J/A+A/698/A132ivo://CDS.VizieR/J/A+A/698/A132doi:10.26093/cds/vizier/bc-nt/lbdcCDSAydar C.Merloni A.Dwelly T.Comparat J.Salvato M.Buchner J.,Brusa M.Liu T.Wolf J.Anderson S.F.Andonie C.P.Bauer F.E.,Blanton M.R.Brandt W.N.Diaz Y.Hernandez-Garcia L.Kim D.-W.,Miyaji T.Morrison S.Musiimenta B.Negrete C.A.Ni Q.Ricci C.,Schneider D.P.Schwope A.Shen Y.Waddell S.G.H.Arcodia R.Bizyaev D.,Burchett J.N.Chakraborty P.Covey K.Gaensicke B.T.Georgakakis A.,Green P.J.Ibarra H.Ider-Chitham J.Koekemoer A.M.Kollmeier J.A.,Krumpe M.Lamer G.Malyali A.Nandra K.Pan K.Pizarro C.R.,Sanchez-Gallego J.Trump J.R.Urrutia T.2026-07-03T06:37:11Z2025-06-11T09:37:16ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frx-ray-sourcesredshiftedspectroscopyactive-galactic-nucleiWe present one of the largest uniform optical spectroscopic surveys of X-ray selected sources to date observed as a pilot study for the Black Hole Mapper survey (BHM). The BHM program of the Sloan Digital Sky Survey (SDSS)-V is designed to provide optical spectra for hundreds of thousands of X-ray selected sources from the SRG/eROSITA all-sky survey, significantly improving our ability to classify and characterize the physical properties of large statistical populations of X-ray emitting objects. Our sample consists of 13079 sources in the eROSITA eFEDS performance verification field, among which 12011 provide reliable redshifts from 0<z<5.8. The vast majority of these objects were detected as point-like sources (X-ray flux limit F_0.5_-2keV>6.5x10^15^erg/s/cm^2^) and observed, over about twenty years, with fiber-fed SDSS spectrographs. After including all available redshift information for the eFEDS sources from the dedicated SDSS-V plate programme and archival data, we visually inspected the SDSS optical spectra to check the reliability of these redshift measurements, as well as the performance of the SDSS pipeline. The visual inspection allowed both the recovery of reliable redshifts (for 99% of SNR> 2 spectra) and the assignment of classes to the sources, where we confirm that the vast majority of our sample consists of active galactic nuclei (AGN), with only ~3% of the eFEDS/SDSS sources being Galactic objects. We analyse the completeness and purity of the spectroscopic redshift catalogue, with the spectroscopic completeness rising from 48% (full sample) to 81% for a cleaner, brighter (rAB<21.38) sample defined considering high X-ray detection likelihood, reliable counterpart association, and optimal sky coverage. We also showcase the diversity of the optical spectra of the X-ray-selected AGN, and provide high signal-to-noise ratio spectral stacks in various sub-samples of different redshift and optical broad-band colours. Our AGN sample contains optical spectra of (broad-line) quasars, narrow-line galaxies, and optically passive galaxies, showing considerable diversity in colours and levels of nuclear obscuration.2025A&A...698A.132Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/698/A132CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/661/A1 : The eFEDS X-ray catalogs (V7.4) (Brunner+, 2022)J/A+A/661/A2 : Galaxy clusters and groups in eFEDS (Liu+, 2022)J/A+A/661/A3 : eFEDS counterparts to point-like sources (Salvato+, 2022)J/A+A/661/A5 : The eFEDS AGN catalog (Liu+, 2022)J/A+A/661/A7 : X-ray properties of eFEDS clusters and groups (Bahar+, 2022)J/A+A/661/A8 : eFEDS catalogue of variable X-ray sources (Boller+, 2022)J/A+A/661/A10 : eFEDS galaxy clusters and groups in disguise (Bulbul+, 2022)J/A+A/661/A11 : eFEDS. Masses of galaxy clusters and groups (Chui+, 2022)J/A+A/661/A14 : Properties of eFEDS shear-selected clusters (Ramos-Ceja+, 2022)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/698/A132https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/698/A132http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/698/A132https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/698/A132https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/698/A132http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/698/A132GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/698/A132/catalog (X-ray, photometric counterpart, optical spectra, and visual inspection results for the point-like X-ray selected sources at eFEDS)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/698/A132/catalog?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/698/A132/catalog?