J/A+A/538/A74ivo://CDS.VizieR/J/A+A/538/A74doi:10.26093/cds/vizier.35380074CDSPeter D.Feldt M.Henning T.Hormuth F.2017-10-13T15:41:53Z2012-05-19T15:03:16ZCDS support team

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

cds-question@unistra.fropen-star-clustersmultiple-starsstellar-spectral-typesTwo different formation scenarios for stars of masses larger than 10M_{sun}_ exist. Although simulations within both scenarios are capable of producing stars up to the highest observed masses, the relevance of the two formation scenarios for massive star-formation is not yet clear. We aim to detect companions to massive stars to constrain the binary parameters of the multiple systems. These findings will help to constrain the formation of massive stars.2012A&A...538A..74Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/538/A74CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/146 : Positions and Proper Motions - North (Roeser+, 1988)III/18 : Stellar Spectra Class. in Morgan-Keenan System (Jaschek+ 1964)II/277 : UBVRI photometry of faint field stars (Skiff, 2007)J/A+AS/94/519 : uvby-beta Photometry of Cep OB3 (Jordi+ 1992)J/ApJ/638/897 : IR photometry in Trumpler 37 & NGC 7160 (Sicilia-Aguilar+ 2006)J/ApJ/710/597 : Accretion in disks in Cep OB2 (Sicilia-Aguilar+, 2010)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/538/A74https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/538/A74http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/538/A74https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/538/A74https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/538/A74http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/538/A74GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/538/A74/tablea1 (Target list of AstraLux observations)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/538/A74/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/538/A74/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/538/A74/tablea1?GETtext/xml+votable180.050000true342.6562.4633330.0055555555555555565/3869 6/15453 15455 15463 15474 15481 15484 15486-15487 15511 15553 15556 15560-15561 15568 15571-15574 15577 15580 15625 15631 15648 15650 15652-15653 15656 15660 15662-15663 15667 15670 15672 15674 15681-15684 15686 15689-15690 15692 15745-15746 15748-15749https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/538/A74?format=asciiOpticaldefaultJ/A+A/538/A74/tablea1Target list of AstraLux observationsNameStar namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainSpTypeMK spectral typesrc.spTypecharSep? Separation of the detected companions up to a maximum separation of 3". Any companion further out is not shownarcsecpos.angDistance;src.orbitalfloatnullableu_Sep[?] Uncertainty flag on Sepmeta.code.errorcharPA? Position angledegpos.posAngfloatnullableu_PA[?] Uncertainty flag on PAmeta.code.errorcharq? Magnitude difference between primary and secondarymagphot.mag;arith.difffloatnullableu_q[?] Uncertainty flag on qmeta.code.errorcharMmb[y n pm] Membership of the target to the association: y=yes, n=no, pm=probable member, pn=probable non-membermeta.id.assoc;pos.cartesian.ycharr_MmbReference for Mmb (1)meta.ref;pos.framecharSpType1Other MK spectral typesrc.spTypecharr_SpType1Reference(s) for SpType1 (1)meta.ref;pos.framecharSpType2Other MK spectral typesrc.spTypecharr_SpType2Reference(s) for SpType2 (1)meta.ref;pos.framecharSpType3Other MK spectral typesrc.spTypecharr_SpType3Reference(s) for SpType3 (1)meta.ref;pos.framecharSpType4Other MK spectral typesrc.spTypecharr_SpType4Reference(s) for SpType4 (1)meta.ref;pos.framecharSpType5Other MK spectral typesrc.spTypecharr_SpType5Reference(s) for SpType5 (1)meta.ref;pos.framecharSimbadSimbad column added by the CDSmeta.refchar