J/A+A/521/A45ivo://CDS.VizieR/J/A+A/521/A45doi:10.26093/cds/vizier.35210045CDSCaballero J.A.Albacete-colombo J.F.Lopez-Santiago J.2017-12-15T10:56:00Z2011-03-11T11:54:06ZCDS support team

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

cds-question@unistra.fropen-star-clustersearly-type-starsx-ray-sourcesWe investigated the X-ray emission from young stars and brown dwarfs in the {sigma} Orionis cluster ({tau}=~3Ma, d=~385pc) and its relation to mass, the presence of circumstellar discs, and separation to the cluster centre by taking advantage of the superb spatial resolution of the Chandra X-ray Observatory.2010A&A...521A..45Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/521/A45CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AN/325/705 : RIJHKs of low-mass stars in {sigma} Ori (Bejar+, 2004)J/A+A/419/249 : RJHKs photometry of {sigma} Ori low-mass stars (Scholz+, 2004)J/A+A/446/501 : XMM observations of {sigma} Ori cluster (Franciosini+, 2006)J/A+A/493/931 : MAD observations of {sigma} Ori (Bouy+, 2009)J/ApJ/688/362 : Disks around brown dwarfs in {sigma} Ori (Luhman+ 2008)J/ApJS/191/389 : Photometric monitoring in {sigma} Ori cluster (Cody+, 2010)J/MNRAS/356/89 : {sigma} Ori low-mass stars (Kenyon+, 2005)B/chandra : The Chandra Archive Log (CXC, 1999-)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/521/A45https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/521/A45http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/521/A45https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/521/A45https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/521/A45http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/521/A45GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/521/A45/tablec1 (HRC-I/Chandra X-ray detections with significance over 5.1.)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/521/A45/tablec1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/521/A45/tablec1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/521/A45/tablec1?GETtext/xml+votable180.050000true84.6865-2.60002780.005555555555555556Cone search capability for table J/A+A/521/A45/tablec3 (A reappraisal to the X-ray sources near {sigma} Ori in Wolk (1996, Ph.D. Thesis))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/521/A45/tablec3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/521/A45/tablec3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/521/A45/tablec3?GETtext/xml+votable180.050000true84.515048-2.588130.0055555555555555566/21439 22851 22854https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/521/A45?format=asciiX-raydefaultJ/A+A/521/A45/tablec1HRC-I/Chandra X-ray detections with significance over 5.1.recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/107] Sequential numbermeta.id;meta.mainintprimaryn_SeqSimbad column added by the CDSmeta.ref.urlcharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.maine_PosPosition errorarcsecstat.errorfloatSigniSignificance of detectionstat.fit.goodness;instr.saturationfloatOffaxisAngular separation to the centre of field of viewarcmininstr.offset;instr.fovfloatCRCount ratect/ksphot.count;em.X-rayfloate_CRrms uncertainty on CRct/ksstat.errorfloatFluxApparent X-ray flux (10^-14^erg/cm^2^/s)1e-17W.m**-2phot.flux;em.X-rayfloatNX?=- Source number in Franciosini et al, 2006, Cat. J/A+A/446/501, <[FPS2006] NX NNN> in Simbadmeta.idintnullablen_NX[)<] Uncertain or non-detection (1)meta.notecharCXO?=- Source number in Skinner et al. 2008ApJ...683..796S, <[SSC2008] NN> in Simbadmeta.idintnullableJ/A+A/521/A45/tablec2Optical/near-infrared counterparts of X-ray sources in Table C1ANameAlternative namemeta.idSeq[1/107] Sequential numbermeta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint2MASS2MASS name (HHMMSSss+DDMMSSs)meta.id.crosscharNameNamemeta.id.crosscharClassClassification (2)src.classcharJ/A+A/521/A45/tablec3A reappraisal to the X-ray sources near {sigma} Ori in Wolk (1996, Ph.D. Thesis)SimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSourceSource name (1)meta.id;meta.maincharRA1996Wolk 1996 Right ascension (J2000)pos.eq.ra;meta.mainDE1996Wolk 1996 Declination (J2000)pos.eq.dec;meta.mainCRCount ratect/ksphot.count;em.X-rayfloate_CRrms uncertainty on CRct/ksstat.errorfloatSpTMK spectral typesrc.spTypecharn_SpT[x] when star spectroscopically investigated by Wolk (1996 PhD thesis) but spectral type not givenmeta.notecharRA2? 2MASS Right ascension (J2000)pos.eq.ranullableDE2? 2MASS Declination (J2000)pos.eq.decnullableNX? Source number in Franciosini et al, 2006, Cat. J/A+A/446/501, <[FPS2006] NX NNN> in Simbadmeta.idintnullableNameAlternate namemeta.idchar2M2MASS data (Cutri et al. 2003, Cat. II/246)meta.ref.urlchar_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