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/698/A132/catalog?GETtext/xml+votable180.050000true130.382335301214.981761475440.005555555555555556Cone search capability for table J/A+A/698/A132/spectra (Spectroscopic compilation and visual inspection results for the eFEDS sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/698/A132/spectra?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/698/A132/spectra?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/698/A132/spectra?GETtext/xml+votable180.050000true4/256-258 1365 1367 1705-1707 1710 5/1036 1040 1056 5457-5459 5464-5465 5467 5492-5493 5495 6798 6817-6819 6834 10237-10239 6/4148 4152 4164 4168 4228 4232 21789-21791 21813 21825-21827 21865 21957 21977 27181-27183 27186-27187 27196 27198-27199 27265-27267 27328 27330-27331 27340 27342-27343 27376 27378-27379 27384 40925-40927 40941-40943 40945-409478.643406281242892e-20 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/698/A132?format=asciiX-raydefaultJ/A+A/698/A132/catalogX-ray, photometric counterpart, optical spectra, and visual inspection results for the point-like X-ray selected sources at eFEDSrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID-SRC? ID of eROSITA source in the Main Sample (ERO_ID_SRC) (1)meta.idintnullableRAcRight Ascension (J2000) of eROSITA source (corrected) (ERO_RA_CORR) (1)degpos.eq.ra;arith.diffindexedDEcDeclination (J2000) of eROSITA source (corrected) (ERO_DEC_CORR) (1)degpos.eq.dec;arith.diffindexedePosceROSITA positional uncertainty (corrected) (ERO_RADEC_ERR_CORR) (1)arcsecstat.error;posdoubleMLFlux0.2-2.3 keV source flux (ERO_ML_FLUX) (1)mW.m**-2phot.flux;em.X-raydoubleEpochO? Coordinate epoch associated with individual spec-z measurement (SPECZ_ORIG_POS_EPOCH)time.epochfloatnullablespzO-LSsep? Distance from spec-z to lsdr9 photometric ctp (corrected for pm) (SPECZ_ORIG_LS_SEP)arcsecpos.angDistance;src.orbitaldoublenullablespzOLSGT1ctpCan spec-z be associated with >1 possible lsdr9 counterpart? (SPECZ_ORIG_LS_GT1CTP)meta.codeintspzOLSctpRank? Rank of ctp out of all possibilities for this spec-z (1=closest) (SPECZ_ORIG_LS_CTP_RANK)stat.fit.paramintnullablezpzOz? Orig. redshift value of individual spec-z measurement (SPECZ_ORIG_REDSHIFT)src.redshift;pos.heliocentricdoublenullablezpzOnormQ? Orig. redshift quality of individual spec-z measurement - normalised (SPECZ_ORIG_NORMQ)meta.codeintnullableplx? Parallax from Gaia EDR3 (GaiaEDR3_parallax)maspos.parallax.trigdoublenullableW1mag? LS8/Wise W1 magnitude (AB) (W1)magphot.mag;em.IR.3-4umdoublenullableHSCoptExtExtension in HSC griz bands. 1=extended; -99=data missing 0=other from Aihara et al. (2018PASJ...70S...4A) (HSC_opt_extended)phys.angSizeintphotLS8[0/1]? Flag for LS8 photometry: true when the source has simultaneously g,r,z,w1 photometry in LS8 (CTP_LS8_phot_flag)meta.codeintnullableRAPdeg? SDSS plug position coordinate: right ascension (PLUG_RA)degpos.eq.ra;arith.diffnullableDEPdeg? SDSS plug position coordinate: declination (PLUG_DEC)degpos.eq.dec;arith.diffnullablePlate? SDSS plate used in the observation (PLATE)instr.setup;instr.plate;obsintnullableFiberId? SDSS fiber identification (FIBERID)meta.idintnullableLumIMedS? Intrinsic luminosity in rest-frame 0.5-2 keV, posterior median (LumiIntr_Med_s) (6)1e-07Wphys.luminosity;em.X-raydoublenullableb_LumIS? Intrinsic luminosity in rest-frame 0.5-2 keV, 1sigma lower limit (LumiIntr_Lo1_s) (6)1e-07Wphys.luminosity;em.X-ray.softdoublenullableB_LumIS? Intrinsic luminosity in rest-frame 0.5-2 keV, 1sigma upper limit (LumiIntr_Up1_s) (6)1e-07Wphys.luminosity;em.X-ray.softdoublenullablespzNormCFinal normalised classification determined for this object (SPECZ_NORMC)meta.code.classcharspzCatCodeCatalogue code of best spec-z for this object (SPECZ_CATCODE)meta.code.classcharspzOID1Orig. value of ID of individual spec-z measurement (as a string) (SPECZ_ORIG_ID_1)meta.idcharq_zpzOzOrig. redshift quality value of individual spec-z measurement (SPECZ_ORIG_QUAL)meta.code.qualcharzpzONormCNormalised classification code of individual spec-z measurement (SPECZ_ORIG_NORMC)meta.code.classchare_MLFlux? 