J/MNRAS/385/1045ivo://CDS.VizieR/J/MNRAS/385/1045doi:10.26093/cds/vizier.73851045CDSMenzies J.Feast M.Whitelock P.Olivier E.Matsunaga N.Da Costa G.S.2024-07-06T20:15:42Z2008-11-20T22:37:03ZCDS support team

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

cds-question@unistra.frgalaxiesgiant-starsinfrared-photometryJHKs near-infrared photometry of stars in the Phoenix dwarf galaxy is presented and discussed. Combining these data with the optical photometry of Massey et al. (2007, Cat. <J/AJ/133/2393>) allows a rather clean separation of field stars from Phoenix members. The discovery of a Mira variable (P=425d), which is almost certainly a carbon star, leads to an estimate of the distance modulus of 23.10+/-0.18 that is consistent with other estimates and indicates the existence of a significant population of age ~2Gyr. The two carbon stars of Da Costa have Mbol=-3.8 and are consistent with belonging to a population of similar age; some other possible members of such a population are identified. A Da Costa non-carbon star is {Delta}Ks~0.3mag brighter than these two carbon stars. It may be an asymptotic giant branch star of the dominant old population. The nature of other stars lying close to it in the Ks, (J-Ks) diagram needs studying.2008MNRAS.385.1045Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/385/1045CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/133/2393 : UBVRI phot. in 7 Local Group dwarfs galaxies (Massey+, 2007)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/385/1045https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/385/1045http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/385/1045https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/385/1045https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/385/1045http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/385/1045GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/385/1045/table1 (Positions and infrared photometry for all single stars measured on the images of Phoenix obtained for this investigation)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/385/1045/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/385/1045/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/385/1045/table1?GETtext/xml+votable180.050000true27.70577-44.476830.0055555555555555566/35206 35212https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/385/1045?format=asciiInfrareddefaultJ/MNRAS/385/1045/table1Positions and infrared photometry for all single stars measured on the images of Phoenix obtained for this investigationrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[MFW2008]Sequential numbermeta.recordintRAJ2000Right ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainKsmagJohnson Ks magnitudemagphot.mag;em.IR.KfloatJ-HJohnson J-H colour indexmagphot.color;em.IR.J;em.IR.HfloatH-KsJohnson H-Ks colour indexmagphot.color;em.IR.H;em.IR.KfloatJ-KsJohnson J-Ks colour indexmagphot.color;em.IR.J;em.IR.KfloatIcmag? Cousins I magnitude from Massey et al. (2007, Cat. J/AJ/133/2393)magphot.mag;em.opt.IfloatnullableLGGSResults of Massey et al. 2007, Cat. J/AJ/133/239meta.ref.urlchar