J/ApJ/660/1462ivo://CDS.VizieR/J/ApJ/660/1462doi:10.26093/cds/vizier.16601462CDSMaggio A.Flaccomio E.Favata F.Micela G.Sciortino S.,Feigelson E.D.Getman K.V.2017-12-18T07:57:58Z2009-04-19T21:58:29ZCDS support team

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

cds-question@unistra.fropen-star-clustersx-ray-sourcespre-main-sequence-starsphotometrychemical-abundancesFollowing the Chandra Orion Ultradeep Project (COUP) observation, we have studied the chemical composition of the hot plasma in a sample of 146 X-ray-bright pre-main-sequence stars in the Orion Nebula Cluster (ONC). We report measurements of individual element abundances for a subsample of 86 slightly absorbed and bright X-ray sources, using low-resolution X-ray spectra obtained from the Chandra ACIS instrument.2007ApJ...660.1462Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/660/1462CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/160/319 : COUP: observations and source lists (Getman+, 2005)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/660/1462https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/660/1462http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/660/1462https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/660/1462https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/660/1462http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/660/1462GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/660/1462/table1 (Properties of Sample Stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/660/1462/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/660/1462/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/660/1462/table1?GETtext/xml+votable180.050000true83.6658-5.40713890.0055555555555555566/21438 21439 22804 22805https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/660/1462?format=asciiX-rayOpticaldefaultJ/ApJ/660/1462/table1Properties of Sample StarsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintS[HL] (L)ow- or (H)igh-Absorption Samplemeta.idcharn_COUPSimbad column added by the CDSmeta.ref.urlcharCOUPCOUP number (Cat. J/ApJS/160/319)meta.id;meta.mainintprimarySpTypeSpectral typesrc.spTypecharMass? Stellar MasssolMassphys.massfloatnullableAge? Stellar Age (log scale)log(yr)time.agefloatnullableAV? Absorption in V bandmagphot.mag;em.opt.VfloatnullableD(I-K)? {Delta}(I-K) near-infrared excessmagphot.color.excessfloatnullableEW? Ca II equivalent width0.1nmspect.line.eqWidthfloatnullableVmag? V magnitudemagphot.mag;em.opt.VfloatnullableImag? I magnitudemagphot.mag;em.opt.IfloatnullableJmag? J magnitudemagphot.mag;em.IR.JfloatnullableHmag? H magnitudemagphot.mag;em.IR.HfloatnullableKsmag? Ks magnitudemagphot.mag;em.IR.KfloatnullableLmag? L magnitudemagphot.mag;em.IR.3-4umfloatnullableSimbadSimbad column added by the CDSchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/ApJ/660/1462/table2Spectral Analysis ResultsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCOUPCOUP number (Cat. J/ApJS/160/319)meta.id;meta.mainintNHInterstellar absorption H column density1e+21cm**-2phys.columnDensityfloatT1? Plasma temperature of the first componentkeVphys.temperaturefloatnullableT2Plasma temperature of the second componentkeVphys.temperaturefloatT3Plasma temperature of the third componentkeVphys.temperaturefloatk1? Volume emission measure for the first component, divided by 4{pi}D^2^ (1)m**-5meta.bib.volumefloatnullablek2? Volume emission measure for the second component, divided by 4{pi}D^2^ (1)m**-5meta.bib.volumefloatnullablek3? Volume emission measure for the third component, divided by 4{pi}D^2^ (1)m**-5meta.bib.volumefloatnullableOO abundance (in solar units)Sunphys.abundfloatNeNe abundance (in solar units)Sunphys.abundfloatMgMg abundance (in solar units)Sunphys.abundfloatSiSi abundance (in solar units)Sunphys.abundfloatSS abundance (in solar units)Sunphys.abundfloatArAr abundance (in solar units)Sunphys.abundfloatCaCa abundance (in solar units)Sunphys.abundfloatFeFe abundance (in solar units)Sunphys.abundfloatNiNi abundance (in solar units)Sunphys.abundfloatRchi2Reduced {chi}^2^stat.fit.chi2floatDOFDegrees of freedomstat.fit.dofintfXAbsorbed source X-ray flux, in the 2-8keV (hard) band, in 10^-13^erg/cm^2^/s1e-16W.m**-2phot.flux;em.X-rayfloat