VizieR Search Page [Back] ⋅ [Forwd] ⋅ [Print] ⋅ [Close]
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

  
J/ApJS/219/39
  QSOs selection from SDSS and WISE (Richards+, 2015)
ReadMe+ftp
2015ApJS..219...39R
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJS/219/39/master(c)*Master quasar catalog (table 1) (original column names in green) (Note) (1604577 rows)
2.J/ApJS/219/39/cand(c)*Optical+MIR photometric quasar candidates catalog (table 2) (Note) (885503 rows)
Help Xmatch is

Simple ConstraintList Of Constraints
 
Standard Original
Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortJoin tables
more join
Column  Constraint Explain   (UCD)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
   (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)C  (n)Link to photometry details for this QSO candidate (meta.ref.url)
  (1)Run   [94/8162] SDSS run number (Note 1)   (meta.id;meta.main)
  (1)Rerun   [301] SDSS rerun number (meta.id;obs)
  (1)Camcol   [1/6] SDSS camera column (meta.id;instr)
  (1)Field   [11/999] SDSS field number (meta.id;obs.field)
  (1)ID   [1/8138] SDSS ID number within the field (meta.id;obs.field)
  (1)OT   [3/6] SDSS object type (stellar=3, extended=6) (OBJC_TYPE) (src.class)
  (1)Flags  SDSS object flags (OBJC_FLAGS) (Note 2)   (meta.code.error)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)Flags2  SDSS object flags (OBJC_FLAGS2) (meta.code.error)
   (ALL)Au mag [0.01/6.2] Magnitudes of Galactic extinction in u-band (EXTINCTION_U) (phys.absorption)
  (1)Ag mag [0.009/4.6] Magnitudes of Galactic extinction in g-band (EXTINCTION_G) (phys.absorption)
  (1)Ar mag [0.006/3.3] Magnitudes of Galactic extinction in r-band (EXTINCTION_R) (phys.absorption)
  (1)Ai mag [0.005/2.5] Magnitudes of Galactic extinction in i-band (EXTINCTION_I) (phys.absorption)
  (1)Az mag [0.003/1.8] Magnitudes of Galactic extinction in i-band (EXTINCTION_Z) (phys.absorption)
  (1)Fupsf   [-27.7/2882.1] PSF flux in u-band (PSFFLUX_U) (phot.mag;em.opt.U)
  (1)Fgpsf   [-10.9/8313] PSF flux in g-band (PSFFLUX_G) (phot.mag;em.opt.B)
  (1)Frpsf   [-0.6/11314.1] PSF flux in r-band (PSFFLUX_R) (phot.mag;em.opt.R)
  (1)Fipsf   [-31.1/12356.4] PSF flux in i-band (PSFFLUX_I) (phot.mag;em.opt.I)
  (1)Fzpsf   [-2.1/12640.6] PSF flux in z-band (PSFFLUX_Z) (phot.mag;em.opt.I)
  (1)IVFu   [0/232.2] Inverse variance of point-spread function flux in u-band (PSFFLUX_IVAR_U) (phot.mag;em.opt.U)
  (1)IVFg   [0/645.8] Inverse variance of point-spread function flux in g-band (PSFFLUX_IVAR_G) (phot.mag;em.opt.B)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)IVFr   [0/307.8] Inverse variance of point-spread function flux in r-band (PSFFLUX_IVAR_R) (phot.mag;em.opt.R)
  (1)IVFi   [0/106.8] Inverse variance of point-spread function flux in i-band (PSFFLUX_IVAR_I) (phot.mag;em.opt.I)
  (1)IVFz   [0/8] Inverse variance of point-spread function flux in z-band (PSFFLUX_IVAR_Z) (phot.mag;em.opt.I)
  (1)CoAFu  (n) [-6.5/2882.1] Co-added point-spread function flux in u-band (PSFFLUX_CLEAN_U) (phot.mag;em.opt.U)
