J/A+A/536/A31ivo://CDS.VizieR/J/A+A/536/A31doi:10.26093/cds/vizier.35360031CDSRauw G.2018-01-04T08:23:13Z2011-12-05T12:49:57ZCDS support team

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

cds-question@unistra.fropen-star-clustersearly-type-starsx-ray-sourcesultraviolet-astronomyCyg OB2 is one of the most massive associations of O-type stars in our Galaxy. Despite the large interstellar reddening towards Cyg OB2, many studies, spanning a wide range of wavelengths, have been conducted to more clearly understand this association. X-ray observations provide a powerful tool to overcome the effect of interstellar absorption and study the most energetic processes associated with the stars in Cyg OB2. We analyse XMM-Newton data to investigate the X-ray and UV properties of massive O-type stars as well as low-mass pre-main sequence stars in Cyg OB2.2011A&A...536A..31Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/536/A31CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/101/1408 : Massive stars in Cyg OB2 (Massey+ 1991)J/A+A/464/211 : Chandra and near-IR obs. of Cyg OB2 (Albacete Colombo+, 2007)J/A+A/486/453 : NIR photometry of early-type stars in Cyg OB2 (Comeron+, 2008)J/ApJ/664/1102 : Radial velocity survey of Cyg OB2 association (Kiminki+, 2007)J/ApJS/184/84 : X-ray sources in Cyg OB2 region (Wright+, 2009)J/A+A/495/231 : Multiwavelength study of Cyg OB2 5 (Linder+, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/536/A31https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/536/A31http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/536/A31https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/536/A31https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/536/A31http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/536/A31GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/536/A31/table2 (Properties of the X-ray sources in Cyg OB2)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/536/A31/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/536/A31/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/536/A31/table2?GETtext/xml+votable180.050000true308.0341.4093060.005555555555555556Cone search capability for table J/A+A/536/A31/table4 (Properties of the UV sources in Cyg OB2)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/536/A31/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/536/A31/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/536/A31/table4?GETtext/xml+votable180.050000true308.118788941.40841110.0055555555555555566/14692-146938.650015785639275e-20 9.906711261382509e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/536/A31?format=asciiX-rayUVdefaultJ/A+A/536/A31/table2Properties of the X-ray sources in Cyg OB2m1NrSNumber of observations in EPIC-MOS1 soft bandmeta.numberintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDX[1/199] ID number of X-ray sourcemeta.idintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainpnCRSEPIC-pn count rate in soft bandct/sphot.count;em.X-raydoublepnPrSProbability that the source be constant in EPIC-pn soft bandstat.fit.goodnessfloatpnNrSNumber of observations in EPIC-pn soft bandmeta.numberintpnCRMEPIC-pn count rate in medium bandct/sphot.count;em.X-raydoublepnPrMProbability that the source be constant in EPIC-pn medium bandstat.fit.goodnessfloatpnNrMNumber of observations in EPIC-pn medium bandmeta.numberintpnCRHEPIC-pn count rate in hard bandct/sphot.count;em.X-raydoublepnPrHProbability that the source be constant in EPIC-pn hard bandstat.fit.goodnessfloatpnNrHNumber of observations in EPIC-pn hard bandmeta.numberintm1CRSEPIC-MOS1 count rate in soft bandct/sphot.count;em.X-raydoublem1PrSProbability that the source be constant in EPIC-MOS1 