J/AJ/139/1413ivo://CDS.VizieR/J/AJ/139/1413doi:10.26093/cds/vizier.51391413CDSNantais J.B.Huchra J.P.McLeod B.Strader J.Brodie J.P.2017-06-13T11:08:06Z2012-07-01T13:16:39ZCDS support team

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

cds-question@unistra.frgalaxiesstellar-associationsphotometryWe present a catalog of extended objects in the vicinity of M81 based on a set of 24 Hubble Space Telescope Advanced Camera for Surveys Wide Field Camera F814W (I-band) images. We have found 233 good globular cluster (GC) candidates; 92 candidate HII regions, OB associations, or diffuse open clusters; 489 probable background galaxies; and 1719 unclassified objects. We have color data from ground-based g- and r-band MMT Megacam images for 79 galaxies, 125 GC candidates, 7 HII regions, and 184 unclassified objects. The color-color diagram of GC candidates shows that most fall into the range 0.25<g-r<1.25 and 0.5<r-I<1.25, similar to the color range of Milky Way GCs. Unclassified objects are often blue, suggesting that many of them are likely to be HII regions and open clusters, although a few galaxies and GCs may be among them.2010AJ....139.1413Nhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/139/1413CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/109/1055 : Globulars of M81 (Perelmuter+ 1995)J/ApJ/438/181 : Observations of H II Regions in M81 (Hill+ 1995)J/AJ/122/1330 : HST BVI photometry of M 81 star clusters (Chandar+, 2001)J/MNRAS/405/1293 : Compact star clusters in M81 (Santiago-Cortes+, 2010)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/139/1413https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/139/1413http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/139/1413https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/139/1413https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/139/1413http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/139/1413GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/139/1413/catalog (Catalog of the objects observed)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/139/1413/catalog?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/139/1413/catalog?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/139/1413/catalog?GETtext/xml+votable180.050000true148.440541769.17068330.0055555555555555566/7606https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/139/1413?format=asciiOpticaldefaultJ/AJ/139/1413/catalogCatalog of the objects observedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[1/2533] Running index identification number, <[NHM2010] NNNN> in Simbadmeta.id;meta.mainintRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainFWHMFull-Width at Half-Maximumarcsecphys.angSizefloatElong[1/6] Elongation (b/a)phys.size.axisRatioPR? Closest Perelmuter and Racine (1995, Cat. J/AJ/109/1055) objectmeta.idintnullableu_PR[?] Uncertainty flag on PRmeta.code.errorcharCFT? Closest Chandar, Ford, and Tsvetanov (2001, Cat. J/AJ/122/1330) objectmeta.idintnullablen_CFT[(b) ] Note on CFT (unexplained)meta.notecharSpecSpectroscopic match (1)meta.idcharTypeSource type: GC cand, Galaxy, Galaxy+Star, HII/OB or Othersrc.classcharOff? Megacam offsetarcsecpos;arith.difffloatnullableImag? I band magnitudemagphot.mag;em.opt.Ifloatnullablee_Imag? The 1{sigma} error in Imagmagstat.error;phot.mag;em.opt.Ifloatnullabler-I? The (r-I) color indexmagphot.color;em.opt.R;em.opt.Ifloatnullablee_r-I? The 1{sigma} error in r-Imagstat.errorfloatnullableg-r? The (g-r) color indexmagphot.color;em.opt.B;em.opt.Rfloatnullablee_g-r? The 1{sigma} error in g-rmagstat.error;phot.color;em.opt.BfloatnullableRad? HST radiusarcsecphys.angSize;srcfloatnullableNoteHST sky annulus note (2)meta.notecharSkyIn? Inner boundary of sky annulus for colors (2)arcsecstat.fit.paramfloatnullableSkyWid? Width of sky annulus for colors (2)arcsecstat.fit.paramfloatnullableColorColor note (3)meta.notechar