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J/AJ/130/873    Properties of BQS objects in the SDSS DR3 area   (Jester+, 2005)

The Sloan Digital Sky Survey view of the Palomar-Green Bright Quasar Survey. Jester S., Schneider D.P., Richards G.T., Green R.F., Schmidt M., Hall P.B., Strauss M.A., Vanden Berk D.E., Stoughton C., Gunn J.E., Brinkmann J., Kent S.M., Smith J.A., Tucker D.L., Yanny B. <Astron. J., 130, 873-895 (2005)> =2005AJ....130..873J
ADC_Keywords: QSOs ; Photometry, SDSS ; Photometry, ugriz Keywords: catalogs - galaxies: active - quasars: emission lines - quasars: general - surveys Abstract: We investigate the extent to which the Palomar-Green (PG) Bright Quasar Survey (BQS) is complete and representative of the general quasar population by comparing it with imaging and spectroscopy from the Sloan Digital Sky Survey (SDSS). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 117 52 Properties of BQS objects in the SDSS DR3 area
See also: II/207 : Palomar-Green catalog UV-excess stellar objects (Green+ 1986) II/259 : The SDSS Photometric Catalog, Release 3 (Abazajian+ 2005) Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 7 A7 --- PG PG (Palomar-Green) name 9- 10 I2 h RAh Hour of Right Ascension (J2000.0) 12- 13 I2 min RAm Minute of Right Ascension (J2000.0) 15- 19 F5.2 s RAs Second of Right Ascension (J2000.0) 20 A1 --- DE- Sign of the Declination (J2000.0) 21- 22 I2 deg DEd Degree of Declination (J2000.0) 24- 25 I2 arcmin DEm Arcminute of Declination (J2000.0) 27- 31 F5.2 arcsec DEs Arcsecond of Declination (J2000.0) 33- 37 F5.2 mag umag SDSS u magnitude 39- 43 F5.2 mag gmag SDSS g magnitude 45- 49 F5.2 mag rmag SDSS r magnitude 51- 55 F5.2 mag imag SDSS i magnitude 57- 61 F5.2 mag Bmag1 PG B magnitude (measured) 63- 67 F5.2 mag Bmag2 B magnitude (calculated from SDSS photometry) 69- 73 F5.2 mag (U-B)1 ? PG (U-B) color index 75- 79 F5.2 mag (U-B)2 (U-B) color index 81- 84 I4 --- phFlg SDSS photometry flag (1) 86- 89 I4 --- tFlg SDSS target flag (2) 91- 94 I4 --- Plate ? Plate number 96-100 I5 --- ObsDate ? Date of observation in MJD (JD-2400000.5) 103-105 I3 --- Fiber ? Fiber number 107-111 F5.3 --- z1 ? SDSS redshift 113-117 F5.3 --- z2 BQS redshift
Note (1): Set of flags that give additional information about SDSS photometry selection in the BEST version of the photometric catalogs. Phot contains information (in this order) on whether the source was: a point source, saturated in any of the SDSS bands, had a fatal cosmetic error in quasar target selection, and had a nonfatal cosmetic error in quasar target selection. Note (2): Set of flags that give additional information about SDSS target selection in the BEST version of the photometric catalogs. Target contains information on whether the object was: - flagged as a quasar candidate by color selection but is too bright to be observed with the spectrograph, - targeted as FIRST (Cat. VIII/71) source, - targeted by color selection, - and finally a "completeness" flag (This completeness flag is the logical OR of the flags indicating a fatal or nonfatal cosmetic error, of those identifying the object as color- or FIRST- selected target, and of the flag indicating a color-selected target that is too bright for inclusion in the spectroscopic survey): --> 0 if an object had neither been recognized as a quasar target nor rejected only because of cosmetic problems, causing the object to be missed by SDSS target selection; --> 1 for all objects in the table, indicating that every BQS quasar was either targeted or we understand why it was not targeted.
History: From electronic version of the journal
(End) Marianne Brouty [CDS] 27-Oct-2005
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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