J/MNRAS/405/1293ivo://CDS.VizieR/J/MNRAS/405/1293doi:10.26093/cds/vizier.74051293CDSSantiago-Cortes M.Mayya Y.D.Rosa-Gonzalez D.2024-07-11T20:16:42Z2011-01-07T14:15:15ZCDS support team

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

cds-question@unistra.frgalaxiesstellar-associationshst-photometryWe study the population of compact star clusters (CSCs) in M81, using the Hubble Space Telescope/Advanced Camera for Surveys (ACS) images in the filters F435W, F606W and F814W covering, for the first time, the entire optical extent of the galaxy. Our sample contains 435 clusters of full width at half-maximum less than 10 ACS pixels (9pc). The sample shows the presence of two cluster populations, a blue group of 263 objects brighter than B=22mag, and a red group of 172 objects, brighter than B=24mag. On the basis of analysis of colour-magnitude diagrams and making use of simple stellar population models,2010MNRAS.405.1293Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/405/1293CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/109/1055 : Globulars of M81 (Perelmuter+ 1995)J/AJ/122/1330 : HST BVI photometry of M 81 star clusters (Chandar+, 2001)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/405/1293https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/405/1293http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/405/1293https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/405/1293https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/405/1293http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/405/1293GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/405/1293/table3 (*Observational properties of compact stellar clusters of both blue and red groups)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/405/1293/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/405/1293/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/405/1293/table3?GETtext/xml+votable180.050000true148.8418408369.110512220.0055555555555555566/76064.443198085773194e-19 4.75565502943315e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/405/1293?format=asciiOpticaldefaultJ/MNRAS/405/1293/table3*Observational properties of compact stellar clusters of both blue and red groupsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName (ANNANNNNN) (1)meta.id;meta.maincharRAJ2000Right ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainBmag.iISOPHOT B magnitudemagphot.mag;em.opt.BfloatB-I? F435W-F814W (B-I) colour index in Vega system (2)magphot.color;em.opt.B;em.opt.IfloatnullableB-RF435W-F606W (B-R) colour index in Vega system (2)magphot.color;em.opt.B;em.opt.RfloatBmag.aAperture B magnitude within a radius of 10 pixels (0.5arcsec)magphot.mag;em.opt.BfloatFWHMPeak size at full width at half-maximum (FWHM)pixphys.angSize;stat.maxfloatellEllipticity (1-b/a)src.ellipticityfloat