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The potential for a Ka-band (32 GHz) worldwide VLBI network

Show simple item record Jacobs, C. S. Bach, U. Colomer, F. Garcia-Miro, C. Gomez-Gonzalez, J. Gulyaev, S. Horiuchi, S. Ichikawa, R. Kraus, A. Kronschnabl, G. Lopez-Fernandez, J. A. Lovell, J. Majid, W. Natusch, T. Neidhardt, A. Phillips, C. Porcas, R. Romero-Wolf, A. Saldana, L. Schreiber, U. Sotuela, I. Takeuchi, H. Trinh, J. Tzioumis, A. de Vincente, P. Zharov, V. Saldana, L. en_US 2012-12-13T14:57:55Z 2012-12-13T14:57:55Z 2012-03-05
dc.identifier.citation IVS General Meeting Proceedings, Madrid, Spain, March 5-8, 2012 en_US
dc.identifier.clearanceno 12-2592
dc.description.abstract Ka-band (32 GHz, 9mm) Very Long Baseline Interferometric (VLBI) networking has now begun and has tremendous potential for expansion over the next few years. Ka-band VLBI astrometry from NASA's Deep Space Network has already developed a catalog of 470 observable sources with highly accurate positions. Now, several antennas worldwide are planning or are considering adding Ka-band VLBI capability. Thus, there is now an opportunity to create a worldwide Ka-band network with potential for high resolution imaging and astrometry. With baselines approaching a Giga-lambda, a Ka-band network would be able to probe source structure at the nano-radian (200 as) level ( 100X better than Hubble) and thus gain insight into the astrophysics of the most compact regions of emission in active galactic nuclei. We discuss the advantages of Ka-band, show the known sources and candidates, simulate projected baseline (uv) coverage, and discuss potential radio frequency feeds. The combination of these elements demonstrates the feasibility of a worldwide Ka network within the next few years! en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012. en_US
dc.subject Very Long Baseline Interferometric (VLBI) en_US
dc.subject Ka-band en_US
dc.subject 32 GHz en_US
dc.subject synthesis imaging en_US
dc.subject astrometry en_US
dc.subject quasar en_US
dc.subject Active Galactic Nuclei en_US
dc.subject phase arraying en_US
dc.subject X/Ka feed en_US
dc.subject S/X/Ka feeds en_US
dc.title The potential for a Ka-band (32 GHz) worldwide VLBI network en_US
dc.type Preprint en_US
dc.subject.NASATaxonomy Astrophysics en_US

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