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J/A+A/704/A344
  eRASS1 counterparts and classification (Salvato+, 2025)
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2025A&A...704A.344S
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1.J/A+A/704/A344/dr1cw2020Identification and characterization of the counterparts to the X-ray point sources in the eROSITA/DR1 main catalogue using the CatWISE2020 survey (1001527 rows)

Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  IAUName (char) eROSITA String containing the official IAU name of the source (IAUNAME) (meta.id;meta.main)
  DetUId (char) eROSITA String unique detection (DETUID) (meta.id)
  SkyTile  (n) eROSITA Sky tile ID (SKYTILE) (obs.field)
  IdSrc  (n) eROSITA Source ID in each sky tile (ID_SRC) (Note 1)   (meta.id)
  UId  (n) eROSITA Integer unique detection ID (UID) (Note 2)   (meta.id)
  UIdHard  (n) eROSITA Hard catalog UID of the source with a strong association, or r-UID if the association is weak (UID_Hard) (meta.id)
  IdCluster  (n) eROSITA Group ID of simultaneously fitted sources (ID_CLUSTER) (meta.id.parent)
  RA_ICRS deg (i) eROSITA Right ascension (ICRS), corrected (RA) (pos.eq.ra;meta.main)
  DE_ICRS deg (i) eROSITA Declination (ICRS), corrected (DEC) (pos.eq.dec;meta.main)
  RARdeg deg eROSITA Right ascension (ICRS), uncorrected (RA_RAW) (pos.eq.ra)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  DERdeg deg eROSITA Declination (ICRS), uncorrected (DEC_RAW) (pos.eq.dec)
  e_RA_ICRS arcsec (n) eROSITA 1-sigma lower error on RA (RA_LOWERR) (stat.error;pos.eq.ra)
  E_RA_ICRS arcsec (n) eROSITA 1-sigma upper error on RA (RA_UPERR) (stat.error;stat.max)
  e_DE_ICRS arcsec (n) eROSITA 1-sigma lower error on DEC (DEC_LOWERR) (stat.error;pos.eq.dec)
  E_DE_ICRS arcsec (n) eROSITA 1-sigma upper error on DEC (DEC_UPERR) (stat.error;stat.max)
  RADEErr arcsec eROSITA Combined positional error, raw output from PSF fitting (POS_ERR) (stat.error;pos)
  posErr arcsec eROSITA 1-sigma positional uncertainty (RADEC_ERR) (stat.error;pos)
  GLON deg Galactic longitude (LII) (pos.galactic.lon)
  GLAT deg Galactic latitude (BII) (pos.galactic.lat)
  ELON deg Ecliptic longitude (ELON_1) (pos.ecliptic.lon)
  ELAT deg Ecliptic latitude (ELAT_1) (pos.ecliptic.lat)
  MJD d (i) Modified Julian Date of the observation of the source nearest to the optical axis of the telescope (MJD) (time.epoch)
  b_MJD d Minimum Modified Julian Date of observations used to construct the model of this object (MJD_MIN) (time.epoch)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  B_MJD d Maximum Modified Julian Date of observations used to construct the model of this object (MJD_MAX) (time.epoch)
  Ext arcsec [0] Source extent (EXT) (phys.angSize)
  s_Ext arcsec (n) [0] Extent error (EXT_ERR) (stat.error;phys.angSize)
  e_Ext arcsec (n) [0] 1-sigma lower error on EXT (EXT_LOWERR) (stat.error)
  E_Ext arcsec (n) [0] 1-sigma upper error on EXT (EXT_UPERR) (stat.error;stat.max)
  ExtLike   [0] Extent likelihood (EXT_LIKE) (stat.likelihood)
  DetLike0  Detection likelihood measured by forced PSF-fitting; 0.2-2.3keV (DETLIKE0) (stat.likelihood)
  MLcts1 ct Source net counts measured from count rate; 0.2-2.3keV (MLCTS1) (phot.count;em.X-ray)
  s_MLcts1 ct (n) 1 sigma counts error; 0.2-2.3keV (MLCTSERR_1) (stat.error;phot.count)
  e_MLcts1 ct (n) 1 sigma lower error of counts; 5-8keV; 0.2-2.3keV (MLCTSLOWERR_1) (stat.error)
  E_MLcts1 ct (n) 1 sigma upper error of counts; 5-8keV; 0.2-2.3keV (MLCTSUPERR_1) (stat.error;stat.max)
  MLRate1 ct/s Source count rate measured by forced PSF-fitting; 0.2-2.3keV (MLRATE1) (phot.count;em.X-ray)
