany)</li> <li>Roger Deane (University of Witwatersrand, Johannesburg, South Africa)</li> <li>Simon Garrington (Jodrell Bank Observatory, Manchester, United Kingdom)</li> <li>Giancarlo Ghirlanda (Osservatorio di Brera, Milano, Italy)</li> <li>Preeti Kharb (Tata Institute for Fundamental Research, Pune, India)</li> <li>Michela Mapelli (Universit&auml;t Heidelberg, Germany)</li> <li>Benito Marcote (Joint Institute for VLBI-ERIC, Dwingeloo, The Netherlands)</li> <li>James Miller-Jones (Curtin University, Melbourne, Australia)</li> <li>Suma Murthy&nbsp;(Joint Institute for VLBI-ERIC, Dwingeloo, The Netherlands)</li> <li>Alexander Plavin (Harvard-Smithsonian Centre for Astrophysics, Cambridge, MA, USA)</li> <li>Eduardo Ros (MPIfR, Bonn, Germany)</li> <li>Gabriele Surcis (Osservatorio di Cagliari, Italy)</li> <li>Kiyoaki Wajima (KASI Daejeon, Korea &amp; Shanghai Observatory, PR China)</li> <li>Benjamin Winkel (MPIfR, Bonn, Germany)</li> <li>Simona Vegetti (MPA, Garching, Germany)</li> <li>Jun Yang (Chalmers University of Technology, G&ouml;teborg, Sweden)</li> </ul> <p>Scientific Organising Committee:</p> <ul> <li>Tao An (Shanghai Observatory, China)</li> <li>Pikky Atri (ASTRON, Dwingeloo, Netherlands)</li> <li>Paola Castangia (INAF Cagliari, Italy)</li> <li>Talvikki Hovatta (Aalto University, Espoo, Finland)</li> <li>Marcin Gawroński (University of Torun, Poland)</li> <li>Michael Lindqvist (Onsala Space Observatory, Sweden)</li> <li>Andrei Lobanov (MPIfR, Bonn, Germany; chair)</li> <li>Sara Motta (INAF Milano, Italy)</li> <li>Tom Muxlow (University of Manchester, UK)</li> <li>Zsolt Paragi (JIV-ERIC, Dwingeloo, Netherlands)</li> <li>Kazi Rygl (INAF Bologna, Italy)</li> </ul> <p>Local Organising Committee:</p> <ul> <li>Si&acirc;n Adey</li> <li>Vieri Bartolini</li> <li>Petra Benke</li> <li>Lena Debbrecht</li> <li>Sergio Dzib-Quijano</li> <li>JongSeo Kim</li> <li>Galina Lipunova</li> <li>Andrei P. Lobanov</li> <li>Jan R&ouml;der</li> <li>Eduardo Ros (chair)</li> <li>Saurabh</li> </ul> <p>Conference proceedings will be published as result of the conference presentations and discussion (see the menu to the left).&nbsp; Stay tuned for more information!</p> <h2><img alt="" src="https://events.mpifr-bonn.mpg.de/indico/event/371/picture/0.png" style="height:82px; width:700px" /></h2> False CJD Bonn Castell

Graurheindorfer Str. 149, 53117 Bonn

2024-09-02T09:00:00 2024-09-06T15:00:00 2023-11-22T16:57:26 2024-12-30T17:22:04 Europe/Berlin 4dffa7689a6089770a09283de01dfe1c 6c9e606df0845ea84b327fc5f7fd6dee 112 false [["0", "Code of Conduct"], ["1", "Conference Proceedings Material"], ["minutes", "Minutes"], ["notes", "Notes"], ["paper", "Paper"], ["poster", "Poster"], ["slides", "Slides"], ["summary", "Summary"]] Institute of Radio Astronomy and Astrophysics (IRyA), UNAM 77ec342663f6f5aa017d5aabd12c373a Institute of Radio Astronomy and Astrophysics (IRyA), UNAM 77ec342663f6f5aa017d5aabd12c373a 9018688e4a68fbc46ce62a74d2c80187 IRyA, UNAM 0b6a1b66d9341b800f6ca0b831811a39 CJD Bonn Castell

