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J/AJ/131/666      Double-lobed radio quasars from the SDSS     (de Vries+, 2006)

Double-lobed radio quasars from the Sloan Digital Sky Survey. de Vries W.H., Becker R.H., White R.L. <Astron. J., 131, 666-679 (2006)> =2006AJ....131..666D
ADC_Keywords: Active gal. nuclei ; QSOs Keywords: galaxies: active - galaxies: statistics - quasars: emission lines Abstract: We have combined a sample of 44,984 quasars selected from the Sloan Digital Sky Survey (SDSS) Data Release 3 (Cat. II/259) with the FIRST radio survey (Cat. VIII/71). Using a novel technique in which the optical quasar position is matched to the complete radio environment within 450", we are able to characterize the radio morphological make-up of what is essentially an optically selected quasar sample, regardless of whether the quasar (nucleus) itself has been detected in the radio. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table4.dat 23 417 *FR2 Quasar Sample
Note on table4.dat: FR2s are double-lobed sources (Fanaroff & Riley class II objects, 1974MNRAS.167p..31F)
See also: VII/243 : SDSS quasar catalog. III. (Schneider+, 2005) VIII/71 : The FIRST Survey Catalog, Version 03Apr11 (Becker+ 2003) Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 2 I2 h RAh Hour of Right Ascension (J2000) (1) 4- 5 I2 min RAm Minute of Right Ascension (J2000) (1) 7- 11 F5.2 s RAs Second of Right Ascension (J2000) (1) 13 A1 --- DE- Sign of the Declination (J2000) (1) 14- 15 I2 deg DEd Degree of Declination (J2000) (1) 17- 18 I2 arcmin DEm Arcminute of Declination (J2000) (1) 20- 23 F4.1 arcsec DEs Arcsecond of Declination (J2000) (1)
Note (1): Optical position.
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 06-Nov-2006
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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