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J/MNRAS/392/19
  The 2dF-SDSS QSO survey (Croom+, 2009)
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2009MNRAS.392...19C
Similar Catalogs
Post annotation 		img(gal)
1.J/MNRAS/392/19/2slaqqso(c)2SLAQ spectroscopic catalogue, built using add_IDs.pl version 1.2 (2008/02/16) (54457 rows)
2.J/MNRAS/392/19/repeats2SLAQ spectroscopic catalogue of objects with repeated observations, built using add_IDs.pl version 1.2 (2008/10/01) (7065 rows)
3.J/MNRAS/392/19/colcomp2SLAQ colour completeness array plot the completeness (915 rows)
4.J/MNRAS/392/19/tablea1(c)The observed 2dF field centres in the 2SLAQ survey with dates observed (99 rows)

Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - )
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Column  Constraint Explain   (UCD)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
   (1+2)Name (char) (i) Source name (JHHMMSS.ss+DDMMSS.s) (not identical to SDSS name) (meta.id;meta.main)
  (1)n_Name (char) r indicates several observations in repeats file (meta.ref.url)
  (1)Pr   [3/6] Configuration priority for 2dF (meta.code)
  (1)Run  SDSS Run number (meta.id)
  (1)Rerun  SDSS Rerun number (meta.id)
  (1)Camcol  SDSS camera number (meta.id)
  (1)Field  SDSS Field number (meta.id)
  (1)ID  SDSS object id within a field (meta.id)
  (1)umag mag SDSS PSF u magnitude (Note 1)   (phot.mag;em.opt.U)
  (1)e_umag mag (n) rms uncertainty on umag (stat.error;phot.mag;em.opt.U)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1+3)gmag mag SDSS PSF g magnitude (Note 1)   (phot.mag;em.opt.B)
  (1)e_gmag mag (n) rms uncertainty on gmag (stat.error;phot.mag;em.opt.B)
  (1)rmag mag SDSS PSF r magnitude (Note 1)   (phot.mag;em.opt.R)
  (1)e_rmag mag (n) rms uncertainty on rmag (stat.error;phot.mag;em.opt.R)
  (1)imag mag SDSS PSF i magnitude (Note 1)   (phot.mag;em.opt.I)
  (1)e_imag mag (n) rms uncertainty on imag (stat.error;phot.mag;em.opt.I)
  (1)zmag mag SDSS PSF z magnitude (Note 1)   (phot.mag;em.opt.I)
  (1)e_zmag mag (n) rms uncertainty on zmag (stat.error;phot.mag;em.opt.I)
  (1)ured mag Extinction in u band (phot.color.excess)
  (1)gred mag Extinction in g band (phot.color.excess)
  (1)rred mag Extinction in r band (phot.color.excess)
  (1)ired mag Extinction in i band (phot.color.excess)
  (1)zred mag Extinction in z band (phot.color.excess)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)S/G  (n) SDSS Bayesian star-galaxy classification probability (meta.code.class;stat.probability)
  (1)Cl   [3,6] SDSS Object image morphology classification. 3 = galaxy, 6 = star (src.class.starGalaxy)
  (1)zem.S  (n) SDSS emission spectroscopic redshift (src.redshift;pos.heliocentric)
  (1)q_zem.S   [0/1] SDSS spectroscopic quality flag, from 0 (bad) to 1 (good) (meta.code.qual)
  (1)ID.S (char) SDSS spectroscopic classification (src.class)
  (1)bj mag (n) 2QZ bJ magnitude (Smith et al. 2005MNRAS.359...57S) (phot.mag;em.opt.B)
  (1)zem2q  (n) 2QZ emission spectroscopic redshift (Croom et al., Cat. VII/241) (src.redshift;pos.heliocentric)
