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VizieR

Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
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J/AJ/137/3884
  Quasar candidates selected from the SDSS (Richards+, 2009)
ReadMe+ftp
2009AJ....137.3884R
Similar Catalogs
Post annotation 		img(gal)
1.J/AJ/137/3884/catalog(c)Quasar Candidates (tables 5 and 6 of paper) (6138 rows)
2.J/AJ/137/3884/table7(c)XMM-Newton objects in the XFLS area (23 rows)
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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)Q (char) Quasars that meet the Bayesian algorithms (table 5), or meet our flux/magnitude criteria and are in both the Lacy and Stern wedges (table 6) (meta.note)
   (ALL)Seq  (i) [1/6138] Unique catalog number, <[RDL2009] NNNN> in Simbad (meta.id;meta.main)
   (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)
  (1)SDSS (char) SDSS Name (JHHMMSS.SS+DDMMSS.S) (meta.id)
  (1)ID (char) SDSS Object ID (meta.id)
  (1)umag mag SDSS u band PSF asinh magnitude (Note 1)   (phot.mag;em.opt.U)
  (1)e_umag mag Error in umag (stat.error;phot.mag;em.opt.U)
  (1)gmag mag SDSS g band PSF asinh magnitude (Note 1)   (phot.mag;em.opt.B)
  (1)e_gmag mag Error in gmag (stat.error;phot.mag;em.opt.B)

ALL cols		    
 (i)indexed column
  (1)rmag mag SDSS r band PSF asinh magnitude (Note 1)   (phot.mag;em.opt.R)
  (1)e_rmag mag Error in rmag (stat.error;phot.mag;em.opt.R)
  (1)imag mag SDSS i band PSF asinh magnitude (Note 1)   (phot.mag;em.opt.I)
  (1)e_imag mag Error in imag (stat.error;phot.mag;em.opt.I)
  (1)zmag mag SDSS z band PSF asinh magnitude (Note 1)   (phot.mag;em.opt.I)
  (1)e_zmag mag Error in zmag (stat.error;phot.mag;em.opt.I)
  (1)F3.6 uJy Spitzer/IRAC 3.6 micron band flux density (phot.mag;em.IR.3-4um)
  (1)e_F3.6 uJy Error in F3.6 (stat.error)
  (1)F4.5 uJy Spitzer/IRAC 4.5 micron band flux density (phot.mag;em.IR.4-8um)
  (1)e_F4.5 uJy Error in F4.5 (stat.error)
  (1)F5.8 uJy Spitzer/IRAC 5.8 micron band flux density (phot.flux.density;em.IR.4-8um)
  (1)e_F5.8 uJy Error in F5.8 (stat.error)
  (1)F8.0 uJy Spitzer/IRAC 8.0 micron band flux density (phot.flux.density;em.IR.8-15um)

ALL cols		    
 (i)indexed column
  (1)e_F8.0 uJy Error in F8.0 (stat.error)
  (1)Au mag The u band Galactic extinction (Note 2)   (phys.absorption)
  (1)cl   [3/6] SDSS Morphology (6=point, 3=extended) (src.class.starGalaxy)
  (1)wL   [0/1] Lacy wedge region flag (1=in, 0=out) (meta.code)
  (1)wS   [0/1] Stern wedge region flag (1=in, 0=out) (meta.code)
  (1)wSm   [0/1] Modified Stern wedge flag (1=in, 0=out) (meta.code)
  (1)cl8   [0/1] 8-D Bayesian classification (1=in, 0=out) (meta.code.class)
  (1)cl6   [0/1] 6-D Bayesian classification (1=in, 0=out) (meta.code.class)
  (1)zph8  8-D photometric redshift (Note 5)   (src.redshift.phot)
  (1)e_zph8  Lower limit on zph8 (stat.error)
  (1)E_zph8  Upper limit on zph8 (stat.error;stat.max)
  (1)zpr8  8-D photometric redshift range probability (stat.fit.goodness)
  (1)zph6  6-D photometric redshift (Note 5)   (src.redshift.phot)

ALL cols		    
 (i)indexed column
  (1)e_zph6  Lower limit on zph6 (stat.error)
  (1)E_zph6  Upper limit on zph6 (stat.error;stat.max)
  (1)zpr6  6-D photometric redshift range probability (stat.fit.goodness)
  (1)O   [0/1] Optical selection flag (Note 6)   (meta.code)
   (ALL)P-ID (char) Previous catalog identification with morphological type (Note G1)   (meta.code;src.morph)
   (ALL)P-z  Previous catalog object redshift (src.redshift)
  (1)Sloan (char) Display the SDSS data for this quasar (meta.ref.url)
  (1)DR6 (char) Details from the SDSS-DR6 photometry (Cat. II/282) (meta.ref.url)
  (2)XName (char) Name (XHHMMSS.ss+DDMMSS.s) (meta.id;meta.main)
  (2)Exp ks XMM-Newton exposure time (time.duration;obs.exposure)
  (2)Ftot mW/m2 (n) Total flux (phot.flux;em.X-ray)
  (2)Scts ct (n) Soft-band counts (background corrected) (phot.count;em.X-ray)
  (2)Hcts ct (n) Hard-band counts (background corrected) (phot.count;em.X-ray)
  (2)HR  (n) Hardness ratio (phot.flux;arith.ratio)
  (2)e_HR  (n) Error in HR (stat.error)

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