VizieR

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Simple Target List Of Targets Fast 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/A+A/704/A344	9645		eRASS1 counterparts and classification (Salvato+, 2025) ReadMe+ftp 2025A&A...704A.344S Similar Catalogs Post annotation
1.	J/A+A/704/A344/dr1cw2020		Identification and characterization of the counterparts to the X-ray point sources in the eROSITA/DR1 main catalogue using the CatWISE2020 survey (1001527 rows) metaJ/A+A/704/A344/dr1cw2020

Simple Constraint List Of Constraints

Query by Constraints constraints help

applied on Columns (Output Order: + - )

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Column

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

⁽ⁱ⁾ Modified Julian Date of the observation of the source nearest to the optical axis of the telescope (MJD) (time.epoch)

b_MJD

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

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 (DET_LIKE0) (stat.likelihood)

MLcts1

Source net counts measured from count rate; 0.2-2.3keV (ML_CTS1) (phot.count;em.X-ray)

s_MLcts1

⁽ⁿ⁾ 1 sigma counts error; 0.2-2.3keV (ML_CTSERR_1) (stat.error;phot.count)

e_MLcts1

⁽ⁿ⁾ 1 sigma lower error of counts; 5-8keV; 0.2-2.3keV (ML_CTSLOWERR_1) (stat.error)

E_MLcts1

⁽ⁿ⁾ 1 sigma upper error of counts; 5-8keV; 0.2-2.3keV (ML_CTSUPERR_1) (stat.error;stat.max)

MLRate1

ct/s

Source count rate measured by forced PSF-fitting; 0.2-2.3keV (ML_RATE1) (phot.count;em.X-ray)

s_MLRate1

ct/s

⁽ⁿ⁾ 1 sigma count rate error; 0.2-2.3keV (ML_RATEERR_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 (ML_RATELOWERR_1) (stat.error)

E_MLRate1

ct.s-1

⁽ⁿ⁾ 1 sigma upper error of count rate; 5-8keV; 0.2-2.3keV (ML_RATEUPERR_1) (stat.error;stat.max)

MLFlux

mW/m2

Source flux converted from count rate; 0.2-2.3keV (ML_FLUX1) (phot.flux;em.X-ray)

s_MLFlux

mW/m2

⁽ⁿ⁾ 1 sigma flux error; 0.2-2.3keV (ML_FLUXERR_1) (stat.error;phot.flux)

e_MLFlux

mW/m2

⁽ⁿ⁾ 1 sigma lower error of flux; 5-8keV; 0.2-2.3keV (ML_FLUXLOWERR_1) (stat.error)

E_MLFlux

mW/m2

⁽ⁿ⁾ 1 sigma upper error of flux; 5-8keV; 0.2-2.3keV (ML_FLUXUPERR_1) (stat.error;stat.max)

MLbkg1

arcmin-2

Background at the source position; 0.2-2.3keV (ML_BKG1) (instr.background)

MLExp1

Vignetted exposure value; 0.2-2.3keV (ML_EXP1) (stat.value;obs.exposure)

MLeef1

[0.883602] Enclosed energy fraction (ML_EEF1) (phys.energy)

Apcts1

⁽ⁿ⁾ Total counts extracted within the aperture; 0.2-2.3keV (APE_CTS1) (phot.count;em.X-ray)

Apbkg1

Background counts in the aperture excluding nearby sources; 0.2-2.3keV (APE_BKG1) (instr.background)

ApExp1

Vignetted exposure value; 0.2-2.3keV (APE_EXP1) (stat.value;obs.exposure)

ApRad1

pix

Aperture radius; 0.2-2.3keV (APE_RADIUS1) (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 (APE_POIS1) (stat.fit.goodness)

FSpSNR

[0/1] Source may lie within an overdense region near a supernova remnant (FLAG_SPSNR) (meta.code)

FSpBPS

[0/1] Source may lie within an overdense region near a bright point source (FLAG_SPBPS) (meta.code)

FSpSCL

[0/1] Source may lie within an overdense region near a stellar cluster (FLAG_SPSCL) (meta.code)

FSpLGA

[0/1] Source may lie within an overdense region near a local large galaxy (FLAG_SPLGA) (meta.code)

FSpGCCons

[0/1] Source may lie within an overdense region near a galaxy cluster (FLAG_SPGC_CONS) (meta.code)

FNoRADEerr

[0/1] Source contained no RADEC_ERR in the pre-processed version of the catalog (FLAG_NORADEC_ERR) (meta.code)

FNoExterr

[0/1] Source contained no EXT_ERR in the pre-processed version of the catalog (FLAG_NOEXT_ERR) (meta.code)

FNoctserr

[0/1] Source contained no CTS_ERR in the pre-processed version of the catalog (FLAG_NOCTS_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 (CW2020_sourceid) (meta.id)

