The Stripe 82-XL catalog (S82-XL)

The Stripe 82-XL catalog (S82-XL)J/ApJ/974/156ivo://CDS.VizieR/J/ApJ/974/156doi:10.26093/cds/vizier.19740156CDSPeca A.Cappelluti N.LaMassa S.Urry C.M.Moscetti M.Marchesi S.,Sanders D.Auge C.Ghosh A.Ananna T.T.Torres-Alba N.Treister E.2025-03-07T20:10:45Z2025-02-03T14:39:36ZCDS support team

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

cds-question@unistra.frx-ray-sourcesastronomical-object-identificationredshiftedvisible-astronomyspectroscopyactive-galactic-nucleiquasarsWe present an enhanced version of the publicly available Stripe 82X catalog (S82-XL), featuring a comprehensive set of 22737 unique X-ray point sources identified with a significance >~4{sigma}. This catalog is four times larger than the original Stripe 82X catalog, by including additional archival data from the Chandra and XMM-Newton telescopes. Now covering ~54.8deg^2^ of nonoverlapping sky area, the S82-XL catalog roughly doubles the area and depth of the original catalog, with limiting fluxes (half-area fluxes) of 3.4x10^-16^ (2.4x10^-15^), 2.9x10^-15^ (1.5x10^-14^), and 1.4x10^-15^ (9.5x10^-15^)erg/s/cm2 across the soft (0.5-2keV), hard (2-10keV), and full (0.5-10keV) bands, respectively. S82-XL occupies a unique region of flux-area parameter space compared to other X-ray surveys, identifying sources with rest-frame luminosities from 1.2x10^38^ to 1.6x10^47^erg/s in the 2-10keV band (median X-ray luminosity, 7.2x10^43^erg/s), and spectroscopic redshifts up to z~6. By using hardness ratios, we derived the obscuration of active galactic nuclei (AGNs), obtaining a median value of log(N_H_/cm^2^)=21.6_-1.6_^+1.0^ and an overall, obscured fraction (log(N_H_/cm^-2^)>22) of ~36.9%. S82-XL serves as a benchmark in X-ray surveys and, with its extensive multiwavelength data, is especially valuable for comprehensive studies of luminous AGNs.2024ApJ...974..156Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/974/156CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/xmm : XMM-Newton Obs. Log (XMM-Newton Science Operation Center, 2012-)B/chandra : The Chandra Archive Log (CXC, 1999-2014)VIII/76 : Leiden/Argentine/Bonn (LAB) Survey of Galactic HI (Kalberla+ 2005)II/319 : UKIDSS-DR9 LAS, GCS and DXS Surveys (Lawrence+ 2012)VIII/92 : The FIRST Survey Catalog, Version 2014Dec17 (Helfand+ 2015)IX/57 : The Chandra Source Catalog (CSC), Release 2.0 (Evans+, 2019)V/154 : Sloan Digital Sky Surveys (SDSS), Release 16 (DR16) (Ahumada+, 2020)III/286 : APOGEE-2 DR17 final allStar catalog (Abdurro'uf+, 2022)IX/66 : 4XMM-DR11s serendipitous source cat. from stacks (Traulsen+, 2022)IX/68 : XMM-Newton Serendipitous Source Catalogue 4XMM-DR12 (Webb+, 2023)IX/69 : XMM-Newton Serendipitous Source Catalogue 