J/MNRAS/394/795ivo://CDS.VizieR/J/MNRAS/394/795doi:10.26093/cds/vizier.73940795CDSWhitelock P.A.Menzies J.W.Feast M.W.Matsunaga N.Tanabe T.Ita Y.2024-07-08T20:15:39Z2009-12-20T12:53:21ZCDS support team

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

cds-question@unistra.frgalaxiesgiant-starsinfrared-photometryWe report on a multi-epoch study of the Fornax dwarf spheroidal galaxy, made with the Infrared Survey Facility, over an area of about 42x42arcmin^2^. The colour-magnitude diagram shows a broad well-populated giant branch with a tip that slopes downwards from red to blue, as might be expected given Fornax's known range of age and metallicity. The extensive asymptotic giant branch (AGB) includes seven Mira variables and 10 periodic semiregular variables. Five of the seven Miras are known to be carbon rich. Their pulsation periods range from 215 to 470d, indicating a range of initial masses. Three of the Fornax Miras are redder than typical Large Magellanic Cloud (LMC) Miras of similar period, probably indicating particularly heavy mass-loss rates. Many, but not all, of the characteristics of the AGB are reproduced by isochrones from Marigo et al. (2008A&A...482..883M) for a 2Gyr population with a metallicity of Z=0.0025.2009MNRAS.394..795Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/394/795CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)J/PASP/110/533 : BR photometry of Fornax bright stars (Stetson+ 1998)J/AJ/123/840 : VI photometry of variable stars in Fornax (Bersier+, 2002)J/A+A/459/423 : VI and [Fe/H] of Fornax dSph RGB stars (Battaglia+, 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/394/795https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/394/795http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/394/795https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/394/795https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/394/795http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/394/795GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/394/795/table1 (Non-variable ({sigma}(J){sigma}(H){sigma}(Ks)<0.11) upper AGB candidates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/394/795/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/394/795/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/394/795/table1?GETtext/xml+votable180.050000true39.553333-34.5823890.005555555555555556Cone search capability for table J/MNRAS/394/795/variables (Variables })https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/394/795/variables?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/394/795/variables?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/394/795/variables?GETtext/xml+votable180.050000true40.2176667-34.62305560.0055555555555555566/35883 35968-35969https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/394/795?format=asciiInfrareddefaultJ/MNRAS/394/795/table1Non-variable ({sigma}(J){sigma}(H){sigma}(Ks)<0.11) upper AGB candidatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.main[WMF2009]Running number unique to the star within our system, [WMF2009] F NNNNN in Simbadmeta.id;meta.mainintJmagJ magnitudemagphot.mag;em.IR.JfloatHmagH magnitudemagphot.mag;em.IR.HfloatKsmagKs magnitudemagphot.mag;em.IR.KfloatJ-KsJ-Ks colour indexmagphot.color;em.IR.J;em.IR.Kfloat2MASS2MASS name (HHMMSSss+DDMMSSs)meta.idcharSpTypeSpectral typesrc.spTypecharONamesOther names (G1)meta.idcharJ/MNRAS/394/795/variablesVariables }recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintVTypeVariable type (table2 only)meta.code;src.varchar[WMF2009]Running number unique to the star within our system, [WMF2009] F NNNNN in Simbadmeta.id;meta.mainintPer? Period (table2 only)dtime.periodintnullableJmagJ magnitudemagphot.mag;em.IR.JfloatJamp? Amplitude in J bandmagphot.mag;em.IR.JfloatnullableHmagH magnitudemagphot.mag;em.IR.HfloatHamp? Amplitude in H bandmagphot.mag;em.IR.HfloatnullableKsmagKs magnitudemagphot.mag;em.IR.KfloatKamp? Amplitude in Ks bandmagphot.mag;em.IR.Kfloatnullablembol? Bolometric magnitude (table2 only)magphot.mag.bolfloatnullableMbol? Absolute bolometric magnitude (table2 only)magphys.magAbs.bolfloatnullableJ-Ks? J-Ks colour index (table3 only)magphot.color;em.IR.J;em.IR.KfloatnullableS[CM- ] Spectral type (Carbon or M-type)src.spTypechar2MASS2MASS name (HHMMSSss+DDMMSSs)meta.idcharONamesOther names (G1)meta.idchar_RAPosition, derived from 2MASS name (right ascension part)degpos.eq.ra;meta.main_DEPosition, derived from 2MASS name (declination part)degpos.eq.dec;meta.main