  s_MLRate1 ct/s (n) 1 sigma count rate error; 0.2-2.3keV (MLRATEERR_1) (arith.rate;phot.count)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  e_MLRate1 ct/s (n) 1 sigma lower error of count rate; 5-8keV; 0.2-2.3keV (MLRATELOWERR_1) (stat.error)
  E_MLRate1 ct.s-1 (n) 1 sigma upper error of count rate; 5-8keV; 0.2-2.3keV (MLRATEUPERR_1) (stat.error;stat.max)
  MLFlux mW/m2 Source flux converted from count rate; 0.2-2.3keV (MLFLUX1) (phot.flux;em.X-ray)
  s_MLFlux mW/m2 (n) 1 sigma flux error; 0.2-2.3keV (MLFLUXERR_1) (stat.error;phot.flux)
  e_MLFlux mW/m2 (n) 1 sigma lower error of flux; 5-8keV; 0.2-2.3keV (MLFLUXLOWERR_1) (stat.error)
  E_MLFlux mW/m2 (n) 1 sigma upper error of flux; 5-8keV; 0.2-2.3keV (MLFLUXUPERR_1) (stat.error;stat.max)
  MLbkg1 arcmin-2 Background at the source position; 0.2-2.3keV (MLBKG1) (instr.background)
  MLExp1 s Vignetted exposure value; 0.2-2.3keV (MLEXP1) (stat.value;obs.exposure)
  MLeef1   [0.883602] Enclosed energy fraction (MLEEF1) (phys.energy)
  Apcts1 ct (n) Total counts extracted within the aperture; 0.2-2.3keV (APECTS1) (phot.count;em.X-ray)
  Apbkg1 ct Background counts in the aperture excluding nearby sources; 0.2-2.3keV (APEBKG1) (instr.background)
  ApExp1 s Vignetted exposure value; 0.2-2.3keV (APEEXP1) (stat.value;obs.exposure)
  ApRad1 pix Aperture radius; 0.2-2.3keV (APERADIUS1) (phys.angSize;src)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  ApPois1  (n) Poisson probability of being background fluctuation; 0.2-2.3keV (APEPOIS1) (stat.fit.goodness)
  FSpSNR   [0/1] Source may lie within an overdense region near a supernova remnant (FLAGSPSNR) (meta.code)
  FSpBPS   [0/1] Source may lie within an overdense region near a bright point source (FLAGSPBPS) (meta.code)
  FSpSCL   [0/1] Source may lie within an overdense region near a stellar cluster (FLAGSPSCL) (meta.code)
  FSpLGA   [0/1] Source may lie within an overdense region near a local large galaxy (FLAGSPLGA) (meta.code)
  FSpGCCons   [0/1] Source may lie within an overdense region near a galaxy cluster (FLAGSPGC_CONS) (meta.code)
  FNoRADEerr   [0/1] Source contained no RADEC_ERR in the pre-processed version of the catalog (FLAGNORADEC_ERR) (meta.code)
  FNoExterr   [0/1] Source contained no EXT_ERR in the pre-processed version of the catalog (FLAGNOEXT_ERR) (meta.code)
  FNoctserr   [0/1] Source contained no CTS_ERR in the pre-processed version of the catalog (FLAGNOCTS_ERR) (meta.code)
  FOpt   [0/1] Source matched within 15'' with a bright optical star, likely contaminated by optical loading (FLAG_OPT) (meta.code)
  HECATE-PGC  (n) Principal Galaxy Catalogue number (HECATE_PGC) (meta.id)
  HECATE (char) Object name in the HyperLEDA (HECATE_OBJNAME) (meta.id)
  RAHdeg deg (n) Right ascension from Hamstar (HECATE_RA) (pos.eq.ra)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  DEHdeg deg (n) Declination from Hamstar (HECATE_DEC) (pos.eq.dec)
  HECATER1 arcmin (n) Semi-major axis (HECATE_R1) (phys.angSize;src)
  HECATER2 arcmin (n) Semi-minor axis (HECATE_R2) (phys.angSize.sminAxis)
  HECATEPA deg (n) North-to-Northeast positional angle (HECATE_PA) (pos.posAng)
  FlagHECATE   [0/1] 1 if the source is associate to an HECATE object, 0 otherwise (HECATE) (meta.code.error)
  ERO (char) ERO ID (ERO_ID) (meta.id)
  CW2020 (char) CW2020 DR3 ID (CW2020sourceid) (meta.id)
  RACdeg deg (n) CW2020 Right ascension (CW2020RA1) (pos.eq.ra)
  DECdeg deg (n) CW2020 Declination (CW2020DEC1) (pos.eq.dec)
  CWXpr  (n) Probability to be an X-ray emitter using CW2020 prior (CW2020Xrayproba) (stat.fit.goodness)
  SepCW-GDR3 arcsec (n) Separation between Gaia DR3 and eROSITA source (NWAYSeparationCW2020_ERO) (pos.angDistance)
