J/A+A/417/479ivo://CDS.VizieR/J/A+A/417/479doi:10.26093/cds/vizier.34170479CDSBattinelli P.Demers S.2004-06-06T21:20:25Z2004-06-06T21:20:07ZCDS support team

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

cds-question@unistra.frcarbon-starsinfrared-photometryvisible-astronomyphotometryccd-photometryWe used the CFH12K wide field camera to survey the carbon star population of NGC 185 using the CN-TiO technique. 145 C stars are identified with a mean <I>=19.99+/-0.05, corresponding to <M_I_>=-4.41+/-0.05, a mean luminosity similar to what was recently found for the C star population of NGC 147. The stellar surface density profile of NGC 185 follows a power law with an exponential scale length of 2.53+/-0.07'. The surface density of C stars follows also a power law but with a smaller scale length, 1.56+/-0.06, demonstrating that the intermediate-age population of NGC 185 is more concentrated than its old population. A tidal radius, r_t_=22.5+/-2.2' is determined from red giant star counts. The C/M ratio of NGC 185 is 0.17+/-0.02 with no apparent sign of a radial gradient. We compare the carbon star populations of NGC 185 and NGC 147 to conclude that it is unlikely that they form a close pair.2004A&A...417..479Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/417/479CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/119/2780 : C stars in IC 1613 (Albert+, 2000)J/AJ/120/1801 : C stars in Pegasus, DDO 210 and Tucana (Battinelli+, 2000)J/AJ/123/832 : C star population in NGC 6822 (Letarte+, 2002)J/AJ/125/1298 : C star population in outer disk of M31 (Battinelli+, 2003)J/A+A/410/795 : Photometry of NGC 3109 carbon stars (Demers+, 2003)J/A+A/416/111 : C stars in Wolf-Lundmark-Melotte galaxy (Battinelli+, 2004)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/417/479https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/417/479http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/417/479https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/417/479https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/417/479http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/417/479GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/417/479/table2 (Positions and photometry of 145 C stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/417/479/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/417/479/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/417/479/table2?GETtext/xml+votable180.050000true9.529708348.26269440.0055555555555555566/2774 2780https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/417/479?format=asciiOpticalInfrareddefaultJ/A+A/417/479/table2Positions and photometry of 145 C starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/145] Running numbermeta.id;meta.mainintRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainImagI magnitude (Mould filter 832.6nm)magphot.mag;em.opt.Ifloate_ImagError on Imagmagstat.errorfloatR-IR-I colour index (Mould filters 649.3 832.6nm)magphot.color;em.opt.R;em.opt.Ifloate_R-IError on R-Imagstat.errorfloatCN-TiOCN-TiO colour index (1)magphot.colorfloate_CN-TiOError on CN-TiOmagstat.errorfloat