soft bandstat.fit.goodnessfloatm1CRMEPIC-MOS1 count rate in medium bandct/sphot.count;em.X-raydoublem1PrMProbability that the source be constant in EPIC-MOS1 medium bandstat.fit.goodnessfloatm1NrMNumber of observations in EPIC-MOS1 medium bandmeta.numberintm1CRHEPIC-MOS1 count rate in hard bandct/sphot.count;em.X-raydoublem1PrHProbability that the source be constant in EPIC-MOS1 hard bandstat.fit.goodnessfloatm1NrHNumber of observations in EPIC-MOS1 hard bandmeta.numberintm2CRSEPIC-MOS2 count rate in soft bandct/sphot.count;em.X-raydoublem2PrSProbability that the source be constant in EPIC-MOS2 soft bandstat.fit.goodnessfloatm2NrSNumber of observations in EPIC-MOS2 soft bandmeta.numberintm2CRMEPIC-MOS2 count rate in medium bandct/sphot.count;em.X-raydoublem2PrMProbability that the source be constant in EPIC-MOS2 medium bandstat.fit.goodnessfloatm2NrMNumber of observations in EPIC-MOS2 medium bandmeta.numberintm2CRHEPIC-MOS2 count rate in hard bandct/sphot.count;em.X-raydoublem2PrHProbability that the source be constant in EPIC-MOS2 hard bandstat.fit.goodnessfloatm2NrHNumber of observations in EPIC-MOS2 hard bandmeta.numberintUVM2? Mean XMM-OT/UVM2 AB-magnitude of counterpartmagphot.mag;em.UVfloatnullableUVW1? Mean XMM-OT/UVW1 AB-magnitude of counterpartmagphot.mag;em.UVfloatnullableIDOM? ID number of OM counterpartmeta.idintnullableJmag? J magnitude of 2MASS counterpartmagphot.mag;em.IR.JfloatnullableHmag? H magnitude of 2MASS counterpartmagphot.mag;em.IR.HfloatnullableKsmag? Ks magnitude of 2MASS counterpartmagphot.mag;em.IR.Kfloatnullableq2MQuality of the 2MASS counterpart (1)meta.code.qualcharVmag? V magnitude of optical counterpart from Massey & Thompson (1991, Cat. J/AJ/101/1408)magphot.mag;em.opt.VfloatnullableU-B? U-B colour of optical counterpart from Massey & Thompson (1991, Cat. J/AJ/101/1408)magphot.color;em.opt.U;em.opt.BfloatnullableB-V? B-V colour of optical counterpart from Massey & Thompson (1991, Cat. J/AJ/101/1408)magphot.color;em.opt.B;em.opt.VfloatnullableComComments on spectral type and commonly used designation of the sourcemeta.notechar2M2MASS counterparts in a radius of 5arcsecmeta.ref.urlcharJ/A+A/536/A31/table4Properties of the UV sources in Cyg OB2recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDOM[1/254] ID number of the OM sourcemeta.idintRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainUVM2? Mean XMM-OT/UVM2 (232nm) AB-magnitudemagphot.mag;em.UVfloatnullableprM2? Probability that the source be constant in UVM2 filterstat.fit.goodnessfloatnullableUVW1? Mean XMM-OT/UVW1 (299nm) AB-magnitudemagphot.mag;em.UVfloatnullableprW1? Probability that the source be constant in UVW1 filterstat.fit.goodnessfloatnullablerc1? Angular distance from likely optical counterpartarcsecpos.angDistancefloatnullableMT91? ID number of the optical counterpart in Massey & Thompson (1991, Cat. J/AJ/101/1408)meta.idintnullableVmag? V magnitude of optical counterpart from Massey & Thompson (1991, Cat. J/AJ/101/1408)magphot.mag;em.opt.VfloatnullableU-B? U-B colour of optical counterpart from Massey & Thompson (1991, Cat. J/AJ/101/1408)magphot.color;em.opt.U;em.opt.BfloatnullableB-V? B-V colour of optical counterpart frommagphot.color;em.opt.B;em.opt.Vfloatnullablerc2? Angular distance from likely 2MASS counterpartarcsecpos.angDistancefloatnullableJmag? J magnitude of 2MASS counterpartmagphot.mag;em.IR.JfloatnullableHmag? H magnitude of 2MASS counterpartmagphot.mag;em.IR.HfloatnullableKsmag? Ks magnitude of 2MASS counterpartmagphot.mag;em.IR.KfloatnullableComComments on spectral type and commonly used designation of the sourcemeta.id;meta.mainchar2M2MASS counterparts in a radius of 5arcsecmeta.ref.urlcharSimbadSimbad column added by the CDSchar