J/MNRAS/472/1760ivo://CDS.VizieR/J/MNRAS/472/1760doi:10.26093/cds/vizier.74721760CDSGennaro M.Goodwin S.P.Parker R.J.Allison R.J.Brandner W.2024-08-17T20:20:46Z2020-08-11T09:54:03ZCDS support team

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

cds-question@unistra.fropen-star-clustersinfrared-photometryvisible-astronomybroad-band-photometryWe examine the level of substructure and mass segregation in the massive, young cluster Westerlund 1. We find that it is relatively smooth, with little or no mass segregation, but with the massive stars in regions of significantly higher than average surface density. While an expanding or bouncing-back scenario for the evolution of Westerlund 1 cannot be ruled out, we argue that the most natural model to explain these observations is one in which Westerlund 1 formed with no primordial mass segregation and at a similar or larger size than we now observe.2017MNRAS.472.1760Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/472/1760CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)J/AJ/133/2696 : BVRI light curves of Westerlund 1 stars (Bonanos, 2007)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/472/1760https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/472/1760http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/472/1760https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/472/1760https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/472/1760http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/472/1760GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/472/1760/table1 (Selected rows and columns from the full photometric catalogue)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/472/1760/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/472/1760/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/472/1760/table1?GETtext/xml+votable180.050000true251.7385559-45.88556290.0055555555555555566/42206-422078.650015785639275e-20 1.7003137259100215e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/472/1760?format=asciiOpticalInfrareddefaultJ/MNRAS/472/1760/table1Selected rows and columns from the full photometric cataloguerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDIdentification Numbermeta.id;meta.mainintRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainSourceCatalog from which the photometric mass has been inferredmeta.idcharCl[0/1] Flag indicating whether or not the star has been removed from the catalog using sigma-clipping (0:removed, 1:kept) (1)meta.codeintSb[0/1] Flag indicating whether or not the star has been removed from the catalog using statistical field subtraction (0:removed, 1:kept) (1)meta.codeintProbMembership probabilitystat.probabilityfloatMNIR? Mass obtained from Near Infrared photometrysolMassphys.massfloatnullableMOPT? Mass obtained from Optical photometrysolMassphys.massfloatnullableJSmag? J band photometry from SofI observations, calibrated on the 2MASS systemmagphot.mag;em.IR.Jfloatnullablee_JSmag? SofI J band photometric errormagstat.error;phot.magfloatnullableHSmag? H band photometry from SofI observations, calibrated on the 2MASS systemmagphot.mag;em.IR.Hfloatnullablee_HSmag? SofI H band photometric errormagstat.error;phot.magfloatnullableKsSmag? Ks band photometry from SofI observations, calibrated on the 2MASS systemmagphot.mag;em.IR.Kfloatnullablee_KsSmag? SofI Ks band photometric errormagstat.error;phot.magfloatnullableJ2mag? J band photometry from the 2MASS-PSC (Skrutskie et al., 2006, Cat. VII/233)magphot.mag;em.IR.Jfloatnullablee_J2mag? 2MASS-PSC J band photometric errormagstat.error;phot.magfloatnullableH2mag? H band photometry from the 2MASS-PSC (Skrutskie et al., 2006, Cat. VII/233)magphot.mag;em.IR.Hfloatnullablee_H2mag? 2MASS-PSC H band photometric errormagstat.error;phot.magfloatnullableKs2mag? Ks band photometry from the 2MASS-PSC (Skrutskie et al., 2006, Cat. VII/233)magphot.mag;em.IR.Kfloatnullablee_Ks2mag? 2MASS-PSC Ks band photometric errormagstat.error;phot.magfloatnullableIDNObject ID, Cl* Westerlund 1 WNNa in Simbad (Negueruela et al., 2010A&A...516A..78N)meta.idcharSpTypeNSpectral Type (Negueruela et al., 2010A&A...516A..78N)src.spTypecharBNmag? B band photometry (Negueruela et al., 2010A&A...516A..78N)magphot.mag;em.opt.BfloatnullableVNmag? V band photometry (Negueruela et al., 2010A&A...516A..78N)magphot.mag;em.opt.VfloatnullableRNmag? R band photometry (Negueruela et al., 2010A&A...516A..78N)magphot.mag;em.opt.RfloatnullableINmag? I band photometry (Negueruela et al., 2010A&A...516A..78N)magphot.mag;em.opt.IfloatnullableIDBObject ID (Bonanos, 2007, Cat. J/AJ/133/2696)meta.idcharSpTypeBSpectral Type (Bonanos, 2007, Cat. J/AJ/133/2696)src.spTypecharBBmag? B band photometry (Bonanos, 2007, Cat. J/AJ/133/2696)magphot.mag;em.opt.BfloatnullableVBmag? V band photometry (Bonanos, 2007, Cat. J/AJ/133/2696)magphot.mag;em.opt.VfloatnullableRBmag? R band photometry (Bonanos, 2007, Cat. J/AJ/133/2696)magphot.mag;em.opt.RfloatnullableIBmag? I band photometry (Bonanos, 2007, Cat. J/AJ/133/2696)magphot.mag;em.opt.Ifloatnullable