VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .
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VizieR

Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
Target Name (resolved by Sesame) or Position:
 Target dimension:
NB: The epoch used for the query is the original epoch of the table(s)Radius Box size

  
VII/260
  The SDSS-DR7 quasar catalog (Schneider+, 2010)
ReadMe+ftp
2010AJ....139.2360S
Similar Catalogs
Post annotation 		img(gal)
1.VII/260/dr7qso(c)The SDSS quasar catalog V, DR7 (table2 of the paper) (105783 rows)
2.VII/260/table5(c)Quasars lacking CAS (Catalog Archive Server) photometry (207 rows)
Help Xmatch is

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)
   (ALL)SDSS (char) SDSS DR7 object designation (1) linkRole{details from SDSS site} (Note)   (meta.id;meta.main)
   (ALL)z  SDSS redshift (src.redshift)
   (ALL)umag mag (n) BEST SDSS u band PSF magnitude (Note 2)   (phot.mag;em.opt.U)
   (ALL)e_umag mag (n) Error in umag (stat.error;phot.mag;em.opt.U)
   (ALL)gmag mag (n) BEST SDSS g band PSF magnitude (Note 2)   (phot.mag;em.opt.B)
   (ALL)e_gmag mag (n) Error in gmag (stat.error;phot.mag;em.opt.B)
   (ALL)rmag mag (n) BEST SDSS r band PSF magnitude (Note 2)   (phot.mag;em.opt.R)
   (ALL)e_rmag mag (n) Error in rmag (stat.error;phot.mag;em.opt.R)
   (ALL)imag mag (n) BEST SDSS i band PSF magnitude (Note 2)   (phot.mag;em.opt.I)
   (ALL)e_imag mag (n) Error in imag (stat.error;phot.mag;em.opt.I)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
   (ALL)zmag mag (n) BEST SDSS z band PSF magnitude (Note 2)   (phot.mag;em.opt.I)
   (ALL)e_zmag mag (n) Error in zmag (stat.error;phot.mag;em.opt.I)
   (ALL)Au mag Galactic extinction in u filter (Note 3)   (phys.absorption)
  (1)logHI [cm-2] Log of Galactic HI column density (phys.columnDensity;pos.galactic)
  (1)F20cm mag (n) FIRST 20cm peak flux density (Note 4)   (phot.flux.density;em.radio.750-1500MHz)
  (1)w_F20cm  Signal-to-Noise ratio for F20cm (stat.weight)
  (1)sepR arcsec SDSS/FIRST separation (pos;arith.diff)
  (1)logX [ct/s] (n) RASS BSC/FSC full band count rate (Note 5)   (phot.count;em.X-ray)
  (1)w_logX  Signal-to-Noise ratio for logX (stat.weight)
  (1)sepX arcsec SDSS/RASS separation (pos;arith.diff)
  (1)Jmag mag (n) 2MASS J band magnitude (Note 6)   (phot.mag;em.IR.J)
  (1)e_Jmag mag (n) Error in Jmag (stat.error;phot.mag;em.IR.J)
  (1)Hmag mag (n) 2MASS H band magnitude (Note 6)   (phot.mag;em.IR.H)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)e_Hmag mag (n) Error in Hmag (stat.error;phot.mag;em.IR.H)
  (1)Kmag mag (n) 2MASS KS band magnitude (Note 6)   (phot.mag;em.IR.K)
  (1)e_Kmag mag (n) Error in Kmag (stat.error;phot.mag;em.IR.K)
  (1)sepIR arcsec SDSS/2MASS separation (pos;arith.diff)
  (1)f2M   [0/26] 2MASS flags (Note 7)   (meta.code.error)
  (1)iMAG mag Absolute SDSS i band magnitude (Note 8)   (phys.magAbs;em.opt.I)
  (1)D(g-i) mag (n) Offset of quasar (g-i) from distribution (g-i) mode (Note 9)   (stat.fit.residual)
   (ALL)Mph   [0/1] Morphology flag (1=extended source) (src.class.starGalaxy)
  (1)S1   [0/1] SCIENCEPRIMARY flag (1=SCIENCEPRIMARY) (meta.code)
  (1)mode   [0/3] SDSS MODE flag for blends, overlapping scans (Note 10)   (meta.code.class)
  (1)utf   [0/1] Uniform target selection flag (Note 11)   (meta.code)
  (1)TflagB  BEST target selection flag (hexadecimal) (meta.code)