4XMM-DR13 (Webb+, 2023)J/ApJS/172/29 : XMM-Newton survey in COSMOS field. I. (Hasinger+, 2007)J/A+A/497/635 : XMM-Newton wide-field survey in COSMOS (Cappelluti+, 2009)J/A+A/493/339 : XMM-Newton serendipitous Survey. V. (Watson+, 2009)J/ApJS/195/10 : The CDF-S survey: 4Ms source catalogs (Xue+, 2011)J/ApJS/202/6 : XDEEP2 survey catalog (Goulding+, 2012)J/MNRAS/436/3581 : X-ray observations of Stripe 82 (LaMassa+, 2013)J/A+A/564/A125 : AGN Torus model comparison of AGN in the CDFS (Buchner+, 2014)J/ApJS/210/22 : Herschel Stripe 82 survey (HerS) first catalog (Viero+, 2014)J/ApJS/220/10 : AEGIS-X Deep survey of EGS (AEGIS-XD) (Nandra+, 2015)J/A+A/577/A121 : The XMM-ATLAS catalogues (Ranalli+, 2015)J/ApJ/823/95 : CANDELS GOODS-S Chandra counterparts (Cappelluti+, 2016)J/ApJ/819/62 : The COSMOS-Legacy Survey (CLS) catalog (Civano+, 2016)J/MNRAS/456/1359 : IAC Stripe 82 Legacy Project: Photometry (Fliri+, 2016)J/ApJ/817/172 : X-ray Observations of Stripe 82 (LaMassa+, 2016)J/ApJ/817/34 : C-COSMOS Legacy sources multiwavelength cat. (Marchesi+, 2016)J/ApJS/225/1 : SpIES: the Spitzer IRAC Equatorial Survey (Timlin+, 2016)J/ApJS/224/15 : Improved 2Ms and 250ks Chandra catalogs (Xue+, 2016)J/ApJ/850/66 : Stripe 82X survey multiwavelength catalog (Ananna+, 2017)J/ApJS/232/8 : 16yrs of AGNs X-ray sp. analyses from 7Ms CDF-S (Liu+, 2017)J/ApJS/228/2 : Chandra Deep Field-South survey: 7Ms sources (Luo+, 2017)J/MNRAS/478/2132 : XMM-LSS field. XMM-Newton point-source cat. (Cheng+, 2018)J/ApJS/236/48 : The Chandra UDS survey (X-UDS) (Kocevski+, 2018)J/ApJ/876/50 : X-ray & MIR AGNs in Stripe 82 with eBOSS sp. (LaMassa+, 2019)J/ApJS/251/2 : CDWFS: Chandra survey in Bootes. I. X-ray cat. (Masini+, 2020)J/ApJS/256/21 : XMM-SERVS: X-ray sources for W-CDF-S & ELAIS-S1 (Ni+, 2021)J/A+A/661/A1 : The eFEDS X-ray catalogs (V7.4) (Brunner+, 2022)J/ApJ/943/162 : 31.3 deg^2^ Stripe 82X spectral analysis (Peca+, 2023)J/A+A/675/A65 : AGN absorbing column densities (Silver+, 2023)J/A+A/682/A34 : SRG/eROSITA all-sky survey catalogs (eRASS1) (Merloni+, 2024)J/ApJ/974/235 : Stripe 82X DR3 catalog: new sp. redshifts (LaMassa+, 2024)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/974/156https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/974/156http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/974/156https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/974/156https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/974/156http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/974/156GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/974/156/table2 (S82-XL catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/974/156/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/974/156/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/974/156/table2?GETtext/xml+votable180.050000true0.00949770.62758340.0055555555555555565/4438 