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J/ApJS/264/9
  Southern phot. quasars from DES DR2 & NIR surveys (Yang+, 2023)
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2023ApJS..264....9Y
Similar Catalogs
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1.J/ApJS/264/9/skewt(c)The DES DR2 skewt-QSO catalog (original column names in green) (1352947 rows)
2.J/ApJS/264/9/rmphot(c)Quasar targets for the Black Hole Mapper - reverberation mapping (BHM-RM) program in SDSS-V (Appendix A) (original column names in green) (78006 rows)
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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)CoadID   [870246065/1700559127] Unique identifier for the coadded objects (COADD_OBJECT_ID) (meta.id;meta.main)
   (ALL)RAJ2000 deg (i) DES right ascension (J2000) (ALPHAWIN_J2000) (pos.eq.ra;meta.main)
   (ALL)DEJ2000 deg (i) [-67.5/5.4] DES declination (J2000) (DELTAWIN_J2000) (pos.eq.dec;meta.main)
  (1)ClCoad  (n) [0/3] DES morphological object classification variable (EXTENDED_COADD) (Note 1)   (meta.code.class)
  (1)SNmax   [5/9989] Max. S/N of the PSF mag in DES (SN_MAX_PSF) (stat.snr)
  (1)SN3   [3/11] Number of bands in DES with S/N>3 (meta.number)
  (1)Phot (char) DES photometry fitting to quasar and star models; "PSF" or "AUTO" (PHOTOMETRY) (meta.note)
  (1)Band (char) [grizy] DES bands (BAND_DES) (meta.code;instr.filter)
  (1)gmagPSF mag (n) [-18.3/25.5] g-band DES PSF magnitude (MAG_PSF_G) (phot.mag;em.opt.B)
  (1)e_gmagPSF mag (n) [0.0002/1.3] gmagPSF uncertainty (MAGERR_PSF_G) (stat.error)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)rmagPSF mag (n) [14.3/25] r-band DES PSF magnitude (MAG_PSF_R) (phot.mag;em.opt.R)
  (1)e_rmagPSF mag (n) [0.0001/1.1] rmagPSF uncertainty (MAGERR_PSF_R) (stat.error)
  (1)imagPSF mag (n) [14.7/24.8] i-band DES PSF magnitude (MAG_PSF_I) (phot.mag;em.opt.I)
  (1)e_imagPSF mag (n) [0.0002/2.2] imagPSF uncertainty (MAGERR_PSF_I) (stat.error)
  (1)zmagPSF mag (n) [14.5/24] z-band DES PSF magnitude (MAG_PSF_Z) (phot.mag;em.opt.I)
  (1)e_zmagPSF mag (n) [0.0003/2.1] zmagPSF uncertainty (MAGERR_PSF_Z) (stat.error)
  (1)YmagPSF mag (n) [14.2/23.2] Y-band DES PSF magnitude (MAG_PSF_Y) (phot.mag;em.IR.J)
  (1)e_YmagPSF mag (n) [0.0005/4] YmagPSF uncertainty (MAGERR_PSF_Y) (stat.error)
  (1)gmag mag (n) [12.8/37.6] DES AUTO g-band magnitude (MAG_AUTO_G) (phot.mag;em.opt.B)
  (1)e_gmag mag [9e-5/28100] Uncertainty on gmag (MAGERR_AUTO_G) (stat.error;phot.mag)
  (1)rmag mag (n) [13/32.2] DES AUTO r-band magnitude (MAG_AUTO_R) (phot.mag;em.opt.R)
  (1)e_rmag mag [7e-5/271] Uncertainty on rmag (MAGERR_AUTO_R) (stat.error;phot.mag)
