J/MNRAS/516/1289ivo://CDS.VizieR/J/MNRAS/516/1289doi:10.26093/cds/vizier.75161289CDSNavarete F.Damineli A.Ramirez A.E.Rocha D.F.Almeida L.A.2024-08-22T20:16:16Z2022-10-04T13:20:51ZCDS support team

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

cds-question@unistra.frstellar-associationsvisible-astronomytrigonometric-parallaxproper-motionsWesterlund 1 (Wd 1) is one of the most massive young star clusters in the Milky Way. Although relevant for star formation and evolution, its fundamental parameters are not yet very well constrained. We aim to derive an accurate distance and provide constraints on the cluster age. We used the photometric and astrometric information available in the Gaia Early Data Release 3 (Gaia-EDR3) to infer its distance of 4.06^+0.36^_-0.34_kpc. Modelling of the eclipsing binary system W36, reported in Paper II (Rocha et al., 2022, in prep.), led to the distance of 4.03+/-0.25kpc, in agreement with the Gaia-EDR3 distance and, therefore, validating the parallax zero-point correction approach appropriate for red objects. The weighted average distance based on these two methods results in d_wd1_=4.05+/-0.20kpc (m-M=13.04^+0.11^_-0.12_mag), which has an unprecedented accuracy of 5%. Using the Binary Population and Spectral Synthesis (BPASS) models for the Red Supergiants with solar abundance, we derived an age of 10.7+/-1Myr, in excellent agreement with recent work by Beasor et al. (2021ApJ...912...16B) (10.4^+1.3^_-1.2_Myr) based on MIST evolutionary models. In Paper II, the age of W36B was reported to be 6.4+/-0.5Myr, supporting recent claims of a temporal spread of several Myrs for the star-forming process within Wd1 instead of a single monolithic starburst episode scenario.2022MNRAS.516.1289Nhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/516/1289CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/350 : Gaia EDR3 (Gaia Collaboration, 2020)J/A+A/635/A187 : Massive binaries in Westerlund 1. VII. (Clark+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/516/1289https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/516/1289http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/516/1289https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/516/1289https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/516/1289http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/516/1289GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/516/1289/table3 (Classification, photometry, reddening and bolometric luminosities for the Red Supergiants and Yellow Hypergiants)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/516/1289/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/516/1289/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/516/1289/table3?GETtext/xml+votable180.050000true251.7629572-45.87193360.005555555555555556Cone search capability for table J/MNRAS/516/1289/tablea1 (List of known Westerlund 1 members with Gaia EDR3 counterparts associated with a 5-parameter astrometric solution (5-p))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/516/1289/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/516/1289/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/516/1289/tablea1?GETtext/xml+votable180.050000true251.7488233-45.84755310.005555555555555556Cone search capability for table J/MNRAS/516/1289/tablea2 (List of known Westerlund 1 members with Gaia-EDR3 counterparts associated with a 6-parameter astrometric solution (6-p))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/516/1289/tablea2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/516/1289/tablea2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/516/1289/tablea2?GETtext/xml+votable180.050000true251.7695697-45.85665390.005555555555555556Cone search capability for table J/MNRAS/516/1289/tablea3 (List of known Westerlund 1 members with no astrometric information)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/516/1289/tablea3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/516/1289/tablea3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/516/1289/tablea3?GETtext/xml+votable180.050000true251.7475-45.84631140.0055555555555555566/42206-422077.952274030004205e-20 