J/ApJ/824/71ivo://CDS.VizieR/J/ApJ/824/71doi:10.26093/cds/vizier.18240071CDSChandar R.Whitmore B.C.Dinino D.Kennicutt R.C.Chien L.-H.,Schinnerer E.Meidt S.2017-01-23T22:00:00Z2016-09-26T12:16:12ZCDS support team

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

cds-question@unistra.fropen-star-clustersgalaxiesWe present a new catalog of 3816 compact star clusters in the grand design spiral galaxy M51 based on observations taken with the Hubble Space Telescope (HST). The age distribution of the clusters declines starting at very young ages, and can be represented by a power law, dN/d{tau}{propto}{tau}^gamma^, with {gamma}=-0.65+/-0.15. No significant changes in the shape of the age distribution at different masses is observed. The mass function of the clusters younger than {tau}~400Myr can also be described by a power law, dN/dM{propto}M^{beta}^, with {beta}~-2.1+/-0.2. We compare these distributions with the predictions from various cluster disruption models, and find that they are consistent with models where clusters disrupt approximately independent of their initial mass, but not with models where lower mass clusters are disrupted earlier than their higher mass counterparts. We find that the half-light radii of clusters more massive than M~3x10^4^M_{sun}_ and with ages between 100 and 400Myr are larger by a factor of ~3-4 than their counterparts that are younger than 10^7^ years old, suggesting that the clusters physically expand during their early life.2016ApJ...824...71Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/824/71CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/hst : HST Archived Exposures Catalog (STScI, 2007)J/MNRAS/452/525 : M83 young star cluster light profiles (Ryon+, 2015)J/MNRAS/417/L6 : Catalog of stellar cluster properties in M83 (Bastian+, 2011)J/AJ/135/1567 : Bright star clusters in M51 (Hwang+, 2008)J/A+A/397/473 : HST photometry of M51 cluster (Bik+, 2003)J/A+AS/139/393 : Young Massive Star Clusters. II. (Larsen, 1999)J/ApJ/479/231 : PNe in M51, M96 + M101 (Feldmeier+ 1997)http://archive.stsci.edu/prepds/m51/ : Hubble ACS mosaic of M51https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/824/71https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/824/71http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/824/71https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/824/71https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/824/71http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/824/71GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/824/71/table1 (Catalog of star clusters in M51)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/824/71/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/824/71/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/824/71/table1?GETtext/xml+votable180.050000true202.400405947.1302490.0055555555555555566/11026 11027https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/824/71?format=asciidefaultJ/ApJ/824/71/table1Catalog of star clusters in M51SeqRunning sequence numbermeta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintXpixX pixel coordinatepixpos.cartesian.xfloatYpixY pixel coordinatepixpos.cartesian.ydoubleRAJ2000[202.38/202.55] Right Ascension in decimal degrees (J2000) (1)degpos.eq.ra;meta.mainDEJ2000[47.1/47.3] Declination in decimal degrees (J2000) (1)degpos.eq.dec;meta.mainlogA[6/10.3]? Log agelog(yr)time.agefloatnullablelogM[2.6/6.6]? Log masslog(solMass)phys.massfloatnullable