0.2-2.3 keV source flux error (1 sigma) (ERO_ML_FLUX_ERR) (1)mW.m**-2stat.errordoublenullableDetLike0.2-2.3 keV detection likelihood via PSF-fitting (ERO_DET_LIKE) (1)stat.likelihooddoubleRALdegRight Ascension (J2000) of the LS8 counterpart (CTP_LS8_RA) (2)degpos.eq.ra;arith.diffDELdegDeclination (J2000) of the best LS8 counterpart (CTP_LS8_DEC) (2)degpos.eq.dec;arith.diffDistLESeparation between ctp and eROSITA position (Dist_CTP_LS8_ERO) (2)arcsecpos.angDistance;src.orbitaldoubleCtpQualityCounterpart quality: 4=best, 3=good,2=secondary, 1/0=unreliable (CTP_quality) (2)meta.code.qualintNzsp? Total number of spec-z associated with this lsdr9 object (SPECZ_N)meta.numberintnullableRAzdeg? Coordinate of spec-z, propagated if necessary to epoch J2000 (SPECZ_RAJ2000)degpos.eq.ra;arith.diffnullableDEzdeg? Coordinate of spec-z, propagated if necessary to epoch J2000 (SPECZ_DEJ2000)degpos.eq.dec;arith.diffnullableNzspsel? Number of spec-z selected to inform result for this object (SPECZ_NSEL)meta.numberintnullablezsp? Final redshift determined for this object (SPECZ_REDSHIFT)src.redshiftdoublenullablespzNormQ? Final normalised redshift quality associated with this object (SPECZ_NORMQ)meta.code.qualintnullablespzHasViTrue if best spec-z for this object has a visual inspection (SPECZ_HASVI)meta.codeintspzBitMask? Bitmask encoding catalogues containing spec-z for this object (SPECZ_BITMASK)meta.codeintnullablespzSelBitMask? Bitmask encoding catalogues containing informative spec-z for object (SPECZ_SEL_BITMASK)meta.codeintnullablespzFlags? Bitmask encoding quality flags for this object (SPECZ_FLAGS)meta.codeintnullablespzSelNormQMax? Highest NORMQ of informative spec-z for this object (SPECZ_SEL_NORMQ_MAX)meta.codeintnullablespzSelNormQMean? Mean NORMQ of informative spec-z for this object (SPECZ_SEL_NORMQ_MEAN)meta.codeintnullablespzSelzmean? Mean REDSHIFT of informative spec-z for this object (SPECZ_SEL_Z_MEAN)src.redshift;pos.heliocentricdoublenullablespzSelzmed? Median REDSHIFT of informative spec-z for this object (SPECZ_SEL_Z_MEDIAN)src.redshift;pos.heliocentricdoublenullablespzSelzstddev? Standard deviation of REDSHIFTs for informative spec-z for object (SPECZ_SEL_Z_STDDEV)stat.stdevdoublenullableRAOdeg? Coordinate associated with individual spec-z measurement (SPECZ_ORIG_RA)degpos.eq.ra;arith.diffnullableDEOdeg? Coordinate associated with individual spec-z measurement (SPECZ_ORIG_DEC)degpos.eq.dec;arith.diffnullablezpzOClassOrig. classification label of individual spec-z measurement (SPECZ_ORIG_CLASS)meta.code.classcharzpzOHasViTrue if individual spec-z has a visual inspection from our team (SPECZ_ORIG_HASVI)meta.codeintRAUdeg? Adopted coordinate of specz when matching to Salvato et al. (2022, Cat. J/A+A/661/A3) counterpart (SPECZ_RA_USED)degpos.eq.ra;arith.diffnullableDEUdeg? Adopted coordinate of specz when matching to Salvato et al. (2022, Cat. J/A+A/661/A3) counterpart (SPECZ_DEC_USED)degpos.eq.dec;arith.diffnullableSepspz-ctp? Dist. from CTP_LS8_RA, CTP_LS8_DEC to SPECZ_RA_specz, SPECZ_DEC_specz (Separation_SPECZ_CTP)arcsecpos.angDistance;src.orbitaldoublenullablehas-speczDoes this Salvato et al. (2022, Cat. J/A+A/661/A3) counterpart have a spec-z? (has_specz)meta.codeintgood-ctp[0/1] Has good counterpart? (good_ctp)meta.codeintdl10[0/1] Has LS-DR10 images? (dl10)meta.codeintzspSDSS[0/1] Has SDSS zsp? (sdss_specz)src.redshift;pos.heliocentricintzspOther[0/1] Has other zsp? (others_specz)src.redshift;pos.heliocentricintgoodz[0/1] Has good zsp? (goodz)meta.codeintRANdegRight Ascension (J2000) of the best LS8 counterpart from NWAY (CTP_NWAY_LS8_RA)degpos.eq.ra;arith.diffDENdegDeclination (J2000) of the best LS8 counterpart from NWAY (CTP_NWAY_LS8_DEC)degpos.eq.dec;arith.diffNWAYdbayfacLogarithm of ratio between prior and posterior, from separation, positional error and number density (see Appx. in Salvato et al 2018 for clarifications) (CTP_NWAY_dist_bayesfactor)stat.fit.paramdoubleNWAYdistpoDistance posterior probability comparing this association vs. no association (see Appx. in Salvato et al 2018 for clarifications) (CTP_NWAY_dist_post)stat.fit.paramdoubleNWAYpsingleSame as dist_post, but weighted by the prior (CTP_NWAY_p_single) (3)stat.fit.goodnessdoubleNWAYpanyFor each entry in the X-ray catalogue, the probability that there is a counterpart in LS8 (CTP_NWAY_p_any) (3)stat.fit.goodnessdoubleNWAYpiRelative probability of the eROSITA/LS8 match (CTP_NWAY_p_i) (3)stat.fit.goodnessdoubleDistNWAYLESeparation between the Xray position and the best LS8 counterparts from NWAY (Dist_NWAY_LS8_ERO)arcsecpos.angDistance;src.orbitaldoubleGaiaEDR3? ID in Gaia EDR3 source catalog (GaiaEDR3_ID)meta.idnullablee_plx? Parallax error from Gaia EDR3 (GaiaEDR3_parallax_error)masstat.error;pos.parallaxfloatnullableRPlx? Parallax/Parallax error. ratio >5 SECURE GALACTIC (GaiaEDR3_parallax_over_error)stat.fit.omcdoublenullablepmRA? Proper motion in RA from Gaia EDR3 (GaiaEDR3_pmra)mas/yrpos.pm;pos.eq.radoublenullablee_pmRA? Error on Proper motion in RA from Gaia EDR3 (GaiaEDR3_pmra_error)mas/yrstat.error;pos.pm;pos.eq.rafloatnullablepmDE? Proper motion in