  ncat  (n) [2] 2 if source has counterpart in CW2020, 1 otherwise (NWAY_ncat) (meta.code)
  distbayfac  (n) Logarithm of ratio between prior and posterior, from separation, positional error and number density (NWAYdistbayesfactor) (Note 3)   (stat.fit.goodness)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  distpost  (n) Distance posterior probability comparing this association vs. no association (NWAYdistpost) (Note 3)   (stat.fit.goodness)
  biasCWXpr  (n) Prior Probability weighting. A value of 1 indicates no change from probability due to astrometry (see paper) (NAYbiasCW2020Xrayproba) (stat.fit.goodness)
  psingle  (n) Same as dist_post, but weighted by the prior (NWAYpsingle) (Note 3)   (stat.fit.goodness)
  pany  (n) For each entry in the X-ray catalogue, the probability that there is a counterpart (NWAYpany) (Note 3)   (stat.fit.goodness)
  pi  (n) Relative probability of the eROSITA/CW2020 match (NWAYpi) (Note 3)   (stat.fit.goodness)
  matchflag  (n) assuming ncat\equiv2: 1 best counterpart; 2 alternative good counterpart (NWAYmatchflag) (meta.code)
  RAC1deg deg (n) CW2020 Right ascension (CW2020RA1a) (pos.eq.ra)
  DEC1deg deg (n) CW2020 Declination (CW2020DEC1a) (pos.eq.dec)
  e_RAC1deg arcsec (n) CW2020 1 sigma error for Right Ascension (CW2020_sigra) (stat.error)
  e_DEC1deg arcsec (n) CW2020 1 sigma error for Declination (CW2020_sigdec) (stat.error)
  FW1CW  (n) W1 profile-fit photometry raw flux in dn unit (CW2020_w1flux) (phot.mag;em.IR.3-4um)
  e_FW1CW  (n) W1 profile-fit photometry raw flux in dn unit uncertainty (CW2020_w1sigflux) (stat.error)
  FW2CW  (n) W2 profile-fit photometry raw flux in dn unit (CW2020_w2flux) (phot.mag;em.IR.4-8um)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  e_FW2CW  (n) W2 profile-fit photometry raw flux in dn unit uncertainty (CW2020_w2sigflux) (stat.error)
  W1magpCW mag (n) W1 instrumental profile-fit photometry magnitude (CW2020_w1mpro) (phot.mag;em.IR.3-4um)
  e_W1magpCW mag (n) W1 instrumental profile-fit photometry flux uncertainty (CW2020_w1sigmpro) (stat.error)
  W11rchi2CW  (n) W1 instrumental profile-fit photometry reduced chi^2 (CW2020_w1rchi2) (stat.fit.chi2)
  W2magpCW mag (n) W2 instrumental profile-fit photometry magnitude (CW2020_w2mpro) (phot.mag;em.IR.4-8um)
  e_W2magpCW mag (n) W2 instrumental profile-fit photometry flux uncertainty (CW2020_w2sigmpro) (stat.error)
  W2rchi2CW  (n) W2 instrumental profile-fit photometry reduced chi^2 (CW2020_w2rchi2) (stat.fit.chi2)
  W2SatCW  (n) W2 fraction of pixels affected by saturation (CW2020_w2Sat) (stat.fit.param)
  W1magCW mag (n) W1 instrumental standard aperture (8.25") mag w/aperture correction applied (CW2020_w1mag) (phot.mag;em.IR.3-4um)
  e_W1magCW mag (n) W1 instrumental standard aperture mag uncertainty (CW2020_w1sigm) (stat.error)
  W2magCW mag (n) W2 instrumental standard aperture (8.25") mag w/aperture correction applied (CW2020_w2mag) (phot.mag;em.IR.4-8um)
  e_W2magCW mag (n) W2 instrumental standard aperture mag uncertainty (CW2020_w2sigm) (stat.error)
  f_W2magCW  (n) W2 instrumental standard aperture flag (CW2020_w2flg) (meta.code)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  W1mag2CW mag (n) W1 aperture 1 (5.50") instrumental aperture mag (CW2020w1mag1) (phot.mag;em.IR.3-4um)
  e_W1mag2CW mag (n) W1 aperture 1 instrumental aperture mag uncertainty (CW2020w1sigm1) (stat.error)
  W2mag2CW mag (n) W2 aperture 1 (5.50") instrumental aperture mag (CW2020w2mag1) (phot.mag;em.IR.4-8um)
  e_W2mag2CW mag (n) W2 aperture 1 instrumental aperture mag uncertainty (CW2020w2sigm1) (stat.error)
  W1mag3CW mag (n) W1 aperture 2 (8.25") instrumental aperture mag (CW2020w1mag2) (phot.mag;em.IR.3-4um)
