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J/AJ/141/105
 NIR-matched quasar catalog (Peth+, 2011)
ReadMe+ftp
Similar Catalogs
Post annotation 		img(gal)
1.J/AJ/141/105/table4NIR-matched quasar catalog (172186 rows)

Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  recno  Record number within the original table (starting from 1) (meta.record)
  Seq   [1/172186] Internal catalog object number (meta.id)
  Name (char) IAU format object name (JHHMMSS.ss+DDMMSS.s) (meta.id;meta.main)
  SDSS (char) SDSS Database ID (meta.id.cross)
  ULAS (char) UKIDSS/ULAS-DR3 MergedSource Database ID (meta.id.cross)
  RAJ2000 deg Right Ascension from SDSS (J2000) (pos.eq.ra;meta.main)
  DEJ2000 deg Declination from SDSS (J2000) (pos.eq.dec;meta.main)
  dRA arcsec (n) RA difference between SDSS & UKIDSS (pos.eq.ra;arith.diff)
  dDE arcsec (n) Dec difference between SDSS & UKIDSS (pos.eq.dec;arith.diff)
  d arcsec (n) [0,1] Angular distance between matching SDSS and UKIDSS objects (sqrt[(dA*cos(DE))2+dDE2]) (pos.angDistance)
  umag mag SDSS u band PSF magnitude in AB system (phot.mag;em.opt.U)

ALL cols		    
(n) indicates a possible blank or NULL column  
  e_umag mag Error in umag (stat.error;phot.mag;em.opt.U)
  gmag mag SDSS g band PSF magnitude in AB system (phot.mag;em.opt.B)
  e_gmag mag Error in gmag (stat.error;phot.mag;em.opt.B)
  rmag mag SDSS r band PSF magnitude in AB system (phot.mag;em.opt.R)
  e_rmag mag Error in rmag (stat.error;phot.mag;em.opt.R)
  imag mag SDSS i band PSF magnitude in AB system (phot.mag;em.opt.I)
  e_imag mag Error in imag (stat.error;phot.mag;em.opt.I)
  zmag mag SDSS z band PSF magnitude in AB system (phot.mag;em.opt.I)
  e_zmag mag Error in zmag (stat.error;phot.mag;em.opt.I)
  Ymag mag (n) [-1/27] or -1 UKIDSS/Y band 2"-aperture magnitude in Vega (phot.mag;em.IR.J)
  e_Ymag mag (n) [-1/10] or -1 Error in Ymag (stat.error;phot.mag;em.opt.B)
  Jmag mag (n) [-1/27] or -1 UKIDSS/J band 2"-aperture magnitude in Vega (phot.mag;em.IR.J)
  e_Jmag mag (n) [-1/10] or -1 Error in Jmag (stat.error;phot.mag;em.IR.J)

ALL cols		    
(n) indicates a possible blank or NULL column  
  Hmag mag (n) [-1/27] or -1 UKIDSS/H band 2"-aperture magnitude in Vega (phot.mag;em.IR.H)
  e_Hmag mag (n) [-1/10] or -1 Error in Hmag (stat.error;phot.mag;em.IR.H)
  Kmag mag (n) [-1/27] or -1 UKIDSS/K band 2"-aperture magnitude in Vega (phot.mag;em.IR.K)
  e_Kmag mag (n) [-1/10] or -1 Error in Kmag (stat.error;phot.mag;em.IR.K)
  Ylim mag (n) Nominal 5σ Y band depth (phot.mag)
  Jlim mag (n) Nominal 5σ J band depth (phot.mag)
  Hlim mag (n) Nominal 5σ H band depth (phot.mag)
  Klim mag (n) Nominal 5σ K band depth (phot.mag)
  zph  (n) Photometric Redshift (src.redshift)
  b_zph  (n) Lower limit on zph (meta.note)
  B_zph  (n) Upper limit on zph (meta.note)
  Prob  (n) [0,1] Probability zph is accurate (stat.probability)
  zsp  (n) Spectroscopic Redshift (src.redshift)
  E(B-V) mag Galactic Extinction (phot.color.excess)
  Sloan  Display the SDSS data for this quasar (meta.ref.url)
  DR6  SDSS data from SDSS-DR6 (meta.ref.url)

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