J/ApJS/154/623ivo://CDS.VizieR/J/ApJS/154/623doi:10.26093/cds/vizier.21540623CDSMould J.Saha A.Hughes S.2006-02-02T12:35:34Z2006-02-02T13:35:22ZCDS support team

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

cds-question@unistra.frvariable-starsvisible-astronomykron-cousins-photometryinfrared-photometryA significant fraction of the disk of M31 has been surveyed for long-period variable stars. We report the results, including near-infrared photometry of almost 2000 variables, and light curves in the i band. The period-luminosity relation suggests that most of the variables are asymptotic giant branch stars, and their luminosity function can be understood in terms of mass-loss rates, which increase with increasing luminosity on the giant branch, and star formation rates, which were a few times higher a billion years ago in M31 than they are today. We see some supergiant long-period variables, but somewhat fewer than expected based on their frequency in M33, and confined to the ring of star formation in M31 seen in the IRAS and 2MASS surveys.2004ApJS..154..623Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/154/623CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/402/113 : (RI)c photometry of variables in M31 (Joshi+, 2003)J/A+A/421/509 : AGAPE catalogue of M31 variables (Ansari+, 2004)J/MNRAS/351/1071 : POINT-AGAPE Survey. M31 variables (An+, 2004)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/154/623https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/154/623http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/154/623https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/154/623https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/154/623http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/154/623GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/154/623/table2 (M31 LPVs - Photometry)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/154/623/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/154/623/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/154/623/table2?GETtext/xml+votable180.050000true10.1187640.286140.0055555555555555566/2622 2623 2666 2708 2709 2752https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/154/623?format=asciiOpticalInfrareddefaultJ/ApJS/154/623/table2M31 LPVs - PhotometryPerPerioddintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[MSH2004]Identification number (1)intRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainf_Per[*] Flag on Per (2)charimagThe i band magnitude (approximate calibration on to the Cousins system)magfloatJmag? The J band magnitudemagfloatnullablee_Jmag? Error in JmagmagfloatnullableHmag? The H band magnitudemagfloatnullablee_Hmag? Error in HmagmagfloatnullableKmag? The K band magnitudemagfloatnullablee_Kmag? Error in Kmagmagfloatnullable