VizieR

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VizieR

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J/ApJS/219/39/cand QSOs selection from SDSS and WISE (Richards+, 2015)
*Optical+MIR photometric quasar candidates catalog (table 2) (885503 rows)
  recno=275141
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ColumnValue  Explain   (UCD)
_RAJ200009 32 16.83093 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEJ2000+02 51 40.2300 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_RAB195009 29 40.98139 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEB1950+03 04 57.7610 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_Glon231.05190602 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat+36.62825251 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)
275141recno 275141  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

RAJ2000143.070129 deg (i) Right ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+02.861175 deg (i) Declination (J2000) (pos.eq.dec;meta.main)
ClassU  Spectral classification (QSO, GALAXY, STAR, CELG, ??, or U) (Note 1)   (src.class)
zsp    [0/6.7] Spectroscopic redshift (src.redshift)
umag23.213 mag [15/31.7] SDSS u-band AB magnitude, corrected for Galactic extinction (phot.mag;em.opt.U)
e_umag 0.331 mag [0.003/99.99] Error on u-band magnitude (stat.error;phot.mag;em.opt.U)
gmag21.664 mag [15/27.4] SDSS g-band AB magnitude, corrected for Galactic extinction (phot.mag;em.opt.B)
e_gmag 0.060 mag [0.003/44] Error on g-band magnitude (stat.error;phot.mag;em.opt.B)
rmag21.704 mag [15/25.9] SDSS r-band AB magnitude, corrected for Galactic extinction (phot.mag;em.opt.R)
e_rmag 0.082 mag [0.002/18] Error on r-band magnitude (stat.error;phot.mag;em.opt.R)
imag21.479 mag [14.9/25] SDSS i-band AB magnitude, corrected for Galactic extinction (phot.mag;em.opt.I)
e_imag 0.095 mag [0.002/21] Error on i-band magnitude (stat.error;phot.mag;em.opt.I)
zmag21.254 mag [15/24.5] SDSS z-band AB magnitude, corrected for Galactic extinction (phot.mag;em.opt.I)
e_zmag 0.269 mag [0.003/16] Error on z-band magnitude (stat.error;phot.mag;em.opt.I)
3.6mag19.461 mag [12.8/23.8] 3.6um AB magnitude, corrected for Galactic extinction (phot.mag;em.IR.3-4um)
e_3.6mag 0.118 mag [0.02/0.7] Error on 3.6um magnitude (stat.error)
4.5mag18.992 mag [12.5/24.2] 4.5um AB magnitude, corrected for Galactic extinction (phot.mag;em.IR.4-8um)
e_4.5mag 0.138 mag [0.01/0.7] Error on 4.5um magnitude (stat.error)
Fu 0.38 3.63uJy [-101/810] SDSS u-band flux density in nanomaggies (phot.mag;em.opt.U)
e_Fu 0.14 3.63uJy [0.04/100] Error in u-band flux density (stat.error)
Fg 1.86 3.63uJy [-1/759] SDSS g-band flux density in nanomaggies (phot.mag;em.opt.B)
e_Fg 0.10 3.63uJy [0.02/54] Error in g-band flux density (stat.error)
Fr 1.87 3.63uJy [-0.3/805] SDSS r-band flux density in nanomaggies (phot.mag;em.opt.R)
e_Fr 0.14 3.63uJy [0.03/86] Error in r-band flux density (stat.error)
Fi 2.36 3.63uJy [-0.3/979] SDSS i-band flux density in nanomaggies (phot.mag;em.opt.I)
e_Fi 0.21 3.63uJy [0.04/163] Error in i-band flux density (stat.error)
