J/AJ/144/191ivo://CDS.VizieR/J/AJ/144/191doi:10.26093/cds/vizier.51440191CDSWang S.Ma J.Fan Z.Wu Z.Zhang T.Zou H.Zhou X.2017-12-07T13:22:03Z2014-01-17T08:39:46ZCDS support team

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

cds-question@unistra.frgalaxiesstellar-associationsinfrared-photometryvisible-astronomybroad-band-photometrysloan-photometryultraviolet-photometryIn this paper, we present photometry for young star clusters in M31, which are selected from Caldwell et al. These star clusters have been observed as part of the Beijing-Arizona-Taiwan-Connecticut (BATC) Multicolor Sky Survey from 1995 February to 2008 March. The BATC images including these star clusters are taken with 15 intermediate-band filters covering 3000-10000{AA}. Combined with photometry in the GALEX far- and near-ultraviolet, broadband UBV RI, SDSS ugriz, and infrared JHK_s_ of Two Micron All Sky Survey, we obtain their accurate spectral energy distributions (SEDs) from 1538 to 20000{AA}. We derive these star clusters' ages and masses by comparing their SEDs with stellar population synthesis models. Our results are in good agreement with previous determinations. The mean value of age and mass of young clusters (<2Gyr) is about 385Myr and 2x10^4^M_{sun}_, respectively. There are two distinct peaks in the age distribution, a highest peak at age ~60Myr and a secondary peak around 250Myr, while the mass distribution shows a single peak around 10^4^M_{sun}_. A few young star clusters have two-body relaxation times greater than their ages, indicating that those clusters have not been well dynamically relaxed and therefore have not established the thermal equilibrium. There are several regions showing aggregations of young star clusters around the 10kpc ring and the outer ring, indicating that the distribution of the young star clusters is well correlated with M31's star-forming regions. The young massive star clusters (age<=100Myr and mass>=10^4^M_{sun}_) show apparent concentration around the ring splitting region, suggesting a recent passage of a satellite galaxy (M32) through M31 disk.2012AJ....144..191Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/144/191CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/312 : GALEX-DR5 (GR5) sources from AIS and MIS (Bianchi+ 2011)II/281 : 2MASS 6X Point Source Working Database / Catalog (Cutri+ 2006)II/262 : BATC Data Release One - BATC DR1 (Zhou+ 1995-2005)J/ApJS/199/37 : GALEX catalog of star clusters in M31 (Kang+, 2012)J/AJ/141/61 : Star clusters in M31. II. (Caldwell+, 2011)J/AJ/139/1438 : SED & age estimates of 104 M31 GCs (Wang+, 2010)J/MNRAS/402/803 : M31 globular cluster system (Peacock+, 2010)J/AJ/137/94 : Star clusters in M31 (Caldwell+, 2009)J/A+A/508/1285 : Metallicity estimates of M31 GCs (Galleti+, 2009)J/ApJ/703/1872 : Compact star clusters in the M31 disk (Vansevicius+, 2009)J/ApJS/177/174 : Star clusters in M31 (Narbutis+, 2008)J/A+A/471/127 : New globular clusters in M31 (Galleti+, 2007)J/ApJS/173/643 : GALEX UV photometry of M31 Globular Clusters (Rey+, 2007)J/A+A/449/143 : Photometry of M31 globular cluster candidates (Ma+, 2006)J/A+A/456/985 : RVs of 76 M31 candidate clusters (Galleti+, 2006)J/AJ/131/1416 : IR Photometry of nearby globular clusters (Nantais+, 2006)J/A+A/416/917 : Revised Bologna Catalog of M31 GCs (Galleti+, 2004)J/AJ/119/727 : M31 globular clusters photometry (Barmby+, 2000)J/AJ/112/628 : BATC Color Survey of M67 (Fan+ 1996)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/144/191https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/144/191http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/144/191https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/144/191https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/144/191http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/144/191GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/144/191/M31sc (Star clusters in M31: GALEX, SDSS, optical/near-IR broad-band photometry (table2), Beijing-Arizona-Taipei-Connecticut (BATC) intermediate-band photometry (table1), ages, masses, and reddening values (table 3))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/144/191/M31sc?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/144/191/M31sc?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/144/191/M31sc?GETtext/xml+votable180.050000true10.155620840.81269720.0055555555555555566/2622 2623 2666 2705 2708 2709 27528.650015785639275e-20 1.4134638842407062e-18https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/144/191?format=asciiInfraredOpticalUVdefaultJ/AJ/144/191/M31scStar clusters in M31: GALEX, SDSS, optical/near-IR broad-band photometry (table2), Beijing-Arizona-Taipei-Connecticut (BATC) intermediate-band photometry (table1), ages, masses, and reddening values (table 3)SimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSEDSED plot from the photometrymeta.ref.urlcharNameStar cluster namemeta.id;meta.maincharf_Name[a] Photometric flag on Name (1)meta.codecharFUV? GALEX FUV band magnitude, AB scale (2)magphot.mag;em.UV.100-200nmfloatnullablee_FUV? Uncertainty in FUVmagstat.errorfloatnullableNUV? GALEX NUV band magnitude, AB scale (2)magphot.mag;em.UVfloatnullablee_NUV? Uncertainty in NUVmagstat.errorfloatnullableUmag? Johnson U band magnitude (3)magphot.mag;em.opt.Ufloatnullablee_Umag? Uncertainty in Umagmagstat.error;phot.mag;em.opt.UfloatnullableBmag? Johnson B band magnitude (3)magphot.mag;em.opt.Bfloatnullablee_Bmag? Uncertainty in Bmagmagstat.error;phot.mag;em.opt.BfloatnullableVmag? Johnson V band magnitude (3)magphot.mag;em.opt.Vfloatnullablee_Vmag? Uncertainty in Vmagmagstat.error;phot.mag;em.opt.VfloatnullableRmag? Johnson-Cousins R band magnitude (3)magphot.mag;em.opt.Rfloatnullablee_Rmag? Uncertainty in Rmagmagstat.error;phot.mag;em.opt.RfloatnullableImag? Johnson-Cousins I band magnitude (3)magphot.mag;em.opt.Ifloatnullablee_Imag? Uncertainty in Imagmagstat.error;phot.mag;em.opt.Ifloatnullableumag? SDSS u band magnitude, AB scale (4)magphot.mag;em.opt.Ufloatnullablee_umag? Uncertainty in umagmagstat.error;phot.mag;em.opt.Ufloatnullablegmag? SDSS g band magnitude, AB scale (4)magphot.mag;em.opt.Bfloatnullablee_gmag? Uncertainty in gmagmagstat.error;phot.mag;em.opt.Bfloatnullablermag? SDSS r band magnitude, AB scale (4)magphot.mag;em.opt.Rfloatnullablee_rmag? Uncertainty in rmagmagstat.error;phot.mag;em.opt.Rfloatnullableimag? SDSS i band magnitude, AB scale (4)magphot.mag;em.opt.Ifloatnullablee_imag? Uncertainty in imagmagstat.error;phot.mag;em.opt.Ifloatnullablezmag? SDSS z band magnitude, AB scale (4)magphot.mag;em.opt.Ifloatnullablee_zmag? Uncertainty in zmagmagstat.error;phot.mag;em.opt.IfloatnullableJmag? 2MASS J band magnitude (5)magphot.mag;em.IR.Jfloatnullablee_Jmag? Uncertainty in Jmagmagstat.error;phot.mag;em.IR.JfloatnullableHmag? 