   (ALL)imag mag (n) [13.6/33.1] DES AUTO i-band magnitude (MAG_AUTO_I) (phot.mag;em.opt.I)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)e_imag mag [0.0002/1493] Uncertainty on imag (MAGERR_AUTO_I) (stat.error;phot.mag)
  (1)zmag mag (n) [13.3/33.8] DES AUTO z-band magnitude (MAG_AUTO_Z) (phot.mag;em.opt.I)
  (1)e_zmag mag [0.0002/2282] Uncertainty on zmag (MAGERR_AUTO_Z) (stat.error;phot.mag)
   (ALL)Ymag mag (n) [12.9/33.5] DES AUTO Y-band magnitude (MAG_AUTO_Y) (phot.mag;em.IR.J)
   (ALL)e_Ymag mag [0.0004/9385] Uncertainty on Ymag (MAGERR_AUTO_Y) (stat.error;phot.mag)
   (ALL)sigPlx  (n) [0/5] Gaia DR2 parallax significance (PLXSIG) (stat.fit.goodness;pos.parallax)
   (ALL)sigPM  (n) [0/5] Gaia DR2 proper-motion significance (PMSIG) (stat.fit.goodness;pos.pm)
  (1)sepGaia arcsec (n) [0/2] Angular distance between DES and Gaia coordinates (SEPARATION_GAIA) (pos.angDistance)
  (1)CNT9   [0/29] Number of sources with a 9" radius circular aperture (meta.number)
  (1)Dist arcsec [0.001/10] Angular distance to the closest neighbor within 9" (pos.angDistance)
   (ALL)CatNIR (char) NIR survey; i.e. VHS, VIKING, LAS, 2MASS or UHS (SURVEY_NIR) (meta.id)
  (1)BandNIR (char) [JHKY ] NIR bands (BAND_NIR) (meta.code;instr.filter)
  (1)NbNIR   [0/4] Number of NIR bands (NBAND_NIR) (meta.number)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
   (ALL)sepNIR arcsec [0/2] Angular distance between DES and NIR coordinates (SEPARATION_NIR) (pos.angDistance)
  (1)Ymag2 mag (n) [12.8/23.3] Y band (AB) magnitude (MAG_Y) (phot.mag;em.IR.J)
  (1)e_Ymag2 mag (n) [0.001/0.7] Uncertainty on Ymag (MAGERR_Y) (stat.error)
   (ALL)Jmag mag (n) [13.8/25.4] J-band (AB) magnitude (MAG_J) (phot.mag;em.IR.J)
   (ALL)e_Jmag mag (n) [0.001/8] Uncertainty on Jmag (MAGERR_J) (stat.error;phot.mag)
   (ALL)Hmag mag (n) [13/24.1] H-band (AB) magnitude (MAG_H) (phot.mag;em.IR.H)
   (ALL)e_Hmag mag (n) [0.0009/5] Uncertainty on Hmag (MAGERR_H) (stat.error;phot.mag)
   (ALL)Kmag mag (n) [12.3/22.7] K band (AB) magnitude (MAG_K) (phot.mag;em.IR.K)
   (ALL)e_Kmag mag (n) [0.0009/2.2] Uncertainty on Kmag (MAGERR_K) (stat.error;phot.mag)
  (1)BandW (char) [W1/W2 ] WISE bands (BAND_WISE) (meta.code;instr.filter)
  (1)NbW   [0/2] Number of WISE bands (NBAND_WISE) (meta.number)
   (ALL)sepWISE arcsec (n) [0/2] Angular distance between DES and unWISE coordinates (SEPARATION_WISE) (pos.angDistance)
   (ALL)W1mag mag (n) [11.3/22.5] WISE W1 (3.4um) band (AB) magnitude (MAG_W1) (phot.mag;em.IR.3-4um)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
   (ALL)e_W1mag mag (n) [0.0003/0.5] Uncertainty on W1mag (MAGERR_W1) (stat.error;phot.mag)