4441-4442 4451 4453-4454 4457-4458 4460 4500-4502 4504-4505 4518 4522 4524 4528 4693-4694 4696-4697 4709 4716 4720 4758 4761 4775 4777 5787 5796 5801-5803 6/0 12288 12290 17406-17407 17659 17662-17663 17725 17727 17741-17743 17745-17750 17758 17761-17763 17772-17773 17775-17778 17780 17809 17811 17820 17822 17825-17827 17836 17848 17856 17860 17980 17991 17997 17999 18012-18014 18024-18025 18027-18029 18032 18034-18036 18055 18061-18063 18065 18067 18069 18071 18076-18078 18081 18083-18086 18092 18094 18176 18683 18686-18687 18763 18766-18767 18780-18782 18793-18796 18798 18800-18801 18823 18829 18835 18841 18844-18845 18852 18858 18862 19021 19023 19025-19030 19036 19038 19041-19043 19050 19053 19056 19058 19064 19085 19087 19089 19091 19094-19097 19099 19112 19114 19136 19202 19204 19208 19456-19458 23102 23138 23142-23146 23182-23183 23190-23192 23194-23198 23201 23216-23218 23220 23224 23232 23234 30028-30029 30031 30033 30035 30037 30039-30040 30044-30045 30103 30146 36859 36861 36863https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/974/156?format=asciiX-rayOpticaldefaultJ/ApJ/974/156/table2S82-XL catalogrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordinte_F1-4XMMs[2e-17/2.8e-14]? The 1{sigma} uncertainty in F1-4XMMsmW.m**-2stat.error;phot.flux;em.X-ray.softdoublenullableRA4XMMSdeg? 4XMMs Right Acension (J2000)degpos.eq.ranullableCTb-CSC2p1[2.86/8600]? ACIS counts in 0.5-7 keVctphot.count;em.X-rayfloatnullablee_LHard[1.3e+38/1.6e+47]? The 1{sigma} uncertainty in LHard1e-07Wstat.error;phys.luminosity;em.X-ray.mediumdoublenullableRAPLUGdeg? SDSS plug-plate catalog DR17 Right Ascension (J2000)degpos.eq.ra;em.optnullableDEPLUGdeg? SDSS plug-plate catalog DR17 Declination (J2000)degpos.eq.dec;em.optnullableSeq[0/22736] Unique Stripe 82 XL survey identifier (1)meta.id;meta.mainintRAJ2000Right Acension (J2000) (2)degpos.eq.ra;meta.mainindexedDEJ2000[-1.5/1.5] Declination (J2000) (2)degpos.eq.dec;meta.mainindexedErrPos[0.01/49] Positional uncertainty (2)arcsecstat.error;posfloat4XMM4XMM DR12 catalog identifier (JHHMMSS.s+DDMMSS)meta.id.crosscharOBS-4XMM4XMM DR12 catalog XMM observation identifier (s)meta.id;obscharRA4XMMdeg? 4XMM Right Acension (J2000)degpos.eq.ranullableDE4XMMdeg? 4XMM Declination (J2000)degpos.eq.decnullableF1-4XMM[1.5e-19/1.4e-11]? 4XMM 0.2-0.5keV flux; erg/s/cm^2^mW.m**-2phot.flux;em.X-ray.softdoublenullablee_F1-4XMM[2.2e-17/5e-14]? The 1{sigma} uncertainty in F1-4XMMmW.m**-2stat.error;phot.flux;em.X-ray.softdoublenullableF2-4XMM[8.8e-24/2.5e-11]? 