  (1)CoAFg  (n) [-11/8313] Co-added point-spread function flux in g-band (PSFFLUX_CLEAN_G) (phot.mag;em.opt.B)
  (1)CoAFr  (n) [-3/11314.1] Co-added point-spread function flux in r-band (PSFFLUX_CLEAN_R) (phot.mag;em.opt.R)
  (1)CoAFi  (n) [-4.4/12356.4] Co-added point-spread function flux in i-band (PSFFLUX_CLEAN_I) (phot.mag;em.opt.I)
  (1)CoAFz  (n) [-19.8/12640.6] Co-added point-spread function flux in z-band (PSFFLUX_CLEAN_Z) (phot.mag;em.opt.I)
  (1)IVCoAFu   [0/722.2] Inverse variance of co-added point-spread function flux in u-band (PSFFLUX_CLEAN_IVAR_U) (phot.mag;em.opt.U)
  (1)IVCoAFg   [0/2902] Inverse variance of co-added point-spread function flux in g-band (PSFFLUX_CLEAN_IVAR_G) (phot.mag;em.opt.B)
  (1)IVCoAFr   [0/1215.2] Inverse variance of co-added point-spread function flux in r-band (PSFFLUX_CLEAN_IVAR_R) (phot.mag;em.opt.R)
  (1)IVCoAFi   [0/579.1] Inverse variance of co-added point-spread function flux in i-band (PSFFLUX_CLEAN_IVAR_I) (phot.mag;em.opt.I)
  (1)IVCoAFz   [0/36] Inverse variance of co-added point-spread function flux in z-band (PSFFLUX_CLEAN_IVAR_Z) (phot.mag;em.opt.I)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)f_CoAFu   [0/35] Flag indicating whether co-added (CLEAN) flux should be used (PSF_CLEAN_NUSE_U) (meta.code)
  (1)f_CoAFg   [0/35] Flag indicating whether co-added (CLEAN) flux should be used (PSF_CLEAN_NUSE_G) (meta.code)
  (1)f_CoAFr   [0/35] Flag indicating whether co-added (CLEAN) flux should be used (PSF_CLEAN_NUSE_R) (meta.code)
  (1)f_CoAFi   [0/35] Flag indicating whether co-added (CLEAN) flux should be used (PSF_CLEAN_NUSE_I) (meta.code)
  (1)f_CoAFz   [0/35] Flag indicating whether co-added (CLEAN) flux should be used (PSF_CLEAN_NUSE_Z) (meta.code)
  (1)zBest1  (n) [0.06/5.5] First zBest value (ZBEST1) (src.redshift.phot)
  (1)zBest2  (n) [0.1/3.6] Second zBest value (ZBEST2) (src.redshift.phot)
  (1)zBest3  (n) [0.06/4.9] Third zBest value (ZBEST3) (src.redshift.phot)
  (1)zBest4  (n) [0.1/5.2] Fourth zBest value (ZBEST4) (src.redshift.phot)
  (1)zBest5  (n) [-8/5] Fifth zBest value (ZBEST5) (src.redshift.phot)
  (1)zBest6  (n) [0.1/4.2] Sixth zBest value (ZBEST6) (src.redshift.phot)
  (1)zBest7  (n) [5.7/6.5] Seventh zBest value (ZBEST7) (src.redshift.phot)
  (1)zBest8  (n) [0.03/5.9] Eighth zBest value (ZBEST8) (src.redshift.phot)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)zBest9  (n) [0.1/3.9] Ninth zBest value (ZBEST9) (src.redshift.phot)
  (1)zBest10  (n) [-1/6.3] Tenth zBest value (ZBEST10) (src.redshift.phot)
  (1)zBest11  (n) [0.3/5.5] Eleventh zBest value (ZBEST11) (src.redshift.phot)
  (1)zBest12  (n) [0.07/3.6] Twelfth zBest value (ZBEST12) (src.redshift.phot)
  (1)zBest13  (n) [3.8/5.1] Thirteenth zBest value (ZBEST13) (src.redshift.phot)
  (1)zBest14  (n) [0.1/4.2] Fourtheenth zBest value (ZBEST14) (src.redshift.phot)
  (1)r_zBest   [1/10113] Redshift source flag (SOURCEBIT) (Note 3)   (meta.ref;pos.frame)
   (ALL)Uni   [0/1] Indicates whether the SDSS object fell in the "uniform" selection area (SDSS_UNIFORM) (Note 4)   (meta.code)
  (1)QSO   [0/1] AGES flag (AGES_QSO) (Note 5)   (meta.code)
