The Impact of Minimal Ground Antenna Coverage on the VSOP Survey

Details The Impact of Minimal Ground Antenna Coverage on the VSOP Survey The Impact of Minimal Ground Antenna Coverage on the VSOP Survey

Apr 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aprs.conf..189l&link_type=abstract

Astrophysical Phenomena Revealed by Space VLBI, Proceedings of the VSOP Symposium, held at the Institute of Space and astronauti

Astronomy and Astrophysics

Astrophysics

2

Scientific paper

The VSOP survey consists of 5 GHz space-VLBI observations of over two hundred active galactic nuclei using the HALCA satellite and various telescopes located around the world. Generally only a few ground telescopes participate in any given observation, which results in poor coverage of the (u,v) plane. By making comparisons with datasets using a full array of ground antennas, we find that the VSOP survey data can be used to obtain reliable brightness temperature measurements of strong components in AGN jets. The images, however, are of low dynamic range, and are not well-suited for detailed statistical studies of jet morphology.

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