4XMM 0.5-1keV flux; erg/s/cm^2^mW.m**-2phot.flux;em.X-ray.softdoublenullablee_F2-4XMM[2e-17/6e-14]? The 1{sigma} uncertainty in F2-4XMMmW.m**-2stat.error;phot.flux;em.X-ray.softdoublenullableF3-4XMM[1.8e-20/2.5e-11]? 4XMM 1-2keV flux; erg/s/cm^2^mW.m**-2phot.flux;em.X-ray.softdoublenullablee_F3-4XMM[2.9e-17/6.1e-14]? The 1{sigma} uncertainty in F3-4XMMmW.m**-2stat.error;phot.flux;em.X-ray.softdoublenullableF4-4XMM[1.4e-19/2.3e-11]? 4XMM 2-4.5keV flux; erg/s/cm^2^mW.m**-2phot.flux;em.X-ray.mediumdoublenullablee_F4-4XMM[1e-16/1.4e-13]? The 1{sigma} uncertainty in F4-4XMMmW.m**-2stat.error;phot.flux;em.X-ray.mediumdoublenullableF5-4XMM[2.5e-27/1.6e-11]? 4XMM 4.5-12keV flux; erg/s/cm^2^mW.m**-2phot.flux;em.X-ray.mediumdoublenullablee_F5-4XMM[4.8e-16/8.2e-13]? The 1{sigma} uncertainty in F5-4XMMmW.m**-2stat.error;phot.flux;em.X-ray.mediumdoublenullableF8-4XMM[3e-16/10e-11]? 4XMM 0.2-12 keV flux; erg/s/cm^2^mW.m**-2phot.flux;em.X-raydoublenullablee_F8-4XMM[6e-16/8.2e-13]? The 1{sigma} uncertainty in F8-4XMMmW.m**-2stat.error;phot.flux;em.X-raydoublenullableCTS8-4XMM[5.7/532634]? 4XMM 0.2-12 keV countsctphot.count;em.X-raydoublenullablee_CTS8-4XMM[2.9/31807]? The 1{sigma} uncertainty in CTS8-4XMMctstat.error;phot.count;em.X-raydoublenullableRATE8-4XMM[0.00038/77]? 4XMM 0.2-12 keV count ratect/sarith.rate;phot.count;em.X-raynullablee_RATE8-4XMM[0.00013/1.6]? The 1{sigma} uncertainty in RATE8-4XMMct/sstat.error;phot.count;em.X-raydoublenullableRATE512-4XMM[1.5e-06/56.2]? 4XMM 0.5-12 keV count ratect/sarith.rate;phot.count;em.X-raynullablee_RATE512-4XMM[5.2e-05/1.6]? The 1{sigma} uncertainty in RATE512-4XMMct/sstat.error;phot.count;em.X-raydoublenullableRATE52-4XMM[5.7e-07/50.4]? 4XMM 0.5-2 keV count ratect/sarith.rate;phot.count;em.X-ray.softnullablee_RATE52-4XMM[2.6e-07/22.7]? The 1{sigma} uncertainty in RATE52-4XMM (0.45 * RATE52-4XMM)ct/sstat.error;phot.count;em.X-ray.softdoublenullableRATE212-4XMM[7.3e-07/5.8]? 4XMM 2-12 keV count ratect/sarith.rate;phot.count;em.X-ray.mediumnullablee_RATE212-4XMM[3.8e-05/1.6]? The 1{sigma} uncertainty in RATE212-4XMMct/sstat.error;phot.count;em.X-ray.mediumdoublenullableHR-4XMM[-1/1]? 4XMM hardness ratio using 0.5-2 and 2-12 keVphot.flux;arith.ratio;em.X-rayfloatnullableb_HR-4XMM[-1/1]? Lower 1{sigma} value in HR-4XMMstat.error;stat.min;arith.ratiofloatnullableB_HR-4XMM[-1/1]? Upper 1{sigma} value in HR-4XMMstat.error;stat.max;arith.ratiofloatnullable4XMMs4XMMs DR12 catalog identifier (JHHMMSS.s+DDMMSS)meta.id.crosscharOBS-4XMMs4XMMs DR12 catalog XMM observation identifier (s)meta.id;obscharDE4XMMSdeg? 4XMMs Declination degrees (J2000)degpos.eq.decnullableF1-4XMMs[2e-22/5.9e-12]? 4XMMs 0.2-0.5 keV flux; erg/s/cm^2^mW.m**-2phot.flux;em.X-ray.softdoublenullableF2-4XMMs[2.8e-20/6.8e-12]? 