   (ALL)W2mag mag (n) [10.7/21.5] WISE W2 (4.6um) band (AB) magnitude (MAG_W2) (phot.mag;em.IR.4-8um)
   (ALL)e_W2mag mag (n) [-1.5/0.5] Uncertainty on W2mag (MAGERR_W2) (stat.error;phot.mag)
   (ALL)Comb (char) DES, NIR, and MIR band combination (COMBINATION) (meta.note)
  (1)Ref (char) [grizy] DES reference band (REFERENCE_BAND) (meta.ref;instr.bandpass)
   (ALL)Pqso   [0.3/1] PQSO, skewt-QSO probability fitting to QSO models, described in Equation (10) (P_QSO) (stat.fit.goodness)
   (ALL)zphotQ   [0.1/7.4] Quasar photo-z (PHOTOZ_QSO) (src.redshift.phot)
   (ALL)z1Q   [0.05/7.2] Lower limit of quasar photo-z (Z1_QSO) (src.redshift.phot;stat.min)
   (ALL)z2Q  (n) [0.15/7.9] Upper limit of quasar photo-z (Z2_QSO) (src.redshift.phot;stat.max)
  (1)PzQ   [1e-7/1] Probability of quasar photo-z locating within (z1Q, z2Q), described in Equation (5) (P_QSO_Z) (stat.fit.goodness)
   (ALL)Pgal   [6e-21/0.5] PGalaxy, skewt-QSO probability fitting to galaxy models (P_GALAXY) (stat.fit.goodness)
  (1)zphotG   [0.02/1.5] Galaxy photo-z (PHOTOZ_GALAXY) (src.redshift.phot)
  (1)z1G   [0.01/1.5] Lower limit of galaxy photo-z (Z1_GALAXY) (src.redshift.phot;stat.min)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)z2G  (n) [0.03/1.5] Upper limit of galaxy photo-z (Z2_GALAXY) (src.redshift.phot;stat.max)
  (1)PzG   [5e-7/1] Probability of galaxy photo-z locating within (z1G, z2G), described in Equation (7) (P_GALAXY_Z) (stat.fit.goodness)
   (ALL)Pstar   [5e-17/0.5] PStar, skewt-QSO probability fitting to star models (P_STAR) (stat.fit.goodness)
  (1)zsp  (n) [0.0038/6.9] Spectroscopic redshift (Z_SPEC) (src.redshift)
  (1)Catzsp (char) Spectroscopic redshift catalog, i.e., SDSS, Milliquas, or LAMOST (Z_SPEC_CAT) (meta.id)
  (1)Clsp (char) Spectroscopic classification (i.e. 84978 "QSO", 2261 "Galaxy" and 618 "Star") (CLASS_SPEC) (meta.code.class;src.class)
  (2)Field (char) Field identifier (FIELD_NAME) (meta.id;obs.field)
  (2)r_pos (char) Fiducial coordinates reference, priority: Gaia>DES>PS1>NSC (POS_REF) (meta.ref;pos.frame)
  (2)Dist deg [0.018/1.8] Angular distance from the field center (DISTANCE) (pos.angDistance)
  (2)E(B-V) mag (n) [0.003/0.32] Galactic reddening E(B-V) from Schlegel+ (1998ApJ...500..525S) (EBV) (phot.color.excess)
  (2)DES  A flag set to 1 if in DES photometric catalog (meta.code)
  (2)gmagDES mag (n) [13.7/25] g-band DES PSF magnitude (DES_MAGg) (phot.mag;em.opt.B)
  (2)e_gmagDES mag (n) [0.0002/0.3] gmagDES uncertainty (DES_MAGERRg) (stat.error)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)rmagDES mag (n) [14.5/24.2] r-band DES PSF magnitude (DES_MAGr) (phot.mag;em.opt.R)