  (1)q_zem2q  (n) 2QZ redshift quality flag (Note 2)   (meta.code.qual)
  (1)ID2q (char) 2QZ spectroscopic classification (src.class)
  (1)q_ID2q  (n) 2QZ ID quality flag (Note 2)   (meta.code.qual)
  (1)2QZ (char) 2QZ name (JHHMMSS.s+DDMMSS, Cat. VII/241) (meta.id)
  (1)z2S  (n) 2SLAQ spectroscopic redshift (src.redshift;pos.heliocentric)
  (1)q_z2S  (n) 2SLAQ redshift quality flag (Note 2)   (meta.code.qual)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)ID2S (char) 2SLAQ spectroscopic ID (i.e. QSO, NELG, star etc.) (src.class)
  (1)q_ID2S  (n) 2SLAQ ID quality flag (Note 2)   (meta.code.qual)
  (1+2+4)Date "Y:M:D" (n) 2SLAQ spectroscopic observation date (time.epoch;obs)
  (1)Fl2S (char) 2SLAQ spectroscopic field (obs.field)
  (1)Fb2S   [0/357] 2SLAQ spectroscopic fibre number (meta.note)
  (1+2)S/N  2SLAQ spectroscopic S/N in a 4000-5000Å band (stat.snr)
  (1+2)dmag mag (n) 2SLAQ (gm mag)-(fibre mag) relative to mean zero point in field (phot.mag)
  (1)FX 10-16W/m2RASS X-ray flux (in 10–13erg/cm2/s) (phot.flux;em.X-ray)
  (1)F1.4 mJy FIRST 1.4 GHz Radio flux (phot.flux.density;em.radio.750-1500MHz)
  (1)n_F1.4   [0/3] FIRST morphology (Note 3)   (meta.note)
  (1+2)Com (char) 2SLAQ comment on spectrum (meta.note)
  (1)DR7 (char) Details from SDSS-DR7 (Adelman-McCarthy et al., Cat. II/294) (meta.ref.url)
  (1)SDSS (char) Display the SDSS data from the SDSS pages (meta.ref.url)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)RAJ2000 deg (i) Right ascension in decimal degrees (J2000) (pos.eq.ra;meta.main)
  (1)DEJ2000 deg (i) Declination in decimal degrees (J2000) (pos.eq.dec;meta.main)
  (2+3)z  2SLAQ spectroscopic redshift (src.redshift)
  (2)q_ID  2SLAQ spectroscopic quality (ID quality) (meta.code.qual)
  (2)q_z  2SLAQ spectroscopic quality (redshift quality) (meta.code.qual;src.redshift)
  (2)ID (char) 2SLAQ spectroscopic ID (i.e. QSO, NELG, star etc.) (meta.id)
  (2+4)Fld (char) 2SLAQ spectroscopic field (obs.field)
  (2)Fbr  2SLAQ spectroscopic fibre number (meta.note)
  (2)N  Number of observations for this object (meta.number)
  (3)Comp   [0,1] Completeness (function of z and gmag) (meta.note)
  (3)gmaghost mag Mean host contribution in terms of mags (g-band) (phot.mag)
  (3)imaghost mag Mean host contribution in terms of mags (i-band) (phot.mag;stat.mean)
  (4)RAJ2000 "h:m:s" (i) Right ascension (J2000) (pos.eq.ra;meta.main)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (4)DEJ2000 "d:m:s" (i) Declination (J2000) (pos.eq.dec;meta.main)
  (4)Nobs1  Primary sample number of 2SLAQ QSO candidates observed (meta.number)
  (4)NQ1  Primary sample number of good quality QSO IDs (ID quality 1) (meta.number)
  (4)Nf11 % Primary sample fraction of good quality IDs (quality 1) for all object types (meta.code.qual)
  (4)NobsA  All number of 2SLAQ QSO candidates observed (meta.number)
  (4)NQA  All number of good quality QSO IDs (ID quality 1) (meta.number)
  (4)Nf1A % All fraction of good quality IDs (quality 1) for all object types (meta.note)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
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