4XMMs 0.5-1 keV flux; erg/s/cm^2^mW.m**-2phot.flux;em.X-ray.softdoublenullablee_F2-4XMMs[2e-17/3.4e-14]? The 1{sigma} uncertainty in F2-4XMMsmW.m**-2stat.error;phot.flux;em.X-ray.softdoublenullableF3-4XMMs[1.6e-19/3e-12]? 4XMMs 1-2 keV flux; erg/s/cm^2^mW.m**-2phot.flux;em.X-ray.softdoublenullablee_F3-4XMMs[2.8e-17/3.2e-14]? The 1{sigma} uncertainty in F3-4XMMsmW.m**-2stat.error;phot.flux;em.X-ray.softdoublenullableF4-4XMMs[3.6e-19/3.6e-12]? 4XMMs 2-4.5 keV flux; erg/s/cm^2^mW.m**-2phot.flux;em.X-ray.mediumdoublenullablee_F4-4XMMs[9.4e-17/7e-14]? The 1{sigma} uncertainty in F4-4XMMsmW.m**-2stat.error;phot.flux;em.X-ray.mediumdoublenullableF5-4XMMs[1.2e-18/6.3e-12]? 4XMMs 4.5-12 keV flux; erg/s/cm^2^mW.m**-2phot.flux;em.X-ray.mediumdoublenullablee_F5-4XMMs[4.7e-16/6.9e-13]? The 1{sigma} uncertainty in F5-4XMMsmW.m**-2stat.error;phot.flux;em.X-ray.mediumdoublenullableF8-4XMMs[2.1e-16/2.2e-11]? 4XMMs 0.2-12 keV flux; erg/s/cm^2^mW.m**-2phot.flux;em.X-raydoublenullablee_F8-4XMMs[5.8e-16/6.9e-13]? The 1{sigma} uncertainty in F8-4XMMsmW.m**-2stat.error;phot.flux;em.X-raydoublenullableCTS8-4XMMs[6.3/884653]? 4XMMs 0.2-12 keV countsctphot.count;em.X-raydoublenullablee_CTS8-4XMMs[1.8/38963]? The 1{sigma} uncertainty in CTS8-4XMMsctstat.error;phot.count;em.X-raydoublenullableRATE8-4XMMs[0.00015/15.5]? 4XMMs 0.2-12 keV count ratect/sarith.rate;phot.count;em.X-raynullablee_RATE8-4XMMs[7e-05/1.7]? The 1{sigma} uncertainty in RATE8-4XMMsct/sstat.error;phot.count;em.X-raydoublenullableRATE512-4XMMs[8.8e-06/9.7]? 4XMMs 0.5-12 keV count ratect/sarith.rate;phot.count;em.X-raynullablee_RATE512-4XMMs[4e-05/1.7]? The 1{sigma} uncertainty in RATE512-4XMMsct/sstat.error;phot.count;em.X-raydoublenullableRATE52-4XMMs[1e-06/9]? 4XMMs 0.5-2 keV count ratect/sarith.rate;phot.count;em.X-ray.softnullablee_RATE52-4XMMs[2.5e-05/1.7]? The 1{sigma} uncertainty in RATE52-4XMMsct/sstat.error;phot.count;em.X-ray.softdoublenullableRATE212-4XMMs[1.3e-06/1.7]? 4XMMs 2-12 keV count ratect/sarith.rate;phot.count;em.X-ray.mediumnullablee_RATE212-4XMMs[3e-05/1.6]? The 1{sigma} uncertainty in RATE212-4XMMsct/sstat.error;phot.count;em.X-ray.mediumdoublenullableHR-4XMMs[-1/1]? 4XMMs hardness ratio using 0.5-2 and 2-12 keVphot.flux;arith.ratio;em.X-rayfloatnullableb_HR-4XMMs[-1/0.99]? Lower 1{sigma} value in HR-4XMMsstat.error;stat.min;arith.ratiofloatnullableB_HR-4XMMs[-1/1]? Upper 1{sigma} value in HR-4XMMsstat.error;stat.max;arith.ratiofloatnullable2CXOCSC 2.1 catalog identifier (JHHMMSS.s+DDMMSSX)meta.id.crosscharRACS2deg? CSC 2.1 Right Acension (J2000)degpos.eq.ranullableDECS2deg? CSC 2.1 Declination (J2000)degpos.eq.decnullableFb-CSC2p1[6e-17/3.9e-11]? CSC 2.1 average 0.5-7 keV ACIS aperture flux; erg/s/cm^2^mW.m**-2phot.flux;em.X-raydoublenullableb_Fb-CSC2p1[7.8e-18/3.3e-11]? Lower 1{sigma} value