  (2)e_rmagDES mag (n) [0.0002/0.25] rmagDES uncertainty (DES_MAGERRr) (stat.error)
  (2)imagDES mag (n) [14.3/23.7] i-band DES PSF magnitude (DES_MAGi) (phot.mag;em.opt.I)
  (2)e_imagDES mag (n) [0.0002/0.24] imagDES uncertainty (DES_MAGERRi) (stat.error)
  (2)zmagDES mag (n) [14/23] z-band DES PSF magnitude (DES_MAGz) (phot.mag;em.opt.I)
  (2)e_zmagDES mag (n) [0.0002/0.25] zmagDES uncertainty (DES_MAGERRz) (stat.error)
  (2)YmagDES mag (n) [11.7/22.6] Y-band DES PSF magnitude (DES_MAGY) (phot.mag;em.IR.J)
  (2)e_YmagDES mag (n) [0.0001/0.5] YmagDES uncertainty (DES_MAGERRY) (stat.error)
  (2)PS1  A flag set to 1 if in PS1 photometric catalog (meta.code)
  (2)gmagPS1 mag (n) [12.2/29.2] g-band PS1 PSF magnitude (PS1_MAGg) (phot.mag;em.opt.B)
  (2)e_gmagPS1 mag (n) [0.0003/1135] gmagPS1 uncertainty (PS1_MAGERRg) (stat.error)
  (2)rmagPS1 mag (n) [10.5/27.7] r-band PS1 PSF magnitude (PS1_MAGr) (phot.mag;em.opt.R)
  (2)e_rmagPS1 mag (n) [0.0002/17] rmagPS1 uncertainty (PS1_MAGERRr) (stat.error)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)imagPS1 mag (n) [10.6/23.6] i-band PS1 PSF magnitude (PS1_MAGi) (phot.mag;em.opt.I)
  (2)e_imagPS1 mag (n) [0.0002/0.5] imagPS1 uncertainty (PS1_MAGERRi) (stat.error)
  (2)zmagPS1 mag (n) [11/28.7] z-band PS1 PSF magnitude (PS1_MAGz) (phot.mag;em.opt.I)
  (2)e_zmagPS1 mag (n) [0.0002/66] zmagPS1 uncertainty (PS1_MAGERRz) (stat.error)
  (2)ymagPS1 mag (n) [9.7/26.6] y-band PS1 PSF magnitude (PS1_MAGy) (phot.mag;em.IR.J)
  (2)e_ymagPS1 mag (n) [0.0003/205] ymagPS1 uncertainty (PS1_MAGERRy) (stat.error;pos.cartesian.y)
  (2)NSC  A flag set to 1 if in NSC catalog (meta.code)
  (2)gmagNSC mag (n) [11.3/24.5] g-band NSC PSF magnitude (NSC_MAGg) (phot.mag;em.opt.B)
  (2)e_gmagNSC mag (n) [0.0001/0.3] gmagNSC uncertainty (NSC_MAGERRg) (stat.error)
  (2)rmagNSC mag (n) [11.5/24.4] r-band NSC PSF magnitude (NSC_MAGr) (phot.mag;em.opt.R)
  (2)e_rmagNSC mag (n) [0.0002/0.3] rmagNSC uncertainty (NSC_MAGERRr) (stat.error)
  (2)imagNSC mag (n) [11.4/23.8] i-band NSC PSF magnitude (NSC_MAGi) (phot.mag;em.opt.I)
  (2)e_imagNSC mag (n) [0.0001/0.3] imagNSC uncertainty (NSC_MAGERRi) (stat.error)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)zmagNSC mag (n) [11/23.7] z-band NSC PSF magnitude (NSC_MAGz) (phot.mag;em.opt.I)
  (2)e_zmagNSC mag (n) [0.0001/0.3] zmagNSC uncertainty (NSC_MAGERRz) (stat.error)
  (2)YmagNSC mag (n) [10.9/22.6] Y-band NSC PSF magnitude (NSC_MAGY) (phot.mag;em.IR.J)
  (2)e_YmagNSC mag (n) [0.0002/0.3] YmagNSC uncertainty (NSC_MAGERRY) (stat.error)
  (2)SDSS  A flag set to 1 if in SDSS photometric catalog (meta.code)