2MASS H band magnitude (5)magphot.mag;em.IR.Hfloatnullablee_Hmag? Uncertainty in Hmagmagstat.error;phot.mag;em.IR.HfloatnullableKmag? 2MASS Ks band magnitude (5)magphot.mag;em.IR.Kfloatnullablee_Kmag? Uncertainty in Kmagmagstat.error;phot.mag;em.IR.KfloatnullablelogALog of the agelog(yr)time.agefloate_logAUncertainty in logAlog(yr)stat.errorfloatlogM? Log of the masslog(solMass)phys.massfloatnullablee_logM? Uncertainty in logMlog(solMass)stat.errorfloatnullableE(B-V)The (B-V) color excess adoptedmagphot.color.excessfloate_E(B-V)Uncertainty in E(B-V)magstat.errorfloatr_E(B-V)Method for deriving E(B-V) (7)meta.ref;pos.frameintM31Cross-matches with other M31 star clusters catalogs (Peacock et al., 2010, cat. J/MNRAS/402/803; Galleti et al., 2004, cat. J/A+A/416/917; Kang et al., 2012, cat. J/ApJS/199/37; and Caldwell et al., 2009, cat. J/AJ/137/94) within 1.5"meta.ref.urlintnullableamag? BATC a band magnitude (3360{AA}), AB scale (6)magphot.mag;em.opt.Ufloatnullablee_amag? 1{sigma} uncertainty in amagmagstat.error;phot.magfloatnullablebmag? BATC b band magnitude (3890{AA}), AB scale (6)magphot.mag;em.opt.Ufloatnullablee_bmag? 1{sigma} uncertainty in bmagmagstat.error;phot.mag;em.opt.Bfloatnullablecmag? BATC c band magnitude (4210{AA}), AB scale (6)magphot.mag;em.opt.Bfloatnullablee_cmag? 1{sigma} uncertainty in cmagmagstat.error;phot.magfloatnullabledmag? BATC d band magnitude (4550{AA}), AB scale (6)magphot.mag;em.opt.Bfloatnullablee_dmag? 1{sigma} uncertainty in dmagmagstat.error;phot.magfloatnullableemag? BATC e band magnitude (4925{AA}), AB scale (6)magphot.mag;em.opt.Bfloatnullablee_emag? 1{sigma} uncertainty in emagmagstat.error;phot.magfloatnullablefmag? BATC f band magnitude (5270{AA}), AB scale (6)magphot.mag;em.opt.Vfloatnullablee_fmag? 1{sigma} uncertainty in fmagmagstat.error;phot.magfloatnullablegmag1? BATC g band magnitude (5795{AA}), AB scale (6)magphot.mag;em.opt.Vfloatnullablee_gmag1? 1{sigma} uncertainty in gmag1magstat.error;phot.magfloatnullablehmag? BATC h band magnitude (6075{AA}), AB scale (6)magphot.mag;em.opt.Vfloatnullablee_hmag? 1{sigma} uncertainty in hmagmagstat.error;phot.magfloatnullableimag1? BATC i band magnitude (6660{AA}), AB scale (6)magphot.mag;em.opt.Rfloatnullablee_imag1? 1{sigma} uncertainty in imag1magstat.error;phot.magfloatnullablejmag? BATC j band magnitude (7050{AA}), AB scale (6)magphot.mag;em.opt.Rfloatnullablee_jmag? 1{sigma} uncertainty in jmagmagstat.error;phot.magfloatnullablekmag? BATC k band magnitude (7490{AA}), AB scale (6)magphot.mag;em.opt.Rfloatnullablee_kmag? 1{sigma} uncertainty in kmagmagstat.error;phot.magfloatnullablemmag? BATC m band magnitude (8020{AA}), AB scale (6)magphot.mag;em.opt.Ifloatnullablee_mmag? 1{sigma} uncertainty in mmagmagstat.error;phot.magfloatnullablenmag? BATC n band magnitude (8480{AA}), AB scale (6)magphot.mag;em.opt.Ifloatnullablee_nmag? 1{sigma} uncertainty in nmagmagstat.error;phot.magfloatnullableomag? BATC o band magnitude (9190{AA}), AB scale (6)magphot.mag;em.opt.Ifloatnullablee_omag? 1{sigma} uncertainty in omagmagstat.error;phot.magfloatnullablepmag? BATC p band magnitude (9745{AA}), AB scale (6)magphot.mag;em.opt.Ifloatnullablee_pmag? 1{sigma} uncertainty in pmagmagstat.error;phot.magfloatnullableAperAperture radiusarcsecphys.angSizefloat_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