J/MNRAS/505/1607ivo://CDS.VizieR/J/MNRAS/505/1607doi:10.26093/cds/vizier.75051607CDSBhattacharya S.Agarwal M.Rao K.K.Vaidya K.2024-11-06T20:33:55Z2024-06-10T09:45:33ZCDS support team

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

cds-question@unistra.fropen-star-clustersmilky-way-galaxyvisible-astronomytrigonometric-parallaxnarrow-band-photometryinfrared-astronomyultraviolet-astronomyproper-motionsradial-velocityWe utilize the robust membership determination algorithm, ML-MOC, on the precise astrometric and deep photometric data from Gaia Early Data Release 3 within a region of radius 5 degrees around the centre of the intermediate-age Galactic open cluster NGC 752 to identify its member stars. We report the discovery of the tidal tails of NGC 752, extending out to ~35 pc on either side of its denser central region and following the cluster orbit. From comparison with PARSEC stellar isochrones, we obtain the mass function of the cluster with a slope, {Chi} = -1.26 +/- 0.07. The high negative value of {Chi} is indicative of a disintegrating cluster undergoing mass segregation. {Chi} is more negative in the intra-tidal regions as compared to the outskirts of NGC 752. We estimate a present day mass of the cluster, M_C_ = 297 +/- 10 M_{sun}_. Through mass-loss due to stellar evolution and tidal interactions, we further estimate that NGC 752 has lost nearly 95.2-98.5 per cent of its initial mass, Mi = 0.64-2 * 10^4^M_{sun}_.2021MNRAS.505.1607Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/505/1607CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/345 : Gaia DR2 (Gaia Collaboration, 2018)I/350 : Gaia EDR3 (Gaia Collaboration, 2020)J/ApJ/912/5 : Parameters of 265 open clusters (Hu+, 2021)J/A+A/618/A93 : Gaia DR2 open clusters in the Milky Way (Cantat-Gaudin+, 2018)J/ApJ/862/33 : Improved & expanded membership catalog for NGC752https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/505/1607https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/505/1607http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/505/1607https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/505/1607https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/505/1607http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/505/1607GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/505/1607/table1 (*Gaia EDR3 members identified in NGC 752 using ML-MOC)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/505/1607/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/505/1607/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/505/1607/table1?GETtext/xml+votable180.050000true29.23240573042537.7997897327260.0055555555555555565/587 610 6/2257 2269 2271 2289 2292-2293 2339 2341 2343 2347 2352 2354 2360-2361 2433-2438 2446 2450 2465-2466https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/505/1607?format=asciiUVOpticalInfrareddefaultJ/MNRAS/505/1607/table1*Gaia EDR3 members identified in NGC 752 using ML-MOC_RA.icrsRight ascension (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.raindexed_DE.icrsDeclination (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.decindexedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGaiaEDR3Gaia EDR3 source identifier (GaiaID)meta.id;meta.mainRA_ICRSBarycentric right ascension of the source (ICRS) at Ep=2016.0 (RA)degpos.eq.ra;meta.mainDE_ICRSBarycentric declination of the source (ICRS) at Ep=2016.0 (Dec)degpos.eq.dec;meta.mainplxAbsolute stellar parallax of the source at the Ep=2016.0 (omega)maspos.parallax.trigfloatpmRAProper motion in right ascension pmRA*cosDE of the source in ICRS at Ep=2016.0 (mualpha)mas/yrpos.pm;pos.eq.rafloatpmDEProper motion in declination direction (mudelta)mas/yrpos.pm;pos.eq.decfloatGmagG-band mean magnitude (Vega) (G)magphot.mag;em.optfloatBPmagIntegrated BP mean magnitude (Vega) (BP)magphot.mag;em.opt.BfloatRPmagIntegrated RP mean magnitude (Vega) (RP)magphot.mag;em.opt.RfloatRV? Radial velocity from Gaia EDR3 copied from Gaia DR2 (RV)km/sphys.veloc;pos.heliocentricfloatnullablepmembComputed NGC 752 membership probability (pmemb)stat.probability;meta.modelledfloat