Dec from Gaia EDR3 (GaiaEDR3_pmdec)mas/yrpos.pm;pos.eq.decdoublenullablee_pmDE? Error on Proper motion in Dec from Gaia EDR3 (GaiaEDR3_pmdec_error)mas/yrstat.error;pos.pm;pos.eq.decfloatnullableGmag? G band magnitude (VEGA) from Gaia EDR3 (GaiaEDR3_phot_g_mean_mag)magphot.mag;em.optdoublenullablee_Gmag? Error G band magnitude from Gaia EDR3 (GaiaEDR3_phot_g_mean_mag_error)magstat.error;phot.magdoublenullableBPmag? BP band magnitude (VEGA) from Gaia EDR3 (GaiaEDR3_phot_bp_mean_mag)magphot.mag;em.opt.Bdoublenullablee_BPmag? Error BP band magnitude from Gaia EDR3 (GaiaEDR3_phot_bp_mean_mag_error)magstat.error;phot.magdoublenullableRPmag? RP band magnitude (VEGA) from Gaia EDR3 (GaiaEDR3_phot_rp_mean_mag)magphot.mag;em.opt.Rdoublenullablee_RPmag? Error BP band magnitude from Gaia EDR3 (GaiaEDR3_phot_rp_mean_mag_error)magstat.error;phot.magdoublenullableFUV? Galex Far UV magnitude (AB) (FUV)magphot.mag;em.UV.100-200nmfloatnullablee_FUV? Galex Far UV magnitude error (FUV_ERR)magstat.errorfloatnullableNUV? Galex Near UV magnitude (AB) (NUV)magphot.mag;em.UVfloatnullablee_NUV? Galex Near UV magnitude error (NUV_ERR)magstat.errordoublenullableuKiDS? KiDS u-band magnitude (AB) (KiDS_u)magmeta.idfloatnullablee_uKiDS? KiDS u-band magnitude error (KiDS_u_ERR)magstat.errordoublenullablegKiDS? KiDS g-band magnitude (AB) (KiDS_g)magphot.mag;em.opt.Bfloatnullablee_gKiDS? KiDS g-band magnitude error (KiDS_g_ERR)magstat.errordoublenullablerKiDS? KiDS r-band magnitude (AB) (KiDS_r)magphot.mag;em.opt.Rfloatnullablee_rKiDS? KiDS r-band magnitude error (KiDS_r_ERR)magstat.errordoublenullableiKiDS? KiDS i-band magnitude (AB) (KiDS_i)magphot.mag;em.opt.Ifloatnullablee_iKiDS? KiDS i-band magnitude error (KiDS_i_ERR)magstat.errordoublenullablegHSC? HSC g-band cmodel magnitude (AB) (HSC_g)magphot.mag;em.opt.Bfloatnullablee_gHSC? HSC g-band cmodel magnitude error (HSC_g_ERR)magstat.errordoublenullablerHSC? HSC r-band cmodel magnitude (AB) when images are mostly from r-filter (HSC_r) (4)magphot.mag;em.opt.Rfloatnullablee_rHSC? HSC r-band cmodel magnitude error (HSC_r_ERR)magstat.errordoublenullabler2HSC? HSC r2-band cmodel magnitude (AB) when images are mostly from r2-filter (HSC_r2) (4)magphot.mag;em.opt.Rfloatnullablee_r2HSC? HSC r2-band cmodel magnitude error (HSC_r2_ERR)magstat.errordoublenullableiHSC? HSC i-band cmodel magnitude (AB) when images are mostly from i-filter (HSC_i) (4)magphot.mag;em.opt.Ifloatnullablee_iHSC? HSC i-band cmodel magnitude error (HSC_i_ERR)magstat.errordoublenullablei2HSC? HSC i2-band cmodel magnitude (AB) when images are mostly from i2-filter (HSC_i2) (4)magphot.mag;em.opt.Ifloatnullablee_i2HSC? HSC i2-band cmodel magnitude error (HSC_i2_ERR)magstat.errordoublenullablezHSC? HSC z-band cmodel magnitude (AB) (HSC_z)magphot.mag;em.opt.Ifloatnullablee_zHSC? HSC z-band cmodel magnitude error (HSC_z_ERR)magstat.errordoublenullableYHSC? HSC Y-band cmodel magnitude (AB) (HSC_Y)magphot.mag;em.IR.Jfloatnullablee_YHSC? HSC Y-band cmodel magnitude error (HSC_Y_ERR)magstat.errordoublenullablezVISTA? VISTA/VIKING z-band magnitude (AB) (VISTA_z)magphot.mag;em.opt.Ifloatnullablee_zVISTA? VISTA/VIKING z-band magnitude error (VISTA_z_ERR)magstat.errordoublenullableYVISTA? VISTA/VIKING Y-band magnitude (AB) (VISTA_Y)magphot.mag;em.IR.Jfloatnullablee_YVISTA? VISTA/VIKING Y-band magnitude error (VISTA_Y_ERR)magstat.errordoublenullableJVISTA? VISTA/VIKING J-band magnitude (AB) (VISTA_J)magphot.mag;em.IR.Jfloatnullablee_JVISTA? VISTA/VIKING J-band magnitude error (VISTA_J_ERR)magstat.errordoublenullableHVISTA? VISTA/VIKING H-band magnitude (AB) (VISTA_H)magphot.mag;em.IR.Hfloatnullablee_HVISTA? VISTA/VIKING H-band magnitude error (VISTA_H_ERR)magstat.errordoublenullableKsVISTA? VISTA/VIKING Ks-band magnitude (AB) (VISTA_Ks)magphot.mag;em.IR.Kfloatnullablee_KsVISTA? VISTA/VIKING Ks-band magnitude error (VISTA_Ks_ERR)magstat.errordoublenullablee_W1mag? LS8/Wise W1 magnitude error (W1_ERR)magstat.error;phot.magdoublenullableW2mag? LS8/Wise W2 magnitude (AB) (W2)magphot.mag;em.IR.4-8umdoublenullablee_W2mag? LS8/Wise W2 magnitude error (W2_ERR)magstat.error;phot.magdoublenullableW3mag? LS8/Wise W3 magnitude (AB) (W3)magphot.flux.density;em.IR.8-15umdoublenullablee_W3mag? LS8/Wise W3 magnitude error (W3_ERR)magstat.error;phot.magdoublenullableW4mag? LS8/Wise W4 magnitude (AB) (W4)magphot.flux.density;em.IR.15-30umdoublenullablee_W4mag? LS8/Wise W4 magnitude error (W4_ERR)magstat.error;phot.magdoublenullablegLS8? LS8 g-band magnitude (AB) (LS8_g)magphot.mag;em.opt.Bdoublenullablee_gLS8? LS8 g-band