J/AJ/113/2000 New quasar radio detections (Bischof+ 1997)
Radio observations of 4079 quasars
Bischof O.B., Becker R.H.
<Astron. J. 113, 2000 (1997)>
=1997AJ....113.2000B 1997AJ....113.2000B (SIMBAD/NED BibCode)
ADC_Keywords: QSOs ; Radio sources
Abstract:
Using the NVSS radio catalog, we have searched for radio emission from
4079 quasars taken from the 1996 version of the Veron-Cetty & Veron
[ESO Scientific Report No.X (1996, Cat. VII/188)] 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 9 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 MB shows little dependence fainter than MB=-29.5.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1 45 168 New quasar radio detections
table1.tex 124 351 LaTeX version of table1
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See also:
VII/188 : Quasars and Active Galactic Nuclei (7th Ed.) (Veron+ 1996)
Byte-by-byte Description of file: table1
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Bytes Format Units Label Explanations
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1- 2 I2 h RAh Right ascension (J2000)
4- 5 I2 min RAm Right ascension (J2000)
7- 10 F4.1 s RAs Right ascension (J2000)
12 A1 --- DE- Declination sign
13- 14 I2 deg DEd Declination (J2000)
16- 17 I2 arcmin DEm Declination (J2000)
19- 20 I2 arcsec DEs Declination (J2000)
23- 26 F4.2 --- z Redshift
28- 33 F6.1 mJy S1.4GHz Flux density at 1.4GHz
35- 39 F5.1 mag BMag Absolute B magnitude
42- 45 F4.1 [solLum] log(L8.4) Radio luminosity at 8.4GHz
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Acknowledgements: Otto Bischof
(End) James Marcout, Patricia Bauer [CDS] 10-Oct-1997