J/ApJ/808/185ivo://CDS.VizieR/J/ApJ/808/185doi:10.26093/cds/vizier.18080185CDSCivano F.Hickox R.C.Puccetti S.Comastri A.Mullaney J.R.,Zappacosta L.Lamassa S.M.Aird J.Alexander D.M.Ballantyne D.R.,Bauer F.E.Brandt W.N.Boggs S.E.Christensen F.E.Craig W.W.,Del-Moro A.Elvis M.Forster K.Gandhi P.Grefenstette B.W.,Hailey C.J.Harrison F.A.Lansbury G.B.Luo B.Madsen K.Saez C.,Stern D.Treister E.Urry M.C.Wik D.R.Zhang W.2018-02-12T08:45:34Z2015-12-24T13:47:20ZCDS support team

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

cds-question@unistra.frx-ray-sourcesredshiftedastronomical-object-identificationsurveysTo provide the census of the sources contributing to the X-ray background peak above 10keV, Nuclear Spectroscopic Telescope Array (NuSTAR) is performing extragalactic surveys using a three-tier "wedding cake" approach. We present the NuSTAR survey of the COSMOS field, the medium sensitivity, and medium area tier, covering 1.7deg^2^ and overlapping with both Chandra and XMM-Newton data. This survey consists of 121 observations for a total exposure of ~3Ms. To fully exploit these data, we developed a new detection strategy, carefully tested through extensive simulations. The survey sensitivity at 20% completeness is 5.9, 2.9, and 6.4x10^-14^erg/cm^2^/s in the 3-24, 3-8, and 8-24keV bands, respectively. By combining detections in 3 bands, we have a sample of 91 NuSTAR sources with 10^42^-10^45.5^erg/cm^2^/s luminosities and redshift z=0.04-2.5. Thirty-two sources are detected in the 8-24keV band with fluxes ~100 times fainter than sources detected by Swift-BAT. Of the 91 detections, all but 4 are associated with a Chandra and/or XMM-Newton point-like counterpart. One source is associated with an extended lower energy X-ray source. We present the X-ray (hardness ratio and luminosity) and optical-to-X-ray properties. The observed fraction of candidate Compton-thick active galactic nuclei measured from the hardness ratio is between 13%-20%. We discuss the spectral properties of NuSTAR J100259+0220.6 (ID 330) at z=0.044, with the highest hardness ratio in the entire sample. The measured column density exceeds 10^24^/cm2, implying the source is Compton-thick. This source was not previously recognized as such without the >10keV data.2015ApJ...808..185Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/808/185CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/chandra : The Chandra Archive Log (CXC, 1999-2014)VIII/76 : Leiden/Argentine/Bonn (LAB) Survey of Galactic HI (Kalberla+ 2005)IX/15 : Einstein EMSS Survey (Gioia+ 1990, Stocke+ 1991)J/ApJ/808/184 : NuSTAR surveys: ECDF-S catalog (Mullaney+, 2015)J/MNRAS/436/3581 : X-ray observations of Stripe 82 (LaMassa+, 2013)J/ApJS/207/19 : Swift-BAT 2004-2010 hard X-ray survey (Baumgartner+, 2013)J/ApJ/763/111 : X-ray spectral analysis of Swift/BAT AGNs (Vasudevan+, 2013)J/ApJS/202/6 : XDEEP2 survey catalog (Goulding+, 2012)J/ApJS/201/30 : The Chandra COSMOS survey. III. (Civano+, 2012)J/ApJ/749/21 : AGNs detected by 60 month Swift/BAT survey (Ajello+, 2012)J/ApJ/742/61 : AGN photometric redshifts from XMM- & C-COSMOS (Salvato+ 2011)J/ApJS/195/10 : The CDF-S survey: 4Ms source catalogs (Xue+, 2011)J/MNRAS/413/1206 : XMM survey of 12um selected galaxies (Brightman+, 2011)J/ApJ/728/58 : Swift-BAT survey of AGNs (Burlon+, 2011)J/A+A/523/A61 : Hard