J/A+A/477/147ivo://CDS.VizieR/J/A+A/477/147doi:10.26093/cds/vizier.34770147CDSClark J.S.Muno M.P.Negueruela I.Dougherty S.M.Crowther P.A.,Goodwin S.P.De Grijs R.2017-10-12T13:00:04Z2008-04-19T09:08:10ZCDS support team

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

cds-question@unistra.fropen-star-clustersx-ray-sourcesphotometryWe investigate the nature of the X-ray point source population within the Young Massive Cluster Westerlund 1. Chandra observations of 18 ks and 42 ks were used to determine the X-ray properties of emitters within Wd 1, while a comprehensive multiwavelength dataset was employed to constrain their nature. We find X-ray emission from a multitude of different stellar sources within Wd 1, including both evolved high mass and low mass pre-MS stars.2008A&A...477..147Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/477/147CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)I/284 : The USNO-B1.0 Catalog (Monet+ 2003)J/A+AS/127/423 : VI photometry of Westerlund 1 and 2 (Piatti+ 1998)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/477/147https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/477/147http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/477/147https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/477/147https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/477/147http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/477/147GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/477/147/table1 (Catalogue of the properties of the 241 X-ray point sources detected in the 2 epochs of observations)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/477/147/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/477/147/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/477/147/table1?GETtext/xml+votable180.050000true251.7655-45.849560.0055555555555555566/42206-42207 42228-42229https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/477/147?format=asciiX-rayOpticaldefaultJ/A+A/477/147/table1Catalogue of the properties of the 241 X-ray point sources detected in the 2 epochs of observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[CMN2008]X-ray Identifier (HHMMSS.s+DDMMSS)meta.id;meta.maincharprimaryRAJ2000Right ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainOffsetAngular offset from the aim point of the observationarcminpos.angDistance;arith.difffloate_PosPositional uncertaintyarcsecstat.errorfloatLiveTimeDetector live timekstime.duration;instr.detfloatCountsNet counts in the 0.5-8.0keV bandctphot.count;em.X-rayfloatE_CountsError on net counts (upper limit)ctstat.error;stat.maxfloate_CountsError on net counts (lower limit)ctstat.error;phot.countfloatHRHardness ratio (G1)phot.flux;arith.ratiofloatE_HR? Error on hardness ratio (upper limit)stat.error;stat.maxfloatnullablee_HR? Error on hardness ratio (lower limit)stat.errorfloatnullableFXX-ray flux in the 0.5-8.0keV band1e-07ph.cm**-2.s**-1phot.flux;em.X-rayfloatVar[sl ] Source variability on (s)hort or (l)ong timescalesmeta.code;src.varcharNCPCounterpart flag (2)meta.codecharOptSimbad column added by the CDSmeta.ref.urlcharJ/A+A/477/147/table3Summary of the X-ray and optical properties of the X-ray point sources with high mass stellar counterpartsE_CountsError on net counts (upper limit)ctstat.error;stat.maxfloatVar[AEP] Variability flag (5)meta.code;src.varcharSeq? Number of the source in the finding chart (Fig. 6) (2)meta.numberintnullableSpTypeMK spectral type (4)src.spTypecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[CMN2008]X-ray Identifier (HHMMSS.s+DDMMSS)meta.id;meta.maincharn_[CMN2008][i] Note on Name (1)meta.notecharCountsNet counts in the 0.5-8.0keV bandctphot.count;em.X-rayfloate_CountsError on net counts (lower limit)ctstat.error;phot.countfloatHRHardness ratio (G1)phot.flux;arith.ratiofloatE_HR? Error on Harness ratio (upper limit)stat.error;stat.maxfloatnullablee_HR? Error on Harness ratio (lower limit)stat.errorfloatnullableOptIDOptical designation (3)meta.id.crosscharBmag? B magnitudemagphot.mag;em.opt.BfloatnullableVmag? V magnitudemagphot.mag;em.opt.VfloatnullableRmag? R magnitudemagphot.mag;em.opt.RfloatnullableImag? I magnitudemagphot.mag;em.opt.Ifloatnullable