Graurheindorfer Str. 149, 53117 Bonn

2024-09-05T09:30:00 2024-09-05T09:45:00 00:15 Very Long Baseline Interferometry (VLBI) provides high angular resolution images and has been used for stellar astrometry for decades. In the DYNAMO-VLBA project, we utilize the Very Long Baseline Array (VLBA) to study tight binary and multiple pre-main-sequence stars, whose components have detectable radio emission and typical separations on the order of milli-arcseconds. Consequently, Gaia cannot provide information on their orbital parameters, making VLBA observations essential for ongoing study. We report dynamical mass measurements of the individual stars in the S1 system in Ophiuchus and EC95 in Serpens. S1 is the most luminous and massive stellar member of the nearby Ophiuchus star-forming region. We found that the primary component, S1A, has a mass of 4.11 ± 0.10 M⊙ , significantly less than the previously reported 6 M⊙, highlighting a discrepancy where the models corresponding to S1A's HR diagram location predict masses at least 25% higher than the dynamical mass. The secondary, S1B, has a mass of 0.831 ± 0.014 M⊙. Additionally, we detected the secondary component during periastron for the first time. In the triple system EC95 in the Serpens region, we measured the masses of EC95A and EC95B, finding 2.148 ± 0.097 M⊙ and 1.998 ± 0.116 M⊙, respectively. For the first time, we estimated the mass of EC95C to be 0.192 ± 0.545 M⊙ with a period of 179.3 ± 20.1 years. The dynamical mass estimations derived from VLBA data are free of assumptions on the physical parameters of the stars and could be used to test evolutionary models of pre-main-sequence stars. paper doc https://events.mpifr-bonn.mpg.de/indico/images/word.png word file ppt https://events.mpifr-bonn.mpg.de/indico/images/powerpoint.png powerpoint file pdf https://events.mpifr-bonn.mpg.de/indico/images/pdf_small.png pdf file odt https://events.mpifr-bonn.mpg.de/indico/images/writer.png writer file odp https://events.mpifr-bonn.mpg.de/indico/images/impress.png presentation file ods https://events.mpifr-bonn.mpg.de/indico/images/calc.png spreadsheet file other https://events.mpifr-bonn.mpg.de/indico/images/file_small.png unknown type file link https://events.mpifr-bonn.mpg.de/indico/images/link.png link 0 doc https://events.mpifr-bonn.mpg.de/indico/images/word.png word file ppt https://events.mpifr-bonn.mpg.de/indico/images/powerpoint.png powerpoint file pdf https://events.mpifr-bonn.mpg.de/indico/images/pdf_small.png pdf file odt https://events.mpifr-bonn.mpg.de/indico/images/writer.png writer file odp https://events.mpifr-bonn.mpg.de/indico/images/impress.png presentation file ods https://events.mpifr-bonn.mpg.de/indico/images/calc.png spreadsheet file other https://events.mpifr-bonn.mpg.de/indico/images/file_small.png unknown type file link https://events.mpifr-bonn.mpg.de/indico/images/link.png link 1 doc https://events.mpifr-bonn.mpg.de/indico/images/word.png word file ppt https://events.mpifr-bonn.mpg.de/indico/images/powerpoint.png powerpoint file pdf https://events.mpifr-bonn.mpg.de/indico/images/pdf_small.png pdf file odt https://events.mpifr-bonn.mpg.de/indico/images/writer.png writer file odp https://events.mpifr-bonn.mpg.de/indico/images/impress.png presentation file ods https://events.mpifr-bonn.mpg.de/indico/images/calc.png spreadsheet file other https://events.mpifr-bonn.mpg.de/indico/images/file_small.png unknown type file link https://events.mpifr-bonn.mpg.de/indico/images/link.png link poster doc https://events.mpifr-bonn.mpg.de/indico/images/word.png word file ppt https://events.mpifr-bonn.mpg.de/indico/images/powerpoint.png powerpoint file pdf https://events.mpifr-bonn.mpg.de/indico/images/pdf_small.png pdf file odt https://events.mpifr-bonn.mpg.de/indico/images/writer.png writer file odp https://events.mpifr-bonn.mpg.de/indico/images/impress.png presentation file ods https://events.mpifr-bonn.mpg.de/indico/images/calc.png spreadsheet file other https://events.mpifr-bonn.mpg.de/indico/images/file_small.png unknown type file link https://events.mpifr-bonn.mpg.de/indico/images/link.png link 2026-03-06 2026-03-07