IX/22ivo://CDS.VizieR/IX/22CDSPrimini F.A.Murray S.S.Huchra J.Schild R.Burg R.Giacconi R.2013-03-05T06:33:15Z2001-07-02T12:51:19ZCDS support team

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

cds-question@unistra.frquasarsx-ray-sourcesThe Einstein Deep Survey program (EDS) consists of very deep X-ray exposures in selected regions of the sky at high galactic latitude. The main purposes of the survey are to investigate the nature of the extragalactic X-ray background through direct source counts at very low flux levels and to study the nature of the very faint X-ray sources which comprise a significant fraction, if not all, of the soft X-ray background. The survey includes 9 IPC observations and 34 HRI observations, which, in general, cover the central 32'x32' regions of the IPC fields. In total, 178 IPC sources and 202 HRI sources were detected above thresholds set to allow ~1 false source per observation. Data from all IPC energy bands and all HRI detect cells are included. The data are largely the result of standard Einstein Rev. 1 HRI and Rev. 1B IPC reprocessing; however, minor corrections to IPC count rates, fluxes, and flux significances have been made to account for different column densities toward various fields and small systematic errors in the IPC analysis of count rates and significances for long exposures. For further details please refer to the paper referenced above. The HRI field parameters have been determined from standard processing and from other information contained in the HRI .SDF file. For information on HRI sources, see the table "hsrc.dat"; for information on individual IPC fields, see the table "ifield.dat".1991ApJ...374..440Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/IX/22CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIX/23 : Einstein Observatory Source CatalogIX/24 : The Einstein Observatory High Resolution Imager Source ListIX/25 : Einstein Observatory Imaging Proportional Counter (IPC) ParametersIX/26 : Einstein Observatory, Revision 1B. ProcessingsIX/27 : Einstein Observatory Catalog (OCAT or Yellow Book)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=IX/22https://vizier.iucaa.in/viz-bin/VizieR-2?-source=IX/22http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=IX/22https://vizier.cds.unistra.fr/viz-bin/votable?-source=IX/22https://vizier.iucaa.in/viz-bin/votable?-source=IX/22http://vizieridia.saao.ac.za/viz-bin/votable?-source=IX/22GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table IX/22/targets (EDS Target Information)https://vizier.cds.unistra.fr/viz-bin/conesearch/IX/22/targets?https://vizier.iucaa.in/viz-bin/conesearch/IX/22/targets?http://vizieridia.saao.ac.za/viz-bin/conesearch/IX/22/targets?GETtext/xml+votable180.050000true212.6540472.765480.005555555555555556Cone search capability for table IX/22/hfield (EDS Field Parameters for HRI Observations)https://vizier.cds.unistra.fr/viz-bin/conesearch/IX/22/hfield?https://vizier.iucaa.in/viz-bin/conesearch/IX/22/hfield?http://vizieridia.saao.ac.za/viz-bin/conesearch/IX/22/hfield?GETtext/xml+votable180.050000true212.6540472.765480.005555555555555556Cone search capability for table IX/22/hsrc (EDS HRI Source Positions and Count Rates)https://vizier.cds.unistra.fr/viz-bin/conesearch/IX/22/hsrc?https://vizier.iucaa.in/viz-bin/conesearch/IX/22/hsrc?http://vizieridia.saao.ac.za/viz-bin/conesearch/IX/22/hsrc?GETtext/xml+votable180.050000true212.8284872.568990.005555555555555556Cone search capability for table IX/22/ifield (EDS IPC Field Parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/IX/22/ifield?https://vizier.iucaa.in/viz-bin/conesearch/IX/22/ifield?http://vizieridia.saao.ac.za/viz-bin/conesearch/IX/22/ifield?GETtext/xml+votable180.050000true212.6540472.765480.005555555555555556Cone