  (1)Code06   [-782208/786384] AGES flag (AGES_CODE06) (Note 5)   (meta.code)
  (1)zphlo   [-1/6] Minimum photometric redshift (KDE_ZPHOTLO) (Note 6)   (src.redshift.phot)
  (1)zphhi   [-1/6.5] Maximum photometric redshift (KDE_ZPHOTHI) (Note 6)   (src.redshift.phot)
  (1)zphP   [-1/1] Photometric redshift probability (6) (KDE_ZPHOTPROB) (stat.fit.goodness)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)UV?   [0/1] Flag indicating a UV-excess or low-redshift source (KDE_LOWZORUVX) (Note 6)   (meta.code)
  (1)zpkP   [0/1] Peak of the redshift probability (XDQSOZ_PEAKPROB) (Note 7)   (stat.fit.goodness)
  (1)zpkFWHM   [0/3.2] FWHM of the redshift peak (7) (XDQSOZ_PEAKFWHM) (stat.error)
  (1)Npk   [0/8] Number of peaks in photo-z distribution (XDQSOZ_NPEAKS) (Note 7)   (meta.number)
   (ALL)Sloan (char) Display the online SDSS data for the nearest object (meta.ref.url)
  (2)Class (char) Spectral classification (QSO, GALAXY, STAR, CELG, ??, or U) (Note 1)   (src.class)
  (2)zsp  (n) [0/6.7] Spectroscopic redshift (src.redshift)
  (2)umag mag [15/31.7] SDSS u-band AB magnitude, corrected for Galactic extinction (phot.mag;em.opt.U)
  (2)e_umag mag (n) [0.003/99.99] Error on u-band magnitude (stat.error;phot.mag;em.opt.U)
  (2)gmag mag [15/27.4] SDSS g-band AB magnitude, corrected for Galactic extinction (phot.mag;em.opt.B)
  (2)e_gmag mag [0.003/44] Error on g-band magnitude (stat.error;phot.mag;em.opt.B)
  (2)rmag mag [15/25.9] SDSS r-band AB magnitude, corrected for Galactic extinction (phot.mag;em.opt.R)
  (2)e_rmag mag [0.002/18] Error on r-band magnitude (stat.error;phot.mag;em.opt.R)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)imag mag [14.9/25] SDSS i-band AB magnitude, corrected for Galactic extinction (phot.mag;em.opt.I)
  (2)e_imag mag [0.002/21] Error on i-band magnitude (stat.error;phot.mag;em.opt.I)
  (2)zmag mag [15/24.5] SDSS z-band AB magnitude, corrected for Galactic extinction (phot.mag;em.opt.I)
  (2)e_zmag mag [0.003/16] Error on z-band magnitude (stat.error;phot.mag;em.opt.I)
  (2)3.6mag mag [12.8/23.8] 3.6um AB magnitude, corrected for Galactic extinction (phot.mag;em.IR.3-4um)
  (2)e_3.6mag mag [0.02/0.7] Error on 3.6um magnitude (stat.error)
  (2)4.5mag mag [12.5/24.2] 4.5um AB magnitude, corrected for Galactic extinction (phot.mag;em.IR.4-8um)
  (2)e_4.5mag mag [0.01/0.7] Error on 4.5um magnitude (stat.error)
  (2)Fu 3.63uJy [-101/810] SDSS u-band flux density in nanomaggies (phot.mag;em.opt.U)
  (2)e_Fu 3.63uJy [0.04/100] Error in u-band flux density (stat.error)
  (2)Fg 3.63uJy [-1/759] SDSS g-band flux density in nanomaggies (phot.mag;em.opt.B)
  (2)e_Fg 3.63uJy [0.02/54] Error in g-band flux density (stat.error)
  (2)Fr 3.63uJy [-0.3/805] SDSS r-band flux density in nanomaggies (phot.mag;em.opt.R)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)e_Fr 3.63uJy [0.03/86] Error in r-band flux density (stat.error)
  (2)Fi 3.63uJy [-0.3/979] SDSS i-band flux density in nanomaggies (phot.mag;em.opt.I)
  (2)e_Fi 3.63uJy [0.04/163] Error in i-band flux density (stat.error)
  (2)Fz 3.63uJy [-4/945] SDSS z-band flux density in nanomaggies (phot.mag;em.opt.I)
