J/MNRAS/355/97ivo://CDS.VizieR/J/MNRAS/355/97doi:10.26093/cds/vizier.73550097CDSManners J.C.Serjeant S.Bottinelli S.Vaccari M.Franceschini A.,Perez-Fournon I.Gonzalez-Solares E.Willott C.J.Johnson O.,Almaini O.Rowan-Robinson M.Oliver S.2024-06-30T20:16:55Z2006-02-09T17:05:20ZCDS support team

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

cds-question@unistra.frx-ray-sourcesinfrared-sourcesastronomical-object-identificationWe present a cross-correlation of the European Large Area Infrared Space Observatory (ISO) survey (ELAIS) with the ELAIS Deep X-ray Survey of the N1 and N2 fields. There are seven Chandra point sources with matches in the ELAIS Final Analysis 15{mu}m catalogue, out of a total of 28 extragalactic ISO sources present in the Chandra fields. Five of these are consistent with active galactic nuclei (AGN) giving an AGN fraction of ~19 per cent in the 15{mu}m flux range 0.8-6mJy. We have co-added the hard X-ray fluxes of the individually undetected ISO sources and find a low significance detection consistent with star formation in the remaining population. We combine our point source cross-correlation fraction with the XMM-Newton observations of the Lockman Hole and Chandra observations of the Hubble Deep Field North to constrain source count models of the mid-infrared galaxy population. The low dust-enshrouded AGN fraction in ELAIS implied by the number of cross-identifications between the ELAIS mid-infrared sample and the Chandra point sources is encouraging for the use of mid-infrared surveys to constrain the cosmic star formation history, provided there are not further large undetected populations of Compton-thick AGN.2004MNRAS.355...97Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/355/97CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/255 : SWIRE ELAIS N1 Source Catalogs (Surace+, 2004)J/AJ/127/3075 : Mid-infrared population of ELAIS-S1 sample (La Franca+ 2004)J/MNRAS/325/1173 : ISO ELAIS 15{mu}m survey (Lari+, 2001)J/MNRAS/343/293 : ELAIS deep X-ray survey. I. (Manners+, 2003)J/MNRAS/351/1290 : ELAIS: final band-merged catalogue (Rowan-Robinson+, 2004)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/355/97https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/355/97http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/355/97https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/355/97https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/355/97http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/355/97GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/355/97/table1 (Chandra sources with ISOCAM 15{mu}m counterparts in the ELAIS regions N1 & N2)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/355/97/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/355/97/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/355/97/table1?GETtext/xml+votable180.050000true242.694041754.59411110.0055555555555555566/9640 101531.6558465556080236e-21 3.953759050367298e-21https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/355/97?format=asciiX-rayInfrareddefaultJ/MNRAS/355/97/table1Chandra sources with ISOCAM 15{mu}m counterparts in the ELAIS regions N1 & N2recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[MJA2003]Source name (N1_NN or N2_NNN)charprimaryRAJ2000Chandra Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Chandra Declination (J2000.0)pos.eq.dec;meta.mainRAIISO Right ascension (J2000.0)pos.eq.raDEIISO Declination (J2000.0)pos.eq.decOffsetOffset between Chandra and 15um-ISO positionsarcsecfloatProbProbability of this cross-correlation being a random associationfloatFXChandra full band (0.5-8keV) flux (Manners et al., 2003, Cat. <J/MNRAS/343/293>)mW.m**-2doubleF15umISOCAM 15Um flux density (Rowan-Robinson et al., 2004, Cat. <J/MNRAS/351/1290>)mJyfloatz? Spectroscopic redshift (1{sigma} error ~0.1)floatnullablen_z[a] a: photometric redshiftcharClassClassification suggested by this paper (SB or AGN)charn_Class[b] b: classification previously confirmed by optical spectroscopycharCXOEELAIS designation, CXOEN1 JHHMMSS.s+DDMMSS or CXOEN2 JHHMMSS.s+DDMMSScharJ/MNRAS/355/97/table2Multiwaveband data for each cross-correlated sourceF2-8keV? Flux in the 2-8keV band1e-18W.m**-2floatnullablee_F2-8keV? rms uncertainty on F2-8keV1e-18W.m**-2floatnullablealphaIX? Mid-infrared to hard X-ray relationfloatnullablee_alphaIX? rms uncertainty on alphaIXfloatnullableHR? X-ray hardness ratio, Manners et al., 2003, Cat. <J/MNRAS/343/293>floatnullablee_HR? rms uncertainty on HRfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[MJA2003]Source name (N1_NN or N2_NNN)charS1.4GHz? Flux at 1.4GHzmJyfloatnullablee_S1.4GHz? rms uncertainty on S1.4GHzmJyfloatnullablen_S1.4GHz[cd] Note on S1.4GHz (1)charS175um? ISO flux density at 175ummJyintnullablee_S175um? rms uncertainty on S175ummJyintnullableS100um? IRAS flux density at 100ummJyintnullablee_S100um? rms uncertainty on S100ummJyintnullablen_S100um[a] Note on S100um (1)charS90um? ISO flux density at 90ummJyintnullablee_S90um? rms uncertainty on S90ummJyintnullableS60um? IRAS flux density at 60ummJyintnullablee_S60um? rms uncertainty on S60ummJyintnullablen_S60um[a] Note on S60um (1)charS15um? ISO flux density at 15ummJyfloatnullablee_S15um? rms uncertainty on S15ummJyfloatnullableS6.7um? ISO flux density at 6.7ummJyfloatnullablee_S6.7um? rms uncertainty on S6.7ummJyfloatnullableKmag? K (2.2um) magnitude, in Vega magnitudemagfloatnullablee_Kmag? rms uncertainty on Kmagmagfloatnullablen_Kmag[c] Note on Kmag (1)charHmag? H (1.65um) magnitude, in Vega magnitudemagfloatnullablee_Hmag? rms uncertainty on Hmagmagfloatnullablen_Hmag[b+] Note on Hmag (1)charJmag? J (1.25um magnitude, in Vega magnitudemagfloatnullablee_Jmag? rms uncertainty on Jmagmagfloatnullablei'mag? i' (775nm) magnitude, in Vega magnitudemagfloatnullablee_i'mag? rms uncertainty on i'magmagfloatnullablen_i'mag[b] Note on i'mag (1)charr'mag? r' (623nm) magnitude, in Vega magnitudemagfloatnullablee_r'mag? rms uncertainty on r'magmagfloatnullablen_r'mag[b] Note on r'mag (1)charg'mag? g' (486nm) magnitude, in Vega magnitudemagfloatnullablee_g'mag? rms uncertainty on g'magmagfloatnullablen_g'mag[b+] Note on g'mag (1)charUmag? U (361nm) magnitude, in Vega magnitudemagfloatnullablee_Umag? rms uncertainty on Umagmagfloatnullablen_Umag[b+] Note on Umagcharl_F0.5-2keVLimit flag on F0.5-2keVcharF0.5-2keV? Flux in the 0.5-2keV band1e-18W.m**-2floatnullablee_F0.5-2keV? rms uncertainty on F0.5-2keV1e-18W.m**-2floatnullablel_F2-8keVLimit flag on F2-8keVchar