in Fb-CSC2p1mW.m**-2stat.error;stat.min;phot.fluxdoublenullableB_Fb-CSC2p1[3.8e-17/4.5e-11]? Upper 1{sigma} value in Fb-CSC2p1mW.m**-2stat.error;stat.max;phot.fluxdoublenullableFh-CSC2p1[1.5e-17/4.5e-12]? CSC 2.1 average 2-7 keV ACIS aperture flux; erg/s/cm^2^mW.m**-2phot.flux;em.X-ray.mediumdoublenullableb_Fh-CSC2p1[6e-18/4.2e-12]? Lower 1{sigma} value in Fh-CSC2p1mW.m**-2stat.error;stat.min;phot.fluxdoublenullableB_Fh-CSC2p1[1e-17/4.7e-12]? Upper 1{sigma} value in Fh-CSC2p1mW.m**-2stat.error;stat.max;phot.fluxdoublenullableFm-CSC2p1[5.9e-18/1.8e-12]? CSC 2.1 average 1-2 keV ACIS aperture flux; erg/s/cm^2^mW.m**-2phot.flux;em.X-ray.softdoublenullableb_Fm-CSC2p1[2e-18/1.8e-12]? Lower 1{sigma} value in Fm-CSC2p1mW.m**-2stat.error;stat.min;phot.fluxdoublenullableB_Fm-CSC2p1[2.6e-17/1.9e-12]? Upper 1{sigma} value in Fm-CSC2p1mW.m**-2stat.error;stat.max;phot.fluxdoublenullableFs-CSC2p1[3.8e-18/4.1e-11]? CSC 2.1 average 0.5-1 keV ACIS aperture flux; erg/s/cm^2^mW.m**-2phot.flux;em.X-ray.softdoublenullableb_Fs-CSC2p1[2.3e-18/2.6e-11]? Lower 1{sigma} value in Fs-CSC2p1mW.m**-2stat.error;stat.min;phot.fluxdoublenullableB_Fs-CSC2p1[2e-17/5.7e-11]? Upper 1{sigma} value in Fs-CSC2p1mW.m**-2stat.error;stat.max;phot.fluxdoublenullableFu-CSC2p1[9.3e-18/7e-05]? CSC 2.1 average 0.2-0.5 keV ACIS aperture flux; erg/s/cm^2^mW.m**-2phot.flux;em.X-ray.softdoublenullableb_Fu-CSC2p1[2e-18/2.4e-05]? Lower 1{sigma} value in Fu-CSC2p1mW.m**-2stat.error;stat.min;phot.fluxdoublenullableB_Fu-CSC2p1[2.2e-17/0.0002]? Upper 1{sigma} value in Fu-CSC2p1mW.m**-2stat.error;stat.max;phot.fluxdoublenullableFw-CSC2p1[5.2e-16/4e-13]? CSC 2.1 average 0.1-10 keV HRC aperture flux; erg/s/cm^2^mW.m**-2phot.flux;em.X-raydoublenullableb_Fw-CSC2p1[5.3e-16/3.8e-13]? Lower 1{sigma} value in Fw-CSC2p1mW.m**-2stat.error;stat.min;phot.fluxdoublenullableB_Fw-CSC2p1[3.7e-16/4.1e-13]? Upper 1{sigma} value in Fw-CSC2p1mW.m**-2stat.error;stat.max;phot.fluxdoublenullablee_CTb-CSC2p1[1.27/111]? The 1{sigma} uncertainty in CTb-CSC2p1ctstat.error;phot.count;em.X-rayfloatnullableRATEb-CSC2p1[2.6e-05/1.1]? ACIS count rate in 0.5-7 keVct/sarith.rate;phot.count;em.X-raynullablee_RATEb-CSC2p1[6.5e-06/1.1]? Lower 1{sigma} uncertainty in RATEb-CSC2p1ct/sstat.error;stat.min;phot.countdoublenullableE_RATEb-CSC2p1[8.6e-06/0.9]? Upper 1{sigma} uncertainty in RATEb-CSC2p1ct/sstat.error;stat.max;phot.countdoublenullableRATEh-CSC2p1[6.9e-06/0.2]? ACSI count rate in 2-7keVct/sarith.rate;phot.count;em.X-ray.mediumnullablee_RATEh-CSC2p1[2.9e-07/0.2]? Lower 1{sigma} uncertainty in RATEh-CSC2p1ct/sstat.error;stat.min;phot.countdoublenullableE_RATEh-CSC2p1[6.2e-06/0.21]? Upper 1{sigma} uncertainty in RATEh-CSC2p1ct/sstat.error;stat.max;phot.countdoublenullableRATEsm-CSC2p1[6.7e-06/1]? ACSI