  (2)e_Fz 3.63uJy [0.1/129] Error in z-band flux density (stat.error)
  (2)F3.6 uJy [1.1/25966] 3.6um flux density in microJy (phot.mag;em.IR.3-4um)
  (2)e_F3.6 uJy [0.09/551] Error in 3.6um flux density (stat.error)
  (2)F4.5 uJy [0.8/35613] 4.5um flux density in microJy (phot.mag;em.IR.4-8um)
  (2)e_F4.5 uJy [0.1/656] Error in 4.5um flux density (stat.error)
  (2)Ymag mag (n) [14.6/26] Y-band Vega magnitude from UKIDSS or VHS (Note 2)   (phot.mag;em.IR.J)
  (2)e_Ymag mag (n) [0.003/46] Error in Y-band magnitude (stat.error;phot.mag;em.opt.B)
  (2)Jmag mag (n) [13.9/21] J-band Vega magnitude from UKIDSS or VHS (Note 2)   (phot.mag;em.IR.J)
  (2)e_Jmag mag (n) [0.002/0.5] Error in J-band magnitude (stat.error;phot.mag;em.IR.J)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)Hmag mag (n) [13.2/20.3] H-band Vega magnitude from UKIDSS or VHS (Note 2)   (phot.mag;em.IR.H)
  (2)e_Hmag mag (n) [0.002/0.6] Error in H-band magnitude (stat.error;phot.mag;em.IR.H)
  (2)Kmag mag (n) [11.8/19.6] K-band Vega magnitude from UKIDSS or VHS (Note 2)   (phot.mag;em.IR.K)
  (2)e_Kmag mag (n) [0.001/0.7] Error in K-band magnitude (stat.error;phot.mag;em.IR.K)
  (2)FUV mag (n) [13.7/24.8] GALEX FUV magnitude (AB) (phot.mag;em.UV.100-200nm)
  (2)e_FUV mag (n) [0.008/0.6] Error in FUV magnitude (stat.error)
  (2)NUV mag (n) [13.8/24.8] GALEX NUV magnitude (AB) (phot.mag;em.UV)
  (2)e_NUV mag (n) [0.004/0.5] Error in NUV magnitude (stat.error)
  (2)gisig  (n) [-1/1] Indicator of distance from mean g-i color at ZHOTBEST (GI_SIGMA) (stat.fit.param)
  (2)den*   [0/1.2] Star density from KDE algorithm (stat.fit.param)
  (2)denq   [0/402] Quasar density from KDE algorithm (stat.fit.param)
  (2)b_zphO   [0/100] Minimum photometric redshift [ugriz] (src.redshift.phot;stat.min)
  (2)zphO   [0.005/100] Best photometric redshift [ugriz] (ZPHOTBEST) (src.redshift.phot)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)B_zphO   [0.01/100] Maximum photometric redshift [ugriz] (src.redshift.phot;stat.max)
  (2)zphOP   [0.005/100] Probability of ZPHOTBEST being between min and max (ZPHOTPROB) (stat.fit.goodness)
  (2)b_zphIR  (n) [0/6] Minimum photometric redshift [ugrizJHK] (src.redshift.phot;stat.min)
  (2)zphIR  (n) [0.05/6.3] Best photometric redshift (ugrizJHK) (ZPHOTBESTJHK) (src.redshift.phot)
  (2)B_zphIR  (n) [0.02/6.3] Maximum photometric redshift (ugrizJHK) (ZPHOTMAXJHK) (src.redshift.phot;stat.max)
  (2)zphIRP  (n) [0.2/1] Probability of ZPHOTBESTJHK being between min and max (ZPHOTPROBJHK) (stat.fit.goodness)
  (2)Leg   [0/1] Indicates if object is in the SDSS Legacy footprint (meta.code)
  (2)Prim   [0/673192456] SDSS primary target selection flag; see Richards et al. (2002AJ....123.2945R) (meta.code)
  (2)pm mas/yr (n) [0.005/193] Proper motion in milliarcseconds per year (pos.pm)
  (2)DB   [1/7] Bitwise flag indicating low-z (20), mid-z (21), and high-z (22) sources (meta.code)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
Adapt form
 Display your selection only Reset to default columns
usage  Display UCD1+    UCD1  
elapse time 1