A Study of Quasar Radio Emission from the VLA FIRST Survey

Details A Study of Quasar Radio Emission from the VLA FIRST Survey A Study of Quasar Radio Emission from the VLA FIRST Survey

1999-06-25

arxiv.org/abs/astro-ph/9906408v1

Astron.J. 118 (1999) 1435

Astronomy and Astrophysics

Astrophysics

33 pages LaTeX, 10 figures, 2 tables. Accepted in the Astronomical Journal

Scientific paper

10.1086/301046

Using the most recent (1998) version of the VLA FIRST survey radio catalog, we have searched for radio emission from 1704 quasars taken from the most recent (1993) version of the Hewitt and Burbidge quasar catalog. These quasars lie in the ~5000 square degrees of sky already covered by the VLA FIRST survey. Our work has resulted in positive detection of radio emission from 389 quasars of which 69 quasars have been detected for the first time at radio wavelengths. We find no evidence of correlation between optical and radio luminosities for optically selected quasars. We find indications of a bimodal distribution of radio luminosity, even at a low flux limit of 1 mJy. We show that radio luminosity is a good discriminant between radio loud and radio quiet quasar populations, and that it may be inappropriate to make such a division on the basis of the radio to optical luminosity ratio. We discuss the dependence of the radio loud fraction on optical luminosity and redshift.

Affiliated with

Also associated with

No associations

Rating

A Study of Quasar Radio Emission from the VLA FIRST Survey does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A Study of Quasar Radio Emission from the VLA FIRST Survey, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Study of Quasar Radio Emission from the VLA FIRST Survey will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-507678