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A 50 MHz system for GMRT

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dc.contributor.authorShankar, N Udaya
dc.contributor.authorDwarakanath, K S
dc.contributor.authorAmiri, Shahram
dc.contributor.authorSomashekar, R
dc.contributor.authorGirish, B S
dc.contributor.authorWences, Laus
dc.contributor.authorNayak, Arvind
dc.date.accessioned2011-08-23T09:49:31Z
dc.date.available2011-08-23T09:49:31Z
dc.date.issued2009-09
dc.descriptionRestricted Access. Proceedings of the conference held 8-12 December 2008, at National Centre for Radio Astrophysics (NCRA), TIFR, Pune, India. Edited by D. J. Saikia, D. A. Green, Y. Gupta, and T. Venturi. San Francisco: Astronomical Society of the Pacific.en
dc.description.abstractThis paper describes a 50 MHz system being developed for GMRT to provide imaging capability in the frequency range 30−90 MHz. Due to its larger collecting area and higher antenna efficiency, the low-frequency GMRT system will be several times more sensitive than the present 74 MHz VLA system and is likely to remain a competitive instrument in this frequency band. In the first phase of this project, receiver systems consisting of V-dipole feeds and front-ends have been installed on four of the thirty GMRT antennas. Test observations were carried out on a number of bright 3CR sources. The initial results are encouraging. This paper will also describe results of simultaneous observations carried out using the existing GMRT correlator, the new GMRT software correlator and a system employing digitization and direct recording of signals at two antenna bases.en
dc.identifier.citationASP Conference Series, 2009, Vol.407, p393en
dc.identifier.urihttp://hdl.handle.net/2289/4123
dc.language.isoenen
dc.publisherAstronomical Society of the Pacificen
dc.relation.urihttp://adsabs.harvard.edu/abs/2009ASPC..407..393Uen
dc.rights2009 Astronomical Society of the Pacific.en
dc.titleA 50 MHz system for GMRTen
dc.typeArticleen

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