Radio Observations of 4079 Quasars

Details Radio Observations of 4079 Quasars Radio Observations of 4079 Quasars

1997-03-24

arxiv.org/abs/astro-ph/9703156v1

Astronomy and Astrophysics

Astrophysics

25 pages, including 9 figures and 1 table

Scientific paper

10.1086/118412

Using the NVSS radio catalog, we have searched for radio emission from 4079 quasars taken from the 1996 version of the Veron-Cetty and Veron (1996) quasar catalog. The comparison resulted in the positive detection of radio emission from 799 quasars. Of these, 168 are new radio detections. Examination of the radio luminosities shows a dramatic increase in the fraction of radio-loud quasars from the current epoch to z=0.5 and a gradual decline beyond z=1.0. Inspection of the radio-loud fraction as a function of M_B shows little dependence fainter than M_B=-29.5.

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