RACdeg

deg

⁽ⁿ⁾ CW2020 Right ascension (CW2020_RA1) (pos.eq.ra)

DECdeg

deg

⁽ⁿ⁾ CW2020 Declination (CW2020_DEC1) (pos.eq.dec)

CWXpr

⁽ⁿ⁾ Probability to be an X-ray emitter using CW2020 prior (CW2020_Xrayproba) (stat.fit.goodness)

SepCW-GDR3

arcsec

⁽ⁿ⁾ Separation between Gaia DR3 and eROSITA source (NWAY_SeparationCW2020_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 (NWAY_distbayesfactor) (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 (NWAY_distpost) (Note 3) (stat.fit.goodness)

biasCWXpr

⁽ⁿ⁾ Prior Probability weighting. A value of 1 indicates no change from probability due to astrometry (see paper) (NAY_biasCW2020_Xrayproba) (stat.fit.goodness)

psingle

⁽ⁿ⁾ Same as dist_post, but weighted by the prior (NWAY_psingle) (Note 3) (stat.fit.goodness)

pany

⁽ⁿ⁾ For each entry in the X-ray catalogue, the probability that there is a counterpart (NWAY_pany) (Note 3) (stat.fit.goodness)

⁽ⁿ⁾ Relative probability of the eROSITA/CW2020 match (NWAY_pi) (Note 3) (stat.fit.goodness)

matchflag

⁽ⁿ⁾ assuming ncat\equiv2: 1 best counterpart; 2 alternative good counterpart (NWAY_matchflag) (meta.code)

RAC1deg

deg

⁽ⁿ⁾ CW2020 Right ascension (CW2020_RA1a) (pos.eq.ra)

DEC1deg

deg

⁽ⁿ⁾ CW2020 Declination (CW2020_DEC1a) (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 (CW2020_w1mag1) (phot.mag;em.IR.3-4um)

e_W1mag2CW

mag

⁽ⁿ⁾ W1 aperture 1 instrumental aperture mag uncertainty (CW2020_w1sigm1) (stat.error)

W2mag2CW

mag

⁽ⁿ⁾ W2 aperture 1 (5.50") instrumental aperture mag (CW2020_w2mag1) (phot.mag;em.IR.4-8um)

e_W2mag2CW

mag

⁽ⁿ⁾ W2 aperture 1 instrumental aperture mag uncertainty (CW2020_w2sigm1) (stat.error)

W1mag3CW

mag

⁽ⁿ⁾ W1 aperture 2 (8.25") instrumental aperture mag (CW2020_w1mag2) (phot.mag;em.IR.3-4um)

e_W1mag3CW

mag

⁽ⁿ⁾ W1 aperture 2 instrumental aperture mag uncertainty (CW2020_w1sigm2) (stat.error)

W2mag3CW

mag

⁽ⁿ⁾ W2 aperture 2 (8.25") instrumental aperture mag (CW2020_w2mag2) (phot.mag;em.IR.4-8um)

e_W2mag3CW

mag

⁽ⁿ⁾ W2 aperture 2 instrumental aperture mag uncertainty (CW2020_w2sigm2) (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 DET_LIKE0>;=6 (NWAY_threshold6) (stat.fit.param)

compur6

⁽ⁿ⁾ Value of Purity and Completeness at the intersection point for DET_LIKE0>=6 (NWAY_compur6) (stat.fit.param)

purity6

⁽ⁿ⁾ Purity at the value of p_any for DET_LIKE0>=6 (NWAY_purity6) (stat.fit.param)

comp6

⁽ⁿ⁾ Completeness at the value of p_any for DET_LIKE0>=6 (NWAY_completeness6) (stat.fit.param)

thres7

⁽ⁿ⁾ p_any value at the intersection between purity and completeness for DET_LIKE0>=7 (NWAY_threshold7) (stat.fit.param)

compur7

⁽ⁿ⁾ Value of Purity and Completeness at the intersection point for DET_LIKE0>=7 (NWAY_compur7) (stat.fit.param)

purity7

⁽ⁿ⁾ Purity at the value of p_any for DET_LIKE0>=7 (NWAY_purity7) (stat.fit.param)

comp7

⁽ⁿ⁾ Completeness at the value of p_any for DET_LIKE0>=7 (NWAY_completeness7) (stat.fit.param)

thres8

⁽ⁿ⁾ p_any value at the intersection between purity and completeness for DET_LIKE0>=8 (NWAY_threshold8) (stat.fit.param)

compur8

⁽ⁿ⁾ Value of Purity and Completeness at the intersection point for DET_LIKE0>=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 DET_LIKE0>=8 (NWAY_purity8) (stat.fit.param)

comp8

⁽ⁿ⁾ Completeness at the value of p_any for DET_LIKE0>=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 DET_LIKE0>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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