count rate in 0.5-2keVct/sarith.rate;phot.count;em.X-ray.softnullablee_RATEsm-CSC2p1[5.6e-07/1]? Lower 1{sigma} uncertainty in RATEsm-CSC2p1ct/sstat.error;stat.min;phot.countdoublenullableE_RATEsm-CSC2p1[4.9e-06/1.4]? Upper 1{sigma} uncertainty in RATEsm-CSC2p1ct/sstat.error;stat.max;phot.countdoublenullableHR-CSC2p1[-1/1]? Hardness ratio from CSC2.1 using 0.5-2 and 2-7 keVphot.flux;arith.ratio;em.X-rayfloatnullableb_HR-CSC2p1[-1/0.95]? Lower 1{sigma} value in HR-CSC2p1stat.error;stat.min;arith.ratiofloatnullableB_HR-CSC2p1[-1/1]? Upper 1{sigma} value in HR-CSC2p1stat.error;stat.max;arith.ratiofloatnullableXMM-CSC[0.01/15]? Cross-match radius between XMM and Chandra sourcesarcsecpos.angDistancefloatnullableS82X[1/196076]? Cross-match identifier withStrip 82X surveymeta.id.crossintnullableFFull[7.2e-17/4.7e-11]? The 0.5-10 keV flux; erg/s/cm^2^ (2)mW.m**-2phot.flux;em.X-raydoublenullablee_FFull[7.4e-17/7.3e-12]? The 1{sigma} uncertainty in FFullmW.m**-2stat.error;phot.flux;em.X-raydoublenullableFSoft[4.2e-19/4.1e-11]? The 0.5-2 keV flux; erg/s/cm^2^ (2)mW.m**-2phot.flux;em.X-ray.softdoublenullablee_FSoft[2.2e-17/1.6e-11]? The 1{sigma} uncertainty in FSoftmW.m**-2stat.error;phot.flux;em.X-ray.softdoublenullableFHard[1.9e-18/2.5e-11]? The 2-10 keV flux; erg/s/cm^2^ (2)mW.m**-2phot.flux;em.X-ray.mediumdoublenullablee_FHard[1.4e-16/2.5e-12]? The 1{sigma} uncertainty in FHardmW.m**-2stat.error;phot.flux;em.X-ray.mediumdoublenullableLFull[3.6e+37/7.4e+45]? Derived 0.5-10keV rest-frame luminosity; erg/s (3)1e-07Wphys.luminosity;em.X-raydoublenullablee_LFull[3.3e+37/9.8e+45]? The 1{sigma} uncertainty in LFull1e-07Wstat.error;phys.luminosity;em.X-raydoublenullableLSoft[1e+38/5e+45]? Derived 0.5-2 keV rest-frame luminosity; erg/s (3)1e-07Wphys.luminosity;em.X-ray.softdoublenullablee_LSoft[2.5e+37/1.2e+46]? The 1{sigma} uncertainty in LSoft1e-07Wstat.error;phys.luminosity;em.X-ray.softdoublenullableLHard[1.2e+38/1.7e+47]? Derived 2-10 keV rest-frame luminosity; erg/s (3)1e-07Wphys.luminosity;em.X-ray.mediumdoublenullablezSpec[-0.002/6]? SDSS DR17 or S82X spectroscopic redshiftsrc.redshiftfloatnullableClassSDSS DR17 or S82X spectral classification (4)meta.code.classcharr_zSpecOrigin for zSpec (5)meta.ref;src.redshiftcharNH[20/25]? Log H column density derived using hardness ratioslog(cm**-2)phys.columnDensityfloatnullableb_NH[20/24]? Lower 1{sigma} value in NHlog(cm**-2)stat.error;stat.min;phys.columnDensityfloatnullableB_NH[20/25]? Upper 1{sigma} value in NHlog(cm**-2)stat.error;stat.max;phys.columnDensityfloatnullableSloanDisplay the online SDSS-DR17 data for the nearest object if zSpec is filledmeta.ref.urlcharOBS-CSC2p1Chandra observation identifier in CSC catalogmeta.id;obschar