  e_W1mag3CW mag (n) W1 aperture 2 instrumental aperture mag uncertainty (CW2020w1sigm2) (stat.error)
  W2mag3CW mag (n) W2 aperture 2 (8.25") instrumental aperture mag (CW2020w2mag2) (phot.mag;em.IR.4-8um)
  e_W2mag3CW mag (n) W2 aperture 2 instrumental aperture mag uncertainty (CW2020w2sigm2) (stat.error)
  pmRACW arcsec/yr(n) Apparent motion in RA; (note uncorrected systematic in CatWISE2020 ) (CW2020_PMRA) (pos.pm)
  pmDECW arcsec/yr(n) Apparent motion in Dec; (note uncorrected systematic in CatWISE2020) (CW2020_PMDec) (pos.pm)
  e_pmRACW arcsec/yr(n) Uncertainty in the RA motion estimate (CW2020_sigPMRA) (stat.error;pos.pm;pos.eq.ra)
  e_pmDECW arcsec/yr(n) Uncertainty in the Dec motion estimate (CW2020_sigPMDec) (stat.error;pos.pm;pos.eq.dec)
  GLON1 deg (n) Galactic longitude (glon) (pos.galactic.lon)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  GLAT1 deg (n) Galactic latitude (only present in CatWISE 2020) (glat) (pos.galactic.lat)
  ELON1 deg (n) Ecliptic longitude (elon_1a) (pos.ecliptic.lon)
  ELAT1 deg (n) Ecliptic latitude (elat_1a) (pos.ecliptic.lat)
  thres6  (n) p_any value at the intersection between purity and completeness for DETLIKE0>;=6 (NWAY_threshold6) (stat.fit.param)
  compur6  (n) Value of Purity and Completeness at the intersection point for DETLIKE0>=6 (NWAY_compur6) (stat.fit.param)
  purity6  (n) Purity at the value of p_any for DETLIKE0>=6 (NWAY_purity6) (stat.fit.param)
  comp6  (n) Completeness at the value of p_any for DETLIKE0>=6 (NWAY_completeness6) (stat.fit.param)
  thres7  (n) p_any value at the intersection between purity and completeness for DETLIKE0>=7 (NWAY_threshold7) (stat.fit.param)
  compur7  (n) Value of Purity and Completeness at the intersection point for DETLIKE0>=7 (NWAY_compur7) (stat.fit.param)
  purity7  (n) Purity at the value of p_any for DETLIKE0>=7 (NWAY_purity7) (stat.fit.param)
  comp7  (n) Completeness at the value of p_any for DETLIKE0>=7 (NWAY_completeness7) (stat.fit.param)
  thres8  (n) p_any value at the intersection between purity and completeness for DETLIKE0>=8 (NWAY_threshold8) (stat.fit.param)
  compur8  (n) Value of Purity and Completeness at the intersection point for DETLIKE0>=8 (NWAY_compur8) (stat.fit.param)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  purity8  (n) Purity at the value of p_any for DETLIKE0>=8 (NWAY_purity8) (stat.fit.param)
  comp8  (n) Completeness at the value of p_any for DETLIKE0>=8 (NWAY_completeness8) (stat.fit.param)
  zsp  (n) Spectroscopic redshift from literature (zspec_compilation) (src.redshift)
  r_zsp (char) Reference for the redshift adopted (zspec_ref) (meta.ref;pos.frame)
  InAll   [0/1] when the counterpart is a brick where the g, r, i, z nominal depth for LS10 (23.5, 23.3, 22.8 or 22.3) is reached in all bands (InAllLS102025) (meta.code)
  InAny   [0/1] when the counterpart is in a brick where at least one of the g, r, i, z in LS10 reached the nominal depth (InAnyLS102025) (meta.code)
  Clean   [0/1] Unflagged Point like X-ray source (see Figure 11 of paper) (clean) (meta.code)
  bestCTP   [0/1] Primary GDR3 counterpart to clean sources (bestCTP) (meta.code)
  exgal   [0/1] Clean primary counterpart classified as extragalactic (see Fig 11 of paper) (exgal) (meta.code)
  outLS10   [0/1] Source outside the footprint of LS10 (outsideLS10) (meta.code)
  outLS10T8   [0/1] Source with DETLIKE0>8 and outside the footprint of LS10 (outsideLS10DET8) (meta.code)
  ROSAT/2RXS (char) Corresponding ROSAT/2RXS source (ROSAT/2RXS) (meta.id)
  ALLWISE (char) AllWISE counterpart to ROSAT/2RXS source (ALLWISE) (meta.id)

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