Fz 2.79 3.63uJy [-4/945] SDSS z-band flux density in nanomaggies (phot.mag;em.opt.I)
e_Fz 0.78 3.63uJy [0.1/129] Error in z-band flux density (stat.error)
F3.6 59.10 uJy [1.1/25966] 3.6um flux density in microJy (phot.mag;em.IR.3-4um)
e_F3.6 6.42 uJy [0.09/551] Error in 3.6um flux density (stat.error)
F4.5 91.12 uJy [0.8/35613] 4.5um flux density in microJy (phot.mag;em.IR.4-8um)
e_F4.5 11.58 uJy [0.1/656] Error in 4.5um flux density (stat.error)
Ymag  mag [14.6/26] Y-band Vega magnitude from UKIDSS or VHS (Note 2)   (phot.mag;em.IR.J)
e_Ymag  mag [0.003/46] Error in Y-band magnitude (stat.error;phot.mag;em.opt.B)
Jmag  mag [13.9/21] J-band Vega magnitude from UKIDSS or VHS (Note 2)   (phot.mag;em.IR.J)
e_Jmag  mag [0.002/0.5] Error in J-band magnitude (stat.error;phot.mag;em.IR.J)
Hmag  mag [13.2/20.3] H-band Vega magnitude from UKIDSS or VHS (Note 2)   (phot.mag;em.IR.H)
e_Hmag  mag [0.002/0.6] Error in H-band magnitude (stat.error;phot.mag;em.IR.H)
Kmag  mag [11.8/19.6] K-band Vega magnitude from UKIDSS or VHS (Note 2)   (phot.mag;em.IR.K)
e_Kmag  mag [0.001/0.7] Error in K-band magnitude (stat.error;phot.mag;em.IR.K)
FUV  mag [13.7/24.8] GALEX FUV magnitude (AB) (phot.mag;em.UV.100-200nm)
e_FUV  mag [0.008/0.6] Error in FUV magnitude (stat.error)
NUV21.982 mag [13.8/24.8] GALEX NUV magnitude (AB) (phot.mag;em.UV)
e_NUV 0.326 mag [0.004/0.5] Error in NUV magnitude (stat.error)
gisig-0.7   [-1/1] Indicator of distance from mean g-i color at ZHOTBEST (GI_SIGMA) (stat.fit.param)
Au 0.25 mag [0.01/1] Extinction in SDSS u band (phys.absorption)
den* 0.00   [0/1.2] Star density from KDE algorithm (stat.fit.param)
denq 0.00   [0/402] Quasar density from KDE algorithm (stat.fit.param)
b_zphO 0.410   [0/100] Minimum photometric redshift [ugriz] (src.redshift.phot;stat.min)
zphO 0.665   [0.005/100] Best photometric redshift [ugriz] (ZPHOTBEST) (src.redshift.phot)
B_zphO 0.890   [0.01/100] Maximum photometric redshift [ugriz] (src.redshift.phot;stat.max)
zphOP 0.890   [0.005/100] Probability of ZPHOTBEST being between min and max (ZPHOTPROB) (stat.fit.goodness)
b_zphIR    [0/6] Minimum photometric redshift [ugrizJHK] (src.redshift.phot;stat.min)
zphIR    [0.05/6.3] Best photometric redshift (ugrizJHK) (ZPHOTBESTJHK) (src.redshift.phot)
B_zphIR    [0.02/6.3] Maximum photometric redshift (ugrizJHK) (ZPHOTMAXJHK) (src.redshift.phot;stat.max)
zphIRP    [0.2/1] Probability of ZPHOTBESTJHK being between min and max (ZPHOTPROBJHK) (stat.fit.goodness)
Leg1   [0/1] Indicates if object is in the SDSS Legacy footprint (meta.code)
Uni0   [0/1] Indicates if object was selected according to Richards et al. (2002AJ....123.2945R) (meta.code)
Prim 0   [0/673192456] SDSS primary target selection flag; see Richards et al. (2002AJ....123.2945R) (meta.code)
pm  mas/yr [0.005/193] Proper motion in milliarcseconds per year (pos.pm)
DB2   [1/7] Bitwise flag indicating low-z (20), mid-z (21), and high-z (22) sources (meta.code)

SloanSloan  Display the online SDSS data for the nearest object (meta.ref.url)
  
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