  (1)Lz   [0/1] Low-z Quasar, color selection only, target flag (1=targeted as Low-z Quasar) (meta.code)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)Hz   [0/1] High-z Quasar, color selection only, target flag (1=targeted as High-z Quasar) (meta.code)
  (1)fR   [0/1] FIRST target flag (1=targeted) (meta.code)
  (1)fX   [0/1] ROSAT target flag (1=targeted) (meta.code)
  (1)fS   [0/1] Serendipity target flag (1=targeted) (meta.code)
  (1)f*   [0/1] Star target flag (1=targeted) (meta.code)
  (1)fG   [0/1] Galaxy target flag (1=targeted) (meta.code)
   (ALL)run  SDSS imaging run number for photometric measurements (meta.id)
  (1)MJD-im d Modified Julian Date of imaging observation (time.epoch)
   (ALL)MJD-sp d Modified Julian Date of spectroscopic observation (time.epoch)
   (ALL)Plate  Spectroscopic Plate number (meta.id;instr.plate)
   (ALL)Fiber  Spectroscopic Fiber number (meta.id)
   (ALL)rerun  SDSS Photometric Processing Rerun number (meta.id)
   (ALL)Cam   [1/6] SDSS Camera Column number (meta.id;instr)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)Frame  SDSS Frame number (obs.field)
   (ALL)obj  SDSS Object number (meta.id)
  (1)Tflag  TARGET target selection flag (hexadecimal) (meta.code)
  (1)LzT   [0/1] Low-z Quasar, color selection only, target flag (1=targeted as Low-z Quasar) (meta.code)
  (1)HzT   [0/1] High-z Quasar, color selection only, target flag (1=targeted as High-z Quasar) (meta.code)
  (1)fRT   [0/1] FIRST target flag (1=targeted) (meta.code)
  (1)fXT   [0/1] ROSAT target flag (1=targeted) (meta.code)
  (1)fST   [0/1] Serendipity target flag (1=targeted) (meta.code)
  (1)f*T   [0/1] Star target flag (1=targeted) (meta.code)
  (1)fGT   [0/1] Galaxy target flag (1=targeted) (meta.code)
  (1)uTmag mag (n) TARGET SDSS u band PSF magnitude (Note 2)   (phot.mag;em.opt.U)
  (1)e_uTmag mag (n) Error in uTmag (stat.error;phot.mag)
  (1)gTmag mag (n) TARGET SDSS g band PSF magnitude (Note 2)   (phot.mag;em.opt.B)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)e_gTmag mag (n) Error in gTmag (stat.error;phot.mag)
  (1)rTmag mag (n) TARGET SDSS r band PSF magnitude (Note 2)   (phot.mag;em.opt.R)
  (1)e_rTmag mag (n) Error in rTmag (stat.error;phot.mag)
  (1)iTmag mag (n) TARGET SDSS i band PSF magnitude (Note 2)   (phot.mag;em.opt.I)
  (1)e_iTmag mag (n) Error in iTmag (stat.error;phot.mag)
  (1)zTmag mag (n) TARGET SDSS z band PSF magnitude (Note 2)   (phot.mag;em.opt.I)
  (1)e_zTmag mag (n) Error in zTmag (stat.error;phot.mag)
  (1)prevID (char) Previously published name (Note 12)   (meta.id)
  (1)BH (char) Display the black hole mass estimates from Shen et al. 2008, Cat. J/ApJ/680/169 (meta.ref.url)
  (1)DR7 (char) Display the detailed photometry from SDSS-DR7 (Cat. II/294) (meta.ref.url)
  (1)2MASS (char) Display the 2MASS data (meta.ref.url)
  (1)X (char) Display the X-ray sources closer than 1' (meta.ref.url)
  (1)Radio (char) Display the radio sources closer than 1' (meta.ref.url)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
   (ALL)RAJ2000 deg (i) Right Ascension in decimal degrees (J2000) (pos.eq.ra;meta.main)
   (ALL)DEJ2000 deg (i) Declination in decimal degrees (J2000) (pos.eq.dec;meta.main)
  (2)fPT  Primary Target Flag (meta.code)
  (2)Field  Field identification (meta.id;obs.field)

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