search capability for table IX/22/isrc (EDS IPC Source Parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/IX/22/isrc?https://vizier.iucaa.in/viz-bin/conesearch/IX/22/isrc?http://vizieridia.saao.ac.za/viz-bin/conesearch/IX/22/isrc?GETtext/xml+votable180.050000true211.2496872.98770.005555555555555556Cone search capability for table IX/22/sample (EDS IPC, HRI + Optical Data for 4.5Sigma IPC Sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/IX/22/sample?https://vizier.iucaa.in/viz-bin/conesearch/IX/22/sample?http://vizieridia.saao.ac.za/viz-bin/conesearch/IX/22/sample?GETtext/xml+votable180.050000true212.4655872.742490.005555555555555556Cone search capability for table IX/22/ipchri (EDS Separations Between IPC and HRI Sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/IX/22/ipchri?https://vizier.iucaa.in/viz-bin/conesearch/IX/22/ipchri?http://vizieridia.saao.ac.za/viz-bin/conesearch/IX/22/ipchri?GETtext/xml+votable180.050000true211.249424372.98783590.005555555555555556Einstein5/2693 4496 6/10771 10777 10780 11719 11725 11730 11736 12074 12075 22533 22544 22545 22546 45303 45309 45474 45480https://cdsarc.cds.unistra.fr/viz-bin/moc/IX/22?format=asciiX-raydefaultIX/22/targetsEDS Target InformationrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqnoSequence number (G1)meta.idintdetectorDetector (IPC or HRI)meta.id;instrcharRAB1950Right Ascension (B1950)pos.eq.ra;meta.mainDEB1950Declination (B1950)pos.eq.dec;meta.mainexptimeExposure time (2)stime.expodouble_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexedIX/22/hfieldEDS Field Parameters for HRI ObservationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHseqnoHRI Sequence Number (G1)meta.idintprimaryontimeExposure Timestime.expodoubleglobkBackground in 12"x12" detect cell (in 9' circle)ctphot.count;em.X-rayfloatdetbkBackground in 12"x12" detect cell (in 5' circle)ctphot.count;em.X-rayfloatth12Threshold counts for source detection (12"x12" cell)ctphot.count;em.X-rayfloatth24Threshold counts in 24"x24" cellctphot.count;em.X-rayfloatth36Threshold counts in 36"x36" cellctphot.count;em.X-rayfloatth48Threshold counts in 48"x48" cellctphot.count;em.X-raydoubleth72Threshold counts in 72"x72" cellctphot.count;em.X-raydoubleth120Threshold counts in 120"x120" cellctphot.count;em.X-raydoubleRAB1950Right Ascension (B1950) (1)pos.eq.ra;meta.mainDEB1950Declination (B1950)pos.eq.dec;meta.mainnrollNominal Roll Angle (G2)deginstr.offsetdouble_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexedIX/22/hfluxesEDS Secondary HRI Source ParametersFL(H)PSCorresponding fluxmW.m**-2phot.flux;em.X-raydoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHseqnoHRI sequence number (G1)meta.idintHsrcnoHRI source number (1)meta.idintcts0to3Counts within 0-3" of source positionctphot.count;em.X-rayintcts3to9Counts within 3-9" of source positionctphot.count;em.X-rayintcts9to18Counts within 9-18" of source positionctphot.count;em.X-rayintUSProbProbability that the source is unresolvedstat.fit.goodnessfloatCR(S)PSCount rate for assumed soft thermal point source (2)ct/ksphot.count;em.X-rayfloatFL(S)PSCorresponding fluxmW.m**-2phot.flux;em.X-raydoubleCR(H)PSC-rate for assumed hard thermal pt src (3)ct/ksphot.count;em.X-raydoublextntBest estimate of source extentarcsecphys.angSizefloatCR(S)XSC-rate for soft thermal source within estimated extent (2)ct/ksphot.count;em.X-rayfloatFL(S)XSCorresponding fluxmW.m**-2phot.flux;em.X-raydoubleCR(H)XSCount rate for hard thermal source within estimated extent (3)ct/ksphot.count;em.X-raydoubleFL(H)XSCorresponding fluxmW.m**-2phot.flux;em.X-raydoubleulxtntUpper limit on source extentarcsecphys.angSizefloatCR(S)UXSCount rate for soft thermal source within upper limit