  (2)umagSDSS mag (n) [10.9/26.6] u-band SDSS PSF magnitude (SDSS_MAGu) (phot.mag;em.opt.U)
  (2)e_umagSDSS mag (n) [0.0004/431] umagSDSS uncertainty (SDSS_MAGERRu) (stat.error;pos.cartesian.x)
  (2)gmagSDSS mag (n) [9.8/26.3] g-band SDSS PSF magnitude (SDSS_MAGg) (phot.mag;em.opt.B)
  (2)e_gmagSDSS mag (n) [0.0001/438] gmagSDSS uncertainty (SDSS_MAGERRg) (stat.error)
  (2)rmagSDSS mag (n) [9.4/25.6] r-band SDSS PSF magnitude (SDSS_MAGr) (phot.mag;em.opt.R)
  (2)e_rmagSDSS mag (n) [0.0001/17] rmagSDSS uncertainty (SDSS_MAGERRr) (stat.error)
  (2)imagSDSS mag (n) [9.8/24.4] i-band SDSS PSF magnitude (SDSS_MAGi) (phot.mag;em.opt.I)
  (2)e_imagSDSS mag (n) [0.0001/646] imagSDSS uncertainty (SDSS_MAGERRi) (stat.error)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)zmagSDSS mag (n) [9.5/24] z-band SDSS PSF magnitude (SDSS_MAGz) (phot.mag;em.opt.I)
  (2)e_zmagSDSS mag (n) [0.0002/42] zmagSDSS uncertainty (SDSS_MAGERRz) (stat.error)
  (2)GCat  A flag set to 1 if in Gaia photometric catalog (meta.code.error;phot;meta.table)
  (2)Gmag mag (n) [6.8/21.8] Gaia G-band magnitude (Gaia_MAG_G) (phot.mag;em.opt)
  (2)e_Gmag mag (n) [0.0001/0.08] Uncertainty on the Gmag (Gaia_MAGERR_G) (stat.error;phot.mag)
  (2)BPmag mag (n) [6.9/23] Gaia BP-band magnitude (Gaia_MAG_GBP) (phot.mag;em.opt.B)
  (2)e_BPmag mag (n) [0.0001/28] Uncertainty on the BPmag (Gaia_MAGERR_GBP) (stat.error;phot.mag)
  (2)RPmag mag (n) [6.7/23] Gaia RP-band magnitude (Gaia_MAG_GRP) (phot.mag;em.opt.R)
  (2)e_RPmag mag (n) [0.0001/26] Uncertainty on the RPmag (Gaia_MAGERR_GRP) (stat.error;phot.mag)
  (2)WISE  A flag set to 1 if in WISE photometric catalog (meta.code)
  (2)NIR  A flag set to 1 if in NIR photometric catalog (meta.code)
  (2)CatOpt (char) Optical survey used in skewt-QSO, e.g., DES, PS1, Gaia, NSC (OPTICAL_SURVEY) (meta.id)
  (2)Nopt   [3/5] Number of optical bands used in skewt-QSO (NBAND_OPTICAL) (meta.number)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)logQSO   [-37.2/5.2] Natural logarithmic probability of a target fitting to QSO (Equation (9)) (LOG_QSO) (stat.fit.goodness)
  (2)PqGaia  (n) [/1] P_QSO using Gaia/NSC photometric data (for the S-CVZ field) (P_QSO_Gaia) (stat.fit.goodness)
  (2)PsGaia  (n) [/1] P_Star using Gaia/NSC photometric data (for the S-CVZ field) (P_STAR_Gaia) (stat.fit.goodness)
  (2)PgalGaia  (n) [/1] Galaxy using Gaia/NSC photometric data (for the S-CVZ field) (P_GALAXY_Gaia) (stat.fit.goodness)
  (2)Pqsoz   [8e-7/1] Probability of quasar photo-z locating within (z1QSO, z2QSO), described in Equation (5) (P_QSO_z) (stat.fit.goodness)

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