1.7798557115773645e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/516/1289?format=asciiOpticaldefaultJ/MNRAS/516/1289/table3Classification, photometry, reddening and bolometric luminosities for the Red Supergiants and Yellow HypergiantsSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJmagApparent magnitude in J bandmagphot.mag;em.IR.JfloatHmagApparent magnitude in H bandmagphot.mag;em.IR.HfloatKsmagApparent magnitude in Ks bandmagphot.mag;em.IR.KfloatAKsExtinction at the Ks-bandmagphys.absorptionfloate_AKsError of AKsmagstat.errorfloatlogLbollogarithm of the Bolometric luminositylog(solLum)phys.luminosityfloate_logLbollogarithm of the Bolometric luminosity errorlog(solLum)stat.errorfloatlogLbolB21logarithm of the Bolometric luminosity from Beasor et al., (2021ApJ...912...16B) scaled to the distance of Wd1 )log(solLum)phys.luminosityfloat_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainNameName of the source (G1)meta.id;meta.maincharClassClassification of the source (RSG/YHG)src.classcharSpTypeSpectral Type classificationsrc.spTypecharlogTeff? logarithm of the Effective temperaturelog(K)phys.temperature.effectivefloatnullableJ/MNRAS/516/1289/tablea1List of known Westerlund 1 members with Gaia EDR3 counterparts associated with a 5-parameter astrometric solution (5-p)SimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the source (G1)meta.id;meta.mainchar2MASS2MASS designationmeta.idcharGaiaEDR3Gaia-EDR3 designationmeta.idRUWERenormalized Unit Weight Errorstat.errorfloatplx? Parallax from Gaia EDR3maspos.parallax.trigfloatnullablee_plx? Parallax error from Gaia EDR3masstat.error;pos.parallaxfloatnullablezp-plx? Parallax zero-point correctionmasarith.factorfloatnullablepmRAProper motion in RA directionmas/yrpos.pm;pos.eq.rafloate_pmRAProper motion error on RA directionmas/yrstat.error;pos.pm;pos.eq.rafloatpmDEProper motion in Dec directionmas/yrpos.pm;pos.eq.decfloate_pmDEProper motion error on Dec directionmas/yrstat.error;pos.pm;pos.eq.decfloatnueffEffective wavenumberum**-1em.freqfloatminphoterMinimum photometric error on the G, BP and RP bands (in standard deviation units)stat.errorfloatGmag? Apparent magnitude in G bandmagphot.mag;em.optfloatnullableBPmag? Apparent magnitude in BP bandmagphot.mag;em.opt.BfloatnullableRPmag? Apparent magnitude in RP bandmagphot.mag;em.opt.Rfloatnullable_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainGSCGSC designationmeta.idcharJ/MNRAS/516/1289/tablea2List of known Westerlund 1 members with Gaia-EDR3 counterparts associated with a 6-parameter astrometric solution (6-p)SimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the source (G1)meta.id;meta.maincharGSCGSC designationmeta.idchar2MASS2MASS designationmeta.idcharGaiaEDR3Gaia-EDR3 designationmeta.idRUWERenormalized Unit Weight Errorstat.errorfloatplx? Parallax from Gaia EDR3maspos.parallax.trigfloatnullablee_plx? Parallax error from Gaia EDR3masstat.error;pos.parallaxfloatnullablezp-plx? Parallax zero-point correctionmasarith.factorfloatnullablepmRAProper motion in RA directionmas/yrpos.pm;pos.eq.rafloate_pmRAProper motion error on RA directionmas/yrstat.error;pos.pm;pos.eq.rafloatpmDEProper motion in Dec directionmas/yrpos.pm;pos.eq.decfloate_pmDEProper motion error on Dec directionmas/yrstat.error;pos.pm;pos.eq.decfloatpseudoPseudo-colour (in the Gaia catalogue)um**-1em.freqfloatminphoterMinimum photometric error on the G, BP and RP bands (in standard deviation units)stat.errorfloatGmag? Apparent magnitude in G bandmagphot.mag;em.optfloatnullableBPmag? Apparent magnitude in BP bandmagphot.mag;em.opt.BfloatnullableRPmag? Apparent magnitude in RP bandmagphot.mag;em.opt.Rfloatnullable_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/MNRAS/516/1289/tablea3List of known Westerlund 1 members with no astrometric informationSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the source (G1)meta.id;meta.maincharGSCGSC designationmeta.idchar2MASS2MASS designationmeta.idcharGaiaEDR3? Gaia-EDR3 designationmeta.idnullable_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main