magnitude error (LS8_g_ERR)magstat.errordoublenullablerLS8? LS8 r-band magnitude (AB) (LS8_r)magphot.mag;em.opt.Rdoublenullablee_rLS8? LS8 r-band magnitude error (LS8_r_ERR)magstat.errordoublenullablezLS8? LS8 z-band magnitude (AB) (LS8_z)magphot.mag;em.opt.Idoublenullablee_zLS8? LS8 z-band magnitude error (LS8_z_ERR)magstat.errordoublenullableYVHS? VISTA/VHS Y-band magnitude (AB) (VHS_Y)magphot.mag;em.IR.Jfloatnullablee_YVHS? VISTA/VHS Y-band magnitude error (VHS_Y_ERR)magstat.errorfloatnullableHVHS? VISTA/VHS H-band magnitude (AB) (VHS_H)magphot.mag;em.IR.Hfloatnullablee_HVHS? VISTA/VHS H-band magnitude error (VHS_H_ERR)magstat.errorfloatnullableKsVHS? VISTA/VHS Ks-band magnitude (AB) (VHS_Ks)magphot.mag;em.IR.Kfloatnullablee_KsVHS? VISTA/VHS Ks-band magnitude error (VHS_Ks_ERR)magstat.errorfloatnullabledgHSC? Difference between psf and Kron magnitude in HSC g-band (AB) (HSC_g_diff)magphot.mag;arith.diffdoublenullabledrHSC? Difference between psf and Kron magnitude in HSC r-band (AB) (HSC_r_diff)magphot.mag;arith.diffdoublenullablediHSC? Difference between psf and Kron magnitude in HSC i-band (AB) (HSC_i_diff)magphot.mag;arith.diffdoublenullabledzHSC? Difference between psf and Kron magnitude in HSC z-band (AB) (HSC_z_diff)magphot.magdoublenullableinKiDS[0/1] Flag for KiDS coverage: 1: Source is in KiDS area; 0: otherwise (in_KiDS_flag)meta.codeintinHSC[0/1] Flag for HSC coverage: 1: Source is in HSC area as from Aihara et al. (2018PASJ...70S...4A); 0: otherwise (in_HSC_flag)meta.codeintzpPhotoz from Le PHARE, but set to 0 for GALACTIC sources (PHZ_LePHARE_zphot)src.redshift.photdoubleb-zpLe PHARE zphot min at 1 sigma (PHZ_LePHARE_zl68)stat.errorfloatB-zpLe PHARE zphot max at 2 sigma (PHZ_LePHARE_zu68)stat.errorfloatb2-zpLe PHARE zphot min at 2 sigma (PHZ_LePHARE_zl90)stat.errorfloatB2-zpLe PHARE zphot max at 3 sigma (PHZ_LePHARE_zu90)stat.errorfloatb3-zpLe PHARE zphot min at 3 sigma (PHZ_LePHARE_zl99)stat.errorfloatB3-zpLe PHARE zphot max at 3 sigma (PHZ_LePHARE_zu99)stat.errorfloatchi2Le PHARE chi2 value for best fitting galaxy/AGN template (PHZ_LePHARE_chi2)stat.fit.chi2doublemodelAGNLe PHARE model number for best template fitting the data (for PLIKE 1000+model number) (PHZ_LePHARE_modelAGN)meta.idintExtlaw[0/1]? Le PHARE Extinction Law applied to the template: Prevot (1) or none (0) (PHZ_LePHARE_extlaw)stat.fit.paramintnullableE(B-V)Le PHARE E(B-V) applied to the template (PHZ_LePHARE_EBV)phot.color.excessdoublepzpLe Phare probability distribution. Photoz more reliable when value is high (PHZ_LePHARE_pdz)stat.fit.goodnessfloatNbandLe Phare number of bands used for the computation of photoz (PHZ_LePHARE_nband)meta.numberintzpb-2? Phare second best photoz from LePhare, if existing (PHZ_LePHARE_zphot_2)src.redshift.photfloatnullablechi2-2Le Phare chi2 value for second best fitting template, if existing (PHZ_LePHARE_chi2_2)stat.fit.chi2doublemodelAGN-2Le Phare second best template fitting the data, if existing (PHZ_LePHARE_modelAGN_2)meta.id;stat.fitintpzp-2Le Phare probability distribution for secondary solution, if existing (PHZ_LePHARE_pdz_2)stat.fit.goodnessdoubleDNNzp? Photoz from DNNZ (from Nishizawa et al.,), but set to 0 for GALACTIC sources (PHZ_DNNZ_zphot)src.redshift.photdoublenullablebDNNzp? DNNz zphot min at 1 sigma (PHZ_DNNz_zl68)src.redshift.photdoublenullableBDNNzp? DNNz zphot max at 1 sigma (PHZ_DNNz_zu68)src.redshift.photdoublenullableb_DNNzp? DNNz zphot min at 2 sigma (PHZ_DNNz_zl95)stat.stdev;stat.mindoublenullableB_DNNzp? DNNz zphot max at 2 sigma (PHZ_DNNz_zu95)stat.stdev;stat.maxdoublenullablezFFinal redshift: zspec when available, else photo-z from Le PHARE; 0 for GALACTIC sources (CTP_REDSHIFT)src.redshift;pos.heliocentricdoublezgrade[2/5] In a range from 5 (spectroscopy) to 0 (unreliable photo-z) (CTP_REDSHIFT_GRADE)meta.code.qualintCTPClassN[0/3] Same as CTP_classification, but with numbers: 3: SECURE EXTRAGALACTIC; 2: LIKELY EXTRAGALACTIC; 1: SECURE GALACTIC; 0: LIKELY GALACTIC (CTP_CLASS)meta.code.classintClClass[1/5] Range from 5 (most likely a cluster) to 1 (not a cluster) (see Salvato+2021) (CLUSTER_CLASS)meta.code.classintField[0]? SDSS field sequence number (FIELD)meta.id;obs.fieldintnullableCatalogId? SDSS catalog ID (CATALOGID)meta.id;meta.tablenullableSepLS8-SDSS? Distance between matched objects along a great circle (Sep_LS8_SDSS)arcsecpos.angDistance;src.orbitaldoublenullableNspec[1/5]? SDSS number of spectra (NSPEC)meta.numberintnullableSNMedianAll? SDSS median Signal to Noise over the entire spectral range (SN_MEDIAN_ALL)stat.snrdoublenullablez? SDSS best redshift fit (Z)src.redshiftdoublenullablee_z[]? SDSS redshift error (Z_ERR)stat.error;src.redshiftdoublenullablezWarning? SDSS redshift measurement warning flag (ZWARNING)meta.codedoublenullableID-SRCL? ID of the sources in the eFEDS main X-ray catalog (Paper I) (ID_SRC) (5)meta.idintnullablezL? The redshift adopted for the spectral model (Redshift) (5)src.redshiftdoublenullableNewClass[2/3]? Updatd classification of the optical counterpart (New_Class) (5)meta.codeintnullableNewquality[2/4]? Updated counterpart quality (New_quality) (5)meta.code.qualintnullableRACdeg? Right ascension (J2000), astrometric corrected (Paper I) (RA_CORR) (5)degpos.eq.ra;arith.diffnullableDECdeg? Declination (J2000), astrometric corrected (Paper I) (DEC_CORR) (5)degpos.eq.dec;arith.diffnullableDetLikeL? 0.2-2.3 keV source detection likelihood (Paper I) (DET_LIKE) (5)stat.likelihooddoublenullableinArea90[0/1] Whether located inside the inner 90%-area region of eFEDS (Paper I) (inArea90) (5)meta.codeintEDRQual[0/4]? Counterpart quality (Paper II). A value >=2 is recommended. (EDR_QUALITY) (6)meta.code.qualintnullableEDRClass[0/3]? Classification of the optical counterpart (Paper II). 0:likely Galactic;1:secure Galac.; 2:likely extraGalactic; 3:secure extraGalac. (EDR_CLASS) (6)meta.code.classintnullableEDRz? Redshift of the optical counterpart (Paper II) (EDR_REDSHIFT) (6)src.redshift.photdoublenullableLxModel[1/5]? Index of selected model for luminosity measurement. 1:single-powerlaw; 3:powerlaw+bb; 4:powerlaw with Gamma (LxModel) (6)meta.id;stat.fitintnullableNHClass[1/4]? Class of AGN NH measurement with model 1 (single-powerlaw). 1: uninformative; 2: unobscured; 3: mildly-measured; 4: well-measured (NHclass) (6)meta.code.classintnullableFSModel[3/6]? Index of selected model for 0.5-2keV flux. 5: counts-based measurement for faint sources; 3,6,or 0: robust spectra-based measurement (FSModel) (6)meta.id;stat.fitintnullableFHModel[5/7]? Index of selected model for 2.3-5keV flux. 5: counts-based measurement for faint sources; 7: robust spectra-based measurement (FHModel) (6)meta.id;stat.fitintnullablegalNH? Total column density of Galactic absorption (galNH) (6)phys.columnDensitydoublenullablegalNHI? HI column density from HI4PI (galNHI) (6)phys.columnDensitydoublenullableSrcCts? Source net counts in the 0.2-5 keV band (SrcCts) (6)ctphot.count;em.X-raydoublenullableDRSDSS data release (DR)meta.id;obscharFluxcMedS? Absorption corrected flux in observed 0.5-2 keV, posterior median (FluxCorr_Med_s) (6)mW.m**-2phot.flux;em.X-raydoublenullableb_FluxcS? Absorption corrected flux in observed 0.5-2 keV, 1sigma lower limit (FluxCorr_Lo1_s) (6)mW.m**-2phot.flux;em.X-ray.softdoublenullableB_FluxcS? Absorption corrected flux in observed 0.5-2 keV, 1sigma upper limit (FluxCorr_Up1_s) (6)mW.m**-2phot.flux;em.X-ray.softdoublenullableFluxcMedT? Absorption corrected flux in observed 2.3-5 keV, posterior median (FluxCorr_Med_t) (6)mW.m**-2phot.flux;em.X-raydoublenullableb_FluxcT? Absorption corrected flux in observed 2.3-5 keV, 1sigma lower limit (FluxCorr_Lo1_t) (6)mW.m**-2phot.flux;em.X-ray.mediumdoublenullableB_FluxcT? Absorption corrected flux in observed 2.3-5 keV, 1sigma upper limit (FluxCorr_Up1_t) (6)mW.m**-2phot.flux;em.X-ray.mediumdoublenullableFluxIMedS? From Liu et al. (2022), Absorption corrected flux in rest-frame 0.5-2 keV, posterior median (FluxIntr_Med_s) (6)mW.m**-2phot.flux;em.X-raydoublenullableb_FluxIS? Absorption corrected flux in rest-frame 0.5-2keV, 1sigma lower limit (FluxIntr_Lo1_s) (6)mW.m**-2phot.flux;em.X-ray.softdoublenullableB_FluxIS? Absorption corrected flux in rest-frame 0.5-2keV, 1sigma upper limit (FluxIntr_Up1_s) (6)mW.m**-2phot.flux;em.X-ray.softdoublenullableFluxIMed2keV? Absorption corrected flux at rest-frame 2keV, median (FluxIntr_Med_2keV) (6)mW.m**-2.eV**-1phot.flux;em.X-raydoublenullableb_FluxI2keV? Absorption corrected flux at rest-frame 2keV, 1sigma lower limit (FluxIntr_Lo1_2keV) (6)mW.m**-2.eV**-1phot.fluxdoublenullableB_FluxI2keV? Absorption corrected flux at rest-frame 2keV, 1sigma upper limit (FluxIntr_Up1_2keV) (6)mW.m**-2.eV**-1phot.fluxdoublenullableLumIMed2keV? Intrinsic luminosity at rest-frame 2keV, posterior median (LumiIntr_Med_2keV) (6)1e-07W.eV**-1phys.luminosity;em.X-raydoublenullableb_LumI2keV? Intrinsic luminosity at rest-frame 2keV, 1sigma lower limit (LumiIntr_Lo1_2keV)1e-07W.eV**-1phys.luminositydoublenullableB_LumI2keV? Intrinsic luminosity at rest-frame 2keV, 1sigma upper limit (LumiIntr_Up1_2keV) (6)1e-07W.eV**-1phys.luminositydoublenullableFluxObsMedS? Observed flux in observed 0.5-2 keV, posterior median (FluxObsv_Med_s) (6)mW.m**-2phot.flux;em.X-raydoublenullableb_FluxObsS? Observed flux in observed 0.5-2 keV, 1sigma lower limit (FluxObsv_Lo1_s) (6)mW.m**-2phot.flux;em.X-ray.softdoublenullableB_FluxObsS? Observed flux in observed 0.5-2 keV, 1sigma upper limit (FluxObsv_Up1_s) (6)mW.m**-2phot.flux;em.X-ray.softdoublenullableFluxObsMedT? Observed flux in observed 2.3-5 keV, posterior median (FluxObsv_Med_t) (6)mW.m**-2phot.flux;em.X-raydoublenullableb_FluxObsT? Observed flux in observed 2.3-5 keV, 1sigma lower limit (FluxObsv_Lo1_t) (6)mW.m**-2phot.flux;em.X-ray.mediumdoublenullableB_FluxObsT? Observed flux in observed 2.3-5 keV, 1sigma upper limit (FluxObsv_Up1_t)mW.m**-2phot.flux;em.X-ray.mediumdoublenullablelognHKLm1? log AGN column density, KL divergence (in nats units) (lognH_KL_m1) (6)phys.columnDensitydoublenullableb_lognHm1? log AGN column density, HDI lower limit (lognH_HLo_m1) (6)log(cm**-2)phys.columnDensity;stat.minfloatnullableB_lognHm1? log AGN column density, HDI upper limit (lognH_HUp_m1) (6)log(cm**-2)phys.columnDensity;stat.maxfloatnullablelognHMedm1? log AGN column density, posterior median (lognH_Med_m1) (6)log(cm**-2)phys.columnDensityfloatnullableGammaKLm3? Primary power-law slope in model 3, KL divergence (in nats units) (Gamma_KL_m3) (6)spect.indexdoublenullableb_GammaHm3? Primary power-law slope in model 3, HDI lower limit (Gamma_HLo_m3) (6)arith.grad;stat.param;meta.modelleddoublenullableB_GammaHm3? Primary power-law slope in model 3, HDI upper limit (Gamma_HUp_m3) (6)arith.grad;stat.param;meta.modelleddoublenullableGammaMedm3? Primary power-law slope in model 3, posterior median (Gamma_Med_m3) (6)spect.indexdoublenullablelogZm0? log Bayesian evidence with model 0: APEC (logZ_m0) (6)stat.fit.paramdoublenullablelogZm1? log Bayesian evidence with model 1: single powerlaw (logZ_m1) (6)stat.fit.paramdoublenullablelogZm2? log Bayesian evidence with model 2: double powerlaw (logZ_m2) (6)stat.fit.paramdoublenullablelogZm3? log Bayesian evidence with model 3: powerlaw + blackbody (logZ_m3) (6)stat.fit.paramdoublenullablelogZm4? log Bayesian evidence with model 4: powerlaw with Gamma fixed at 2.0 (logZ_m4) (6)stat.fit.paramdoublenullablelogZm5? log Bayesian evidence with model 5: shape-fixed powerlaw (logZ_m5) (6)stat.fit.paramdoublenullableMJD? SDSS modified Julian date of observation (MJD)dtime.epochintnullableindexedNameeROSITA official source Name (ERO_Name) (1)meta.id;meta.maincharCtpLS8LS8 unique id for ctp to the eROSITA source (CTP_LS8_UNIQUE_OBJID) (2)meta.idcharNWAYCtpLS8LS8 Unique OBJECTID of the best LS8 counterpart from NWAY (CTP_NWAY_LS8_UNIQUE_OBJID)meta.idcharLS8TypeMorphological model from LS8 (CTP_LS8_TYPE)src.morph.typecharCTPClassSECURE/LIKELY GALACTIC/ EXTRAGALACTIC, as from flowchart (see Salvato+2021) (CTP_Classification)meta.code.classcharRun2DSDSS tagged version of idlspec2d that was used to reduce the SDSS BOSS spectra (RUN2D)meta.id;obscharSampleeROSITA sample (SAMPLE)src.samplecharJ/A+A/698/A132/spectraSpectroscopic compilation and visual inspection results for the eFEDS samplespzHasVi[0/1] True if best spec-z for this object has a visual inspection (SPECZ_HASVI)meta.codeintspzBitMaskBitmask encoding catalogues containing spec-z for this object. Bit encoding: 0=sdssv_vi; 1=boss_vi; 2=sdss_vi; ... (SPECZ_BITMASK)meta.codeintspzSelBitMaskBitmask encoding catalogues containing informative spec-z for an object. Bit encoding is the same as specz_bitmask (SPECZ_SEL_BITMASK)meta.codeintspzFlags[0/1] Bitmask encoding quality flags for this object. Bit encoding: 0=No Legacy Survey DR9 counterpart ... 4=Disagreement between classifications (SPECZ_FLAGS)meta.code.qualintspzSelNormQMaxHighest NORMQ of informative spec-z for this object (SPECZ_SEL_NORMQ_MAX)meta.codeintspzSelNormQMean? Mean NORMQ of informative spec-z for this object (SPECZ_SEL_NORMQ_MEAN)meta.codedoublenullablespzSelzmean? Mean redshift of informative spec-z for this object (SPECZ_SEL_Z_MEAN)src.redshift;pos.heliocentricdoublenullablespzSelzmed? Median redshift of informative spec-z for this object (SPECZ_SEL_Z_MEDIAN)src.redshift;pos.heliocentricdoublenullablespzSelzstddev? Standard deviation of redshifts for informative spec-z for object (SPECZ_SEL_Z_STDDEV)stat.stdevdoublenullableOz? Orig. redshift value of individual spec-z measurement (ORIG_REDSHIFT)src.redshift;pos.heliocentricdoublenullableOQualOrig. redshift quality value of individual spec-z measurement (ORIG_QUAL)meta.code.qualcharONormQNormalised redshift quality of individual spec-z measurement (ORIG_NORMQ)meta.code.qualintOClassOrig. classification label of individual spec-z measurement (ORIG_CLASS)meta.code.class;src.classcharOHasVi[0/1] True if individual spec-z has a visual inspection from our team (ORIG_HASVI)meta.codeintONormCNormalised classification code of individual spec-z measurement (ORIG_NORMC)meta.code.classcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLS-IDX? Index for internal use only (LS_IDX)meta.idintnullableLS-ID? Unique ID of Legacy Survey DR9 photometric object associated with the spec-z. Computed from Legacy Survey DR9 catalogue as ls_id = objid + (brickid<<16)+(release<<40) (LS_ID)meta.id;meta.mainnullableRAL? Coordinate from Legacy Survey DR9 (J2000) at epoch LSepoch (LS_RA)degpos.eq.ra;arith.diffnullableindexedDEL? Coordinate from Legacy Survey DR9 (J2000) at epoch LSepoch (LS_DEC)degpos.eq.ra;arith.diffnullableindexedpmRA? Proper motion from Legacy Survey DR9 (LS_PMRA)mas/yrpos.pm;pos.eq.radoublenullablepmDE? Proper motion from Legacy Survey DR9 (LS_PMDEC)mas/yrpos.pm;pos.eq.decdoublenullableLSepoch? Coordinate epoch from Legacy Survey DR9 (LS_EPOCH)yrtime.epochfloatnullableindexedgmag? DECam g-band model magnitude derived from Legacy Survey DR9, AB (LS_MAG_G)magphot.mag;em.opt.Bdoublenullablermag? DECam r-band model magnitude derived from Legacy Survey DR9, AB (LS_MAG_R)magphot.mag;em.opt.Rdoublenullablezmag? DECam z-band model magnitude derived from Legacy Survey DR9, AB (LS_MAG_Z)magphot.mag;em.opt.IdoublenullableNzsp? Total number of spec-z associated with this Legacy Survey DR9 object (SPECZ_N)meta.numberintnullableRAzdegCoordinate of spec-z, propagated if necessary to epoch J2000 (SPECZ_RAJ2000)degpos.eq.ra;meta.mainDEzdegCoordinate of spec-z, propagated if necessary to epoch J2000 (SPECZ_DEJ2000)degpos.eq.dec;meta.mainNzspselNumber of spec-z selected to inform result for this object (SPECZ_NSEL)meta.numberintzspRank[1/3] Rank of this particular spec-z (1=best, >1=less favoured, 0=not selected) (SPECZ_RANK)stat.fit.paramintzsp? Final redshift determined for this object (SPECZ_REDSHIFT)src.redshiftdoublenullablespzNormQFinal normalised redshift quality (NORMQ) associated with this object (see section 3) (SPECZ_NORMQ)meta.code.qualintzspAllNVINumber of spec-z with VIs for this object (SPECZ_ALL_NVI)meta.numberintzspAllNormQMaxHighest NORMQ of all spec-z for this object (SPECZ_ALL_NORMQMAX)meta.codeintzspAllNormQMean? Mean NORMQ of all spec-z for this object (SPECZ_ALL_NORMQMEAN)meta.codedoublenullablezspAllMean? Mean redshift of all spec-z for this object (SPECZ_ALL_Z_MEAN)src.redshift;pos.heliocentricdoublenullablezspAllMedian? Median redshift of all spec-z for this object (SPECZ_ALL_Z_MEDIAN)src.redshift;pos.heliocentricdoublenullablezspAllStdDev? Standard deviation of redshifts for all spec-z for this object (SPECZ_ALL_Z_STDDEV)stat.stdevdoublenullableRAOdegCoordinate associated with individual spec-z measurement (ORIG_RA)degpos.eq.ra;arith.diffDEOdegCoordinate associated with individual spec-z measurement (ORIG_DEC)degpos.eq.ra;arith.diffEpochOCoordinate epoch associated with individual spec-z measurement (ORIG_POS_EPOCH)time.epochfloatspzO-LSsepDistance from spec-z to Legacy Survey DR9 photometric counterpart (corrected for proper motion) (ORIG_LS_SEP)arcsecpos.angDistance;src.orbitaldoublespzOLSGT1ctp[0/1] Can spec-z be associated with >1 possible Legacy Survey DR9 counterpart? (ORIG_LS_GT1CTP)meta.codeintspzOLSctpRankRank of counterpart out of all possibilities for this spec-z (1=closest) (ORIG_LS_CTP_RANK)meta.codeintOCatCodeCatalogue code of individual spec-z (ORIG_CATCODE)meta.code;meta.tablecharOBitMaskBitmask encoding catalogue providing spec-z for this spec-z measurement. See specz_bitmask column (ORIG_BITMASK)meta.codeintspzNormCFinal normalised classification determined for this object (SPECZ_NORMC)meta.code.classcharspzCatCodeCatalogue code of best spec-z for this object (see table 1) (SPECZ_CATCODE)meta.code;meta.tablecharOIDColName of column in original catalogue supplying ORIG_ID value (ORIG_ID_COL)meta.notecharOQualColName of column in original catalogue supplying ORIG_QUAL value (ORIG_QUAL_COL)meta.notecharOZColName of column in original catalogue supplying ORIG_REDSHIFT value (ORIG_REDSHIFT_COL)meta.notecharOClassColName of column in original catalogue supplying ORIG_CLASS value (ORIG_CLASS_COL)meta.notecharOIDOrig. value of ID of individual spec-z measurement (as a string) (ORIG_ID)meta.id;stat.valuechar