X-ray sources INTEGRAL all-sky survey (Krivonos+, 2010)J/A+A/512/A34 : XMM-COSMOS Type 1 AGNs (Lusso+, 2010)J/ApJ/716/348 : The XMM-Newton survey of the COSMOS field (Brusa+, 2010)J/AJ/139/2525 : UNAM-KIAS cat. of isolated galaxies (Hernandez-Toledo+, 2010)J/ApJS/184/158 : Chandra COSMOS survey I. (Elvis+, 2009)J/A+A/497/635 : XMM-Newton wide-field survey in COSMOS (Cappelluti+, 2009)J/ApJ/696/1195 : COSMOS AGN spectroscopic survey. I. (Trump+, 2009)J/ApJ/693/8 : High-redshift QSOs in the COSMOS survey (Brusa+, 2009)J/ApJS/180/102 : AEGIS-X: Chandra deep survey (Laird+, 2009)J/ApJ/681/113 : Swift BAT survey of AGNs (Tueller+, 2008)J/A+A/475/775 : Hard X-ray sources INTEGRAL all-sky survey (Krivonos+, 2007)J/ApJS/172/368 : XMM-Newton survey in COSMOS field. IV. (Mainieri+, 2007)J/ApJS/172/182 : XMM Clusters of galaxies in COSMOS field (Finoguenov+ 2007)J/ApJS/172/29 : XMM-Newton survey in COSMOS field. I. (Hasinger+, 2007)J/A+A/466/31 : The HELLAS2XMM survey. VIII (Cocchia+, 2007)J/ApJS/165/19 : SEXSI catalog. III (Eckart+, 2006)J/A+A/423/469 : AGNs from RXTE 3-20keV All-Sky Survey (Sazonov+, 2004)J/A+A/409/79 : HELLAS2XMM survey. IV. (Fiore+, 2003)J/ApJ/554/742 : Chandra Deep Survey of the HDF-N (Hornschemeier+, 2001)J/A+A/371/833 : ROSAT Ultra Deep Survey (Lehmann+, 2001)J/PASP/111/438 : Updated Zwicky catalog (UZC) (Falco+, 1999)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/808/185https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/808/185http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/808/185https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/808/185https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/808/185http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/808/185GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/808/185/table5 (COSMOS NuSTAR catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/808/185/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/808/185/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/808/185/table5?GETtext/xml+votable180.050000true149.817176941.838771110.0055555555555555565/6814 6/27247https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/808/185?format=asciiX-rayOpticaldefaultJ/ApJ/808/185/table5COSMOS NuSTAR catalogSeq[20/557] Source number (2)meta.idintChandra[42/103635]? C-COSMOS identification number; see Elvis et al. 2009, J/ApJS/184/158meta.id.crossintnullableXMMC[1/70136]? XMM-COSMOS identification number; Brusa et al. 2010, J/ApJ/716/348meta.id.crossintnullableCXOCSources within 26" from the C-COSMOS catalog (Elvis+, 2009, J/ApJS/184/158)meta.ref.urlintnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNuSTARNuStar source name (JHHMMSS+DDMM.m) (1)meta.id;meta.maincharRAJ2000[149.5/151] Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[1.5/3] Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainD3-24[8/417]? The 3-24keV band deblended DET_MLstat.likelihood;obsfloatnullableExp3-24The 3-24 keV band exposure timestime.duration;obs.exposure;em.X-ray.harddoubleT3-24[75/547]? Total 3-24 keV band counts (3)ctphot.count;em.X-rayfloatnullableT3-24db? Deblended background 3-24keV band counts (3)ctphot.count;em.X-rayfloatnullableT3-24ndb[37/160] Not deblended background 3-24keV band counts (3)ctphot.count;em.X-rayfloatN3-24[37/430] Net 3-24 keV band counts (3)(4)ctphot.count;em.X-rayfloate_N3-24[11/27] Error in N3-24 computed using Gehrels statisticctstat.errorfloatCR3-24[-0.002/0.004] The 3-24keV band count rate (3)(5)ct/sphot.count;em.X-raydoubleF3-24Aperture corrected 3-24 keV band flux; erg/s/cm^2^ (5)mW.m**-2phot.flux;em.X-raydoublee_F3-24? Error in F3-24 (6)mW.m**-2stat.errordoublenullableD3-8[7/327]? The 3-8 keV band deblended DET_MLstat.likelihood;obsfloatnullableExp3-8The 3-8 keV band exposure timestime.duration;obs.exposure;em.X-ray.mediumdoubleT3-8[38/331]? Total 3-8 keV band counts (3)ctphot.count;em.X-rayfloatnullableT3-8db? Deblended background 3-8keV band counts (3)ctphot.count;em.X-rayfloatnullableT3-8ndb[16/75] Not deblended background 3-8keV band counts (3)ctphot.count;em.X-rayfloatN3-8[26/277] Net 3-8 keV band counts (3)(4)ctphot.count;em.X-rayfloate_N3-8[8/21] Error in N3-8 computed using Gehrels statisticctstat.errorfloatCR3-8[-0.0009/0.003] The 3-8keV band count rate (3)(5)ct/sphot.count;em.X-raydoubleF3-8Aperture corrected 3-8 keV band flux; erg/s/cm^2^ (5)mW.m**-2phot.flux;em.X-raydoublee_F3-8? Error in F3-2 (6)mW.m**-2stat.errordoublenullableD8-24[4/145]? The 8-24 keV band deblended DET_MLstat.likelihood;obsfloatnullableExp8-24The 8-24 keV band exposure timestime.duration;obs.exposure;em.X-ray.harddoubleT8-24[40/247]? Total 8-24 keV band counts (3)ctphot.count;em.X-rayfloatnullableT8-24db[22/84]? Deblended background 8-24keV band counts (3)ctphot.count;em.X-rayfloatnullableT8-24ndb[20/84] Not deblended background 8-24keV band counts (3)ctphot.count;em.X-rayfloatN8-24[26/180] Net 8-24 keV band counts (3)(4)ctphot.count;em.X-rayfloate_N8-24[8/19] Error in N8-24 computed using Gehrels statisticctstat.errorfloatCR8-24[-0.002/0.002] The 8-24keV band count rate (3)(5)ct/sphot.count;em.X-raydoubleF8-24Aperture corrected 8-24 keV band flux; erg/s/cm^2^ (5)mW.m**-2phot.flux;em.X-raydoublee_F8-24? Error in F8-24 (6)mW.m**-2stat.errordoublenullableHRHardness ratio (7)(8)phot.flux;arith.ratiofloatb_HRLower bound on HRmeta.notefloatB_HRUpper bound on HRmeta.notefloatBR[0/7] Band ratio (7)phot.flux;arith.ratiofloatb_BRLower bound on BRmeta.notefloatB_BRUpper bound on BRmeta.notefloatRAXdeg? X-ray Right Ascension in decimal degrees (J2000) (9)degpos.eq.ranullableDEXdeg? X-ray Declination in decimal degrees (J2000) (9)degpos.eq.decnullableF0.5-2? Aperture corrected 0.5-2 keV band flux; erg/s/cm^2^ (10)mW.m**-2phot.flux;em.X-raydoublenullableF2-10? The 2-10 keV band flux (10)mW.m**-2phot.flux;em.X-ray.mediumdoublenullablezsp[0.04/2.5]? Spectroscopic redshift (11)src.redshiftfloatnullablen_zsp? Classification type for zsp (12)meta.noteintnullablezph[0.05/2.5]? Photometric redshift (11)src.redshiftfloatnullablen_zph? Classification type for zph (13)meta.noteintnullableXSep[1/26]? NuSTAR position separation (6)(11)arcminpos.angDistancefloatnullableDzsp? Luminosity distance using zspMpcpos.distance;pos.heliocentricdoublenullableDzph? Luminosity distance using zphMpcpos.distance;pos.heliocentricdoublenullablelogL3-24? Log 3-24 keV band luminosity; erg/slog(1e-07W)phys.luminosity;em.X-rayfloatnullablelogL3-8? Log 3-8 keV band luminosity; erg/slog(1e-07W)phys.luminosity;em.X-rayfloatnullablelogL8-24? Log 8-24 keV band luminosity; erg/slog(1e-07W)phys.luminosity;em.X-rayfloatnullableFlagMultiple low energy counterpart flag (0:False; or 1:True)meta.code.errorint