Radio Studies of Objects in the Large Bright Quasar Survey

Details Radio Studies of Objects in the Large Bright Quasar Survey Radio Studies of Objects in the Large Bright Quasar Survey

Dec 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aas...183.6405h&link_type=abstract

American Astronomical Society, 183rd AAS Meeting, #64.05; Bulletin of the American Astronomical Society, Vol. 25, p.1390

Astronomy and Astrophysics

Astronomy

Scientific paper

More than one third of the Large Bright Quasar Survey (LBQS) has been observed at 8.4 GHz with the VLA. There is no correlation between radio luminosity and absolute blue magnitude for -28 < MB < -24, and the radio-loud (8.4 GHz luminosity > 10(25) W Hz(-1) ) fraction (10%) does not depend on absolute blue magnitude. There is some evidence for a substantially increased radio-loud fraction (36%) among objects with MB < -28. The frequency of powerful radio emitters appears to decrease smoothly with decreasing optical luminosity for MB > -24, a result which is probably not a selection effect (98% confidence) and represents a physical change in the radio properties of quasars. This was determined by applying the quantitative LBQS selection criteria to a test spectrum simulating a quasar embedded in a red elliptical host galaxy, in which the quasar and host galaxy have equal MB. The radio-loud fraction among all objects in the radio sample with MB > -24 is 3%. The radio-loud fraction remains constant at ~ 10 % from z = 0.5 to z > 3.5, and there is some evidence that this holds for z < 0.5. The distribution of log R (ratio of radio to optical luminosity) appears to be bimodal, with a gap at log R ~ 1 for all redshifts and absolute magnitudes.

Affiliated with

Also associated with

No associations

Rating

Radio Studies of Objects in the Large Bright Quasar 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 Radio Studies of Objects in the Large Bright Quasar Survey, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radio Studies of Objects in the Large Bright Quasar Survey will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-779644