VLA A-Array Snapshots of a Complete Sample of Texas Radio Interferometer Survey Sources

Astronomy and Astrophysics – Astronomy

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We present VLA A-array 20cm 1485 MHz snapshot images of a complete sample of Texas Radio Interferometer 365 MHz radio sources. The sample was originally defined in 1989 and was imaged by the VLA in 1990. Since then, a greater variety of multiwavelength data have become readily available, including the Sloan Digital Sky Survey and the VLA FIRST Survey (similar in sensitivity but of lower resolution than our data.) Some x-ray and IR coverage exists in places, and IR coverage is also provided by the 2MASS Survey, although this is mainly useful for some of the brighter and nearer sources, and probably does not go faint enough to place good constraints on fainter sources with no obvious optical or IR counterparts. The sample is on the edge of the Virgo Cluster, but also includes objects at much greater distances. A variety of radio morphologies are seen, but many objects have prominent extended single or double lobes or tails. A US NVO-funded research project is underway to study the multiwavelength properties of the sample, and the reduced data will ultimately be VO-accessible. Additional plans include a VO-enabled table of multiwavelength properties for further cross-correlation and exploration.

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