J/AJ/123/3216ivo://CDS.VizieR/J/AJ/123/3216doi:10.26093/cds/vizier.51233216CDSSharpee B.Stark M.Pritzl B.Smith H.Silbermann N.Wilhelm R.,Walker A.2023-04-06T16:50:49Z2002-08-25T21:25:30ZCDS support team

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

cds-question@unistra.frmagellanic-cloudsvariable-starsvisible-astronomybroad-band-photometryB and V photometry has been obtained for variable stars in the northeast arm of the Small Magellanic Cloud (SMC). Periods and light curves have been determined for 237 periodic variables, including 201 Cepheids, 68 of which are newly discovered. Fundamental-mode Cepheids and first-overtone mode Cepheids are generally well separated in the BV color-magnitude diagram, with the latter having bluer mean colors than the former. The Cepheid period-color relationship for this outlying SMC field is indistinguishable from that seen in more centrally located SMC fields and is bluer than theoretical predictions. The red edge to the populated portion of the instability strip shifts to bluer colors for fainter Cepheids. There is support from our sample for a previously reported steepening in the slope of the period-luminosity relation for fundamental-mode Cepheids near a period of 2 days. The Cepheids of the northeast arm may be closer to us than are those of the main body of the SMC, but the difference is smaller than or equal to about 4kpc, comparable to the tidal radius of the SMC.2002AJ....123.3216Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/123/3216CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/97 : Updated 3rd Cat Variable Stars in Globular Clusters (Clement+ 1997)J/AcA/49/437 : BVI photometry of OGLE SMC Cepheids (Udalski+, 1999)J/AcA/49/543 : OGLE LMC + SMC Cepheids VI photometry (Pietrzynski+, 1999)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/123/3216https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/123/3216http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/123/3216https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/123/3216https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/123/3216http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/123/3216GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/123/3216/table2 (Coordinates of New Variables)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/123/3216/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/123/3216/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/123/3216/table2?GETtext/xml+votable180.050000true14.285833-71.6683330.005555555555555556Cone search capability for table J/AJ/123/3216/table3 (Photometry of local standard stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/123/3216/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/123/3216/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/123/3216/table3?GETtext/xml+votable180.050000true16.499583-71.4363890.005555555555555556Cone search capability for table J/AJ/123/3216/table6 (Attributes of Observed Variables)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/123/3216/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/123/3216/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/123/3216/table6?GETtext/xml+votable180.050000true16.0418333-70.95677780.0055555555555555566/33306 33317 33319 33328 33330-33331https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/123/3216?format=asciiOpticaldefaultJ/AJ/123/3216/table2Coordinates of New VariablesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[SSP2002]The new variable SSP numbermeta.id;meta.mainintRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainJ/AJ/123/3216/table3Photometry of local standard starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[SSP2002][A-U] Identification lettermeta.id;meta.maincharRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainVmagV magnitudemagphot.mag;em.opt.VfloatB-VB-V colour indexmagphot.color;em.opt.B;em.opt.VfloatU-B? U-B colour indexmagphot.color;em.opt.U;em.opt.BfloatnullableV-IcV-Ic colour indexmagphot.color;em.opt.V;em.opt.IfloatJ/AJ/123/3216/table5Photometry of Individual Variable StarsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarVariable identifier (G1)meta.id;meta.maincharField[1-4] Field from which measurement was takenobs.fieldintBand[BV] Band of Observationinstr.bandpasscharHJDThe Heliocentric Julian date of the observationdtime.epochdoublemagThe Band magnitudemagphot.magfloate_magThe 1{sigma} error in magmagstat.errorfloatJ/AJ/123/3216/table6Attributes of Observed VariablesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarVariable identifier (G1)meta.id;meta.maincharprimaryplotplot the light curve from table5 datameta.refcharTypeVariable type (2)meta.code;src.varcharPerPeriod (3)dtime.perioddoubleBmag? The luminosity-weighted mean B band magnitudemagphot.mag;em.opt.BfloatnullableVmag? The luminosity-weighted mean V band magnitudemagphot.mag;em.opt.Vfloatnullable(B-V)L? The luminosity-weighted mean (B-V) colormagphot.color;em.opt.B;em.opt.Vfloatnullable(B-V)M? The magnitude-weighted mean (B-V) colormagphot.color;em.opt.B;em.opt.VfloatnullableQualQuality code (4)meta.code.qualcharNotesAdditional notes (5)meta.notecharRAJ2000Right ascension (J2000.0) (6)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0) (6)pos.eq.dec;meta.main