extent (2)ct/ksphot.count;em.X-rayfloatFL(S)UXSCorresponding fluxmW.m**-2phot.flux;em.X-raydoubleCR(H)UXSCount rate for hard thermal source within upper limit extent (3)ct/ksphot.count;em.X-raydoubleFL(H)UXSCorresponding fluxmW.m**-2phot.flux;em.X-raydoublellxtntLower limit on source extentarcsecphys.angSizefloatCR(S)LXSCount rate for soft thermal source within lower limit extent (2)ct/ksphot.count;em.X-rayfloatFL(S)LXSCorresponding fluxmW.m**-2phot.flux;em.X-raydoubleCR(H)LXSCount rate for hard thermal source within lower limit extent (3)ct/ksphot.count;em.X-raydoubleFL(H)LXSCorresponding fluxmW.m**-2phot.flux;em.X-rayfloatIX/22/hsrcEDS HRI Source Positions and Count RatesyPosition in ypixpos.cartesian.y;instr.detdoublezPosition in zpixpos.cartesian;instr.detdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHseqnoHRI Sequence Number (G1)meta.idintHsrcnoHRI Source Number (1)meta.idintcsizeDetection cell sizearcsecinstr.fov;instr.pixelintposerrPosition errorarcsecstat.errorfloatRAB1950Right Ascension (B1950)pos.eq.ra;meta.mainDEB1950Declination (B1950)pos.eq.dec;meta.mainnetcrCorrected Count Rate per 1000 secct/ksphot.count;em.X-rayfloate_netcrError on Count Ratect/ksstat.errorfloatbpctsCounts in detect cell centered at best position (2)ctphot.count;em.X-rayfloateqctsCounts in circle of equivalent area (2)ctphot.count;em.X-rayfloatbp18ctsCounts in standard 18" circle at best position (3)ctphot.count;em.X-rayfloatbp18bgBackground in 18" circle (3)ctphot.count;em.X-rayfloatbp18scatFraction of src cnts scattered out of 18" circle (3)instr.calibfloatvcorrTelescope vignetting correction at source position (4)instr.paramfloatdtfacDead time correction factor (4)instr.paramfloatqecDetector quantum efficiency at source position (4)instr.det.qefloatexptimeExposure time at source position (5)stime.expodoublexcctsCounts in extended circle (6)ctphot.count;em.X-rayintxcbgBackground in extended circle (6)ctphot.count;em.X-rayfloatxcscatFraction of src cts scattered out of extended circle (6)ctinstr.calibdoublexcradRadius of extended circle (6)arcsecinstr.fovdoublesizcorSource xtent correction factor for cts/ks (7)instr.paramdouble_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexedIX/22/hris_sepEDS Separations Between HRI Srcs in a Single FieldrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHseqnoHRI sequence number (G1)meta.idintH1srcnoHRI source number (1)meta.idintH1cellDetection cell sizearcsecinstr.fov;instr.pixelintH1ySource y positionpixpos.cartesian.y;instr.detdoubleH1zSource z positionpixpos.cartesian;instr.detdoubleH1poserrPosition uncertaintyarcsecstat.errorfloatH2srcno# of another source in same sequence detected with different cell size (1)meta.idintH2cellDetection cell sizearcsecinstr.fov;instr.pixelintH2ySecond source y positionpixpos.cartesian.y;instr.detdoubleH2zSecond source z positionpixpos.cartesian;instr.detdoubleH2poserrSecond source position uncertaintyarcsecstat.errorfloatseparationSeparation between the two sources (2)arcsecpos.angDistancedoublensepNormalized separation (2)pos.angDistancefloatIX/22/ifieldEDS IPC Field ParametersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIseqnoIPC Sequence Number (G1)meta.idintprimaryontimeUncorrected exposure time (1)stime.expodoubleltimeCorrected livetime (2)spos.eq.ra;arith.diffdoublesfbkField average background for soft band (3)count.pixel**-2instr.backgroundfloathfbkField average background for hard band (3)count.pixel**-2instr.backgroundfloatbfbkField average background for broad band (3)count.pixel**-2instr.backgroundfloatRAB1950Right Ascension (B1950)pos.eq.ra;meta.mainDEB1950Declination (B1950)pos.eq.dec;meta.mainnrollNominal Roll Angle (G2)deginstr.offsetfloatnHNeutral Hydrogen Column Density (4)cm**-2phys.columnDensitydoublesr2fFlux conversion factor for soft band (5)mJ.m**-2.count**-1arith.factordoublehr2fFlux conversion factor for hard band (5)mJ.m**-2.count**-1arith.factordoublebr2fFlux conversion factor for broad band (5)mJ.m**-2.count**-1arith.factordoublealphaBackgrnd map normaliz. factor for DSMAP (6)stat.fit.paramfloatsbetaBG map normaliz. factor for soft band BEMAP (6)instr.paramdoublehbetaBG map normaliz. factor for hard band BEMAP (6)instr.paramdoublebbetaBG map norm. factor for broad band BEMAP (6)instr.paramdoublebalTime-averaged BAL for the sequence (7)instr.paramfloat_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexedIX/22/isrcEDS IPC Source ParametersrecoRib and Edge Code (2)meta.code.qualintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIseqnoIPC sequence number (G1)meta.idcharIsrcnoIPC source number in sequence (1)meta.idintpcodDetection method and band (3)instr.bandpasscharposcodePosition code (1 = within central 32'x32') (4)meta.codeintposerrPosition uncertaintyarcsecstat.errorintRAB1950Right Ascension (B1950)pos.eq.ra;meta.mainDEB1950Declination (B1950)pos.eq.dec;meta.mainthetaOff-axis angle (5)arcmininstr.offsetfloatvcorrRev. 1B vignetting correction (6)instr.paramfloatScellSoft counts in detect cell at source posn (7)ctphot.count;em.X-rayinte_ScellError in detect cell counts in soft band (7)ctstat.errorfloatHcellHard counts in detect cell at source posn (7)ctphot.count;em.X-rayinte_HcellError in detect cell counts in hard band (7)ctstat.errorfloatBcellBroad counts in detect cell at source posn (7)ctphot.count;em.X-rayinte_BcellError in detect cell counts in broad band (7)ctstat.errorfloatScellbkBackground in detect cell in soft band (8)ctinstr.backgroundfloate_ScellbkError in detect cell bg in soft band (8)ctstat.errorintHcellbkBackground in detect cell in hard band (8)ctinstr.backgroundfloate_HcellbkError in detect cell bg in hard band (8)ctstat.errorfloatBcellbkBackground in detect cell in broad band (8)ctinstr.backgroundfloate_BcellbkError in detect cell bg in broad band (8)ctstat.errorintSccrSoft band corrected count rate (9)ct/sphot.count;em.X-raydoublee_SccrError in soft band corrected count rate (9)ct/sstat.errordoubleHccrHard band corrected count rate (9)ct/sphot.count;em.X-raydoublee_HccrError in hard band corrected count rate (9)ct/sstat.errordoubleBccrBroad band corrected count rate (9)ct/sphot.count;em.X-raydoublee_BccrError in broad band corrected count rate (9)ct/sstat.errordoubleSfluxSoft band flux (10)mW.m**-2phot.flux;em.X-raydoublee_SfluxError in soft band flux (10)mW.m**-2stat.errordoubleHfluxHard band flux (10)mW.m**-2phot.flux;em.X-raydoublee_HfluxError in hard band flux (10)mW.m**-2stat.errordoubleBfluxBroad band flux (10)mW.m**-2phot.flux;em.X-raydoublee_BfluxError in broad band flux (10)mW.m**-2stat.errordoubleScorrsnrSoft band signal-to-noise ratiostat.snrfloatHcorrsnrHard band signal-to-noise ratiostat.snrfloatBcorrsnrBroad band signal-to-noise ratiostat.snrfloatfDeep survey count rate correction (11)instr.backgroundfloat_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexedIX/22/ispecEDS Spectral Parameters for IPC SourceshrHardness ratio (3)phot.flux;arith.ratiodoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIseqnoIPC sequence number (G1)meta.idcharIsrcnoIPC source no. within sequence (1)meta.idintBareapixels Area of background region (2)pixel**2phys.area;instrfloatSareapixels Area of source region (2)pixel**2phys.area;instrfloatE_hrPositive hardness ratio error (3)stat.error;stat.maxdoublee_hrNegative hardness ratio error (real) (3)stat.errordoubleIX/22/icompEDS IPC Source Component ParametersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIseqnoIPC sequence number (G1)meta.idintIsrcnoIPC source