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Prof.
6c9e606df0845ea84b327fc5f7fd6dee
14
Dissecting the Universe - Workshop on Results from High-Resolution VLBI
<p><img alt="" src="https://events.mpifr-bonn.mpg.de/indico/event/4/material/0/0.png" style="height:430px; width:720px" /></p>
<p><strong>Scientific rationale:</strong></p>
<p>Recent developments have pushed the limits of resolution in astrophysics to new frontiers. Very-long-baseline interferometry (VLBI) at millimetre wavelengths or using antennas in space yields resolutions down to tens of microarcseconds (that is, fractions of nanoradians). These observations probe compact objects such as the innermost regions of active galactic nuclei. Space VLBI is living a new era at present with the results from the RadioAstron mission, enhancing radio interferometry in terms of resolution at least one order of magnitude with respect to ground-based VLBI. Millimetre VLBI also brings radio interferometry to a new range of resolution and with much enhanced sensitivity due to improvements in data bit rate. With more antennas capable of VLBI at 3-mm wavelength, and successful observations being carried out at 1-mm, a new window is open to universe at unprecedented resolution. This workshop will review recent results on high resolution radio astronomy, including opportunities provided by new antennas becoming available. It will also discuss on the applications of high-resolution imaging techniques and the synergies in the study of compact objects by space and mm-VLBI together. </p>
<p>Contributions to the workshop will be published online in this webpage; no regular proceedings are planned. Abstracts will be sent to the Astrophysical Data System.</p>
<p><strong>Scientific Organising Committee:</strong></p>
<p>E. Ros (MPIfR; Chair), M. Giroletti (IRA-INAF), T. Hovatta (Aalto Univ.), Y.Y. Kovalev (ASC Lebedev), A.P. Lobanov (MPIfR), J.A. Zensus (MPIfR)</p>
<p><strong>Local Organising Committee:</strong></p>
<p>E. Ros (Chair), G. Bruni, B. Naunheim, J.A. Zensus</p>
<p><strong>Sponsors:</strong></p>
<p>This meeting is sponsored by the MPI für Radioastronomie and by <a href="http://www.radionet-eu.org/">RadioNet3</a>. RadioNet3 has received funding from the European Union’s Seventh Framework Programme for research, technological development and demonstration under grant agreement no 283393.</p>
<p> </p>
<p><img alt="" src="http://www.radionet-eu.org/sites/radionet-eu.org/files/cms/images/RadioNet_Logo_200.jpg" style="height:78px; width:200px" /> <strong><img alt="" src="http://www.radionet-eu.org/sites/radionet-eu.org/themes/radionet/img/header_EU.jpg" style="height:78px; width:117px" /></strong> </p>
False
Max-Planck-Institut für Radioastronomie, Bonn, Germany
MPI für Radioastronomie
Auf dem Hügel 69
D-53121 Bonn
GERMANY
0.02
2015-11-30T13:00:00
2015-12-02T18:00:00
2015-03-23T18:00:11
2015-12-10T10:43:02
Europe/Berlin
6c9e606df0845ea84b327fc5f7fd6dee
9
false
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0
Invited
Pulsar Studies with RadioAstron
Mr.
ASC LPI
2f5ad4db759f4d288654f7d12466cfbe
Mr.
ASC LPI
2f5ad4db759f4d288654f7d12466cfbe
Dr.
ASC LPI
db3ebb5d33ddfac1bcce8dbb0375a5a1
Dr.
Astro Space Center, Moscow, Russia
838b4f693b554456f3df8a5e009d8ba4
Prof.
Univ California, Santa Barbara
5b5137993d2227eb16b4ce591ce05f1d
Max-Planck-Institut für Radioastronomie, Bonn, Germany
MPI für Radioastronomie
Auf dem Hügel 69
D-53121 Bonn
GERMANY
0.02
2015-11-30T14:10:00
2015-11-30T14:40:00
00:30
On behalf of the Radioastron pulsar group this report presents an overview of the studies which were done with the Radioastron space radio telescope during the first four years of mission operation, including the early and key science programs. Space-VLBI observations of pulsars with the highest angular resolution revealed the new interstellar plasma scattering effects, such as, resolving the substructure in the scattering disk. Diameters of scattering disks were measured for several pulsars and the distances to the effective scattering screens were estimated. Layers of scattering plasma were detected to be located relatively close to the Sun (10-100 pc). Such layers might be responsible for fast flux variations of compact extragalactic radio sources. A new insight on the interstellar scattering was demonstrated by study of the instantaneous visibilities which were measured with the Space-VLBI observations of giant pulses from the Crab pulsar.
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2026-05-14
2026-05-15