number in sequence (1)meta.idintcomp[LMBHS] Detection method and band (2)meta.codecharypixSource y positionpixpos.cartesian.y;instr.detfloate_ypixError in y positionpixstat.error;pos.cartesian.yfloatzpixSource z positionpixpos.cartesian;instr.detfloate_zpixError in z positionpixstat.errorfloatcellctsCounts in detect cell centered at y,z (3)ctphot.count;em.X-rayinte_cellctsError in detect cell counts (3)ctstat.errorfloatcellbkBackground in detect cell (3)ctinstr.backgroundfloate_cellbkError in background (3)ctstat.errorfloatnetcctsNet source counts in detect cellctphot.count;em.X-raydoublee_netcctsError in net countsctstat.errorfloatthrThreshold counts in detect cell for source detection.ctphot.count;em.X-rayfloatsnrCount rate signal-to-noise ratiostat.snrfloatIX/22/ihsampleEDS Cross-Reference of HRI and IPC SourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIseqnoIPC sequence number (1)meta.idintIsrcnoIPC source number (1)meta.idintHseqno? HRI sequence number (2)meta.idintnullableHsrcno? HRI source number of matching HRI source (2)meta.idintnullableIX/22/sampleEDS IPC, HRI + Optical Data for 4.5Sigma IPC SamplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIseqnoIPC sequence number (G1)meta.idintIsrcnoIPC source number (1)meta.idintRA1950Right Ascension (1950)pos.eq.ra;meta.mainDE1950Declination (1950)pos.eq.dec;meta.mainIposerrIPC position uncertaintyarcsecstat.errorintIfluxIPC source flux (*1.0E14) (2)1e-17W.m**-2phot.flux;em.X-rayfloate_IfluxIPC flux error (*1.0E14)1e-17W.m**-2stat.errorfloatIsnrIPC count rate signal-to-noise ratiostat.snrfloatHseqno? HRI sequence number (3)meta.idintnullableHsrcno? HRI src # of HRI src (if any) that matches IPC src (3)meta.idintnullableHcellHRI detection cell sizearcsecinstr.fov;instr.pixelintHposHRI B1950 source position (sexag.)meta.idchare_HposHRI position uncertaintyarcsecstat.errorfloatHrateHRI source count rate per 1000 s (4)ct/ksphot.count;em.X-rayfloate_HrateHRI rate errorct/ksstat.error;phot.count;em.IR.Hfloatl_Vmag[> ] uncertainty in Vmagmeta.code.errorcharVmag? Optical visual magnitudemagphot.mag;em.opt.Vfloatnullablel_fxfv[> ] uncertainty in fxfvmeta.code.errorcharfxfv? Log of ratio of broad x-ray flux/optical flux (5)phot.flux;arith.ratiofloatnullablez? OPT redshiftsrc.redshift;pos.heliocentricfloatnullableIDIdentification (6)meta.idchar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexedIX/22/optinfoEDS Optical Data for Srcs in the 4.5 Sigma SamplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIseqnoIPC sequence number (G1)meta.idintIsrcnoIPC source number (1)meta.idintl_Vmag[> ] limit to the visual magnitudemeta.code.errorcharVmag? Visual magnitudemagphot.mag;em.opt.Vfloatnullablel_fxfv[> ] '>' when fxfv is a lower limitmeta.code.errorcharfxfv? Log of ratio of broad x-ray flux/optical flux (2)phot.flux;arith.ratiofloatnullablez? Redshiftsrc.redshift;pos.heliocentricfloatnullableIDGalaxy Identification (3)meta.idcharIX/22/ipchriEDS Separations Between IPC and HRI SourcesHsrcno? HRI source numbermeta.idintnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIseqnoIPC sequence number (G1)meta.idcharIsrcnoIPC source number (1)meta.idintRAB1950Right Ascension (B1950)pos.eq.ra;meta.mainDEB1950Declination (B1950)pos.eq.dec;meta.mainipcperrIPC source position uncertainty (2)arcsecstat.errorintipchsnrIPC Hard band signal-to-noise ratiostat.snrfloatHseqno? HRI sequence number (G1)meta.idintnullableRA(HRI)HRI Right Ascension (B1950)pos.eq.raDE(HRI)HRI Declination (B1950)pos.eq.dechriperrHRI source position uncertainty (3)arcsecstat.errorfloatthetaSeparation between IPC and HRI sources (4)arcsecpos.angDistancefloatnsepNormalized separation (4)pos.angDistancefloat_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexed