J/ApJ/679/71ivo://CDS.VizieR/J/ApJ/679/71doi:10.26093/cds/vizier.16790071CDSFreedman W.L.Madore B.F.Rigby J.Persson S.E.Sturch L.2017-12-21T15:26:30Z2010-10-07T08:01:42ZCDS support team

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

cds-question@unistra.frvariable-starsmagellanic-cloudsinfrared-photometryWe present the first mid-infrared period-luminosity (PL) relations for Large Magellanic Cloud (LMC) Cepheids. Single-epoch observations of 70 Cepheids were extracted from Spitzer IRAC observations at 3.6, 4.5, 5.8 and 8.0um, serendipitously obtained during the SAGE (Surveying the Agents of a Galaxy's Evolution) imaging survey of the LMC. All four mid-infrared PL relations have nearly identical slopes over the period range 6-88 days, with a small scatter of only +/-0.16mag independent of period for all four of these wavelengths. We emphasize that differential reddening is not contributing significantly to the observed scatter, given the nearly 2 orders of magnitude reduced sensitivity of the mid-IR to extinction compared to the optical. Future observations, filling in the light curves for these Cepheids, should noticeably reduce the residual scatter. These attributes alone suggest that mid-infrared PL relations will provide a practical means of significantly improving the accuracy of Cepheid distances to nearby galaxies.2008ApJ...679...71Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/679/71CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/303/137 : EROS Variables: Cepheids in the bar of LMC (Beaulieu+ 1995)J/AJ/128/2239 : JHKs photometry of 92 LMC Cepheids (Persson+, 2004)J/AJ/132/2268 : SAGE calibration stars (Meixner+, 2006)J/A+A/462/599 : JHKs photometry of LMC cluster Cepheids (Testa+, 2007)J/A+A/476/73 : Calibration of Cepheid Period/Luminosity relation (Fouque+,https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/679/71https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/679/71http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/679/71https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/679/71https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/679/71http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/679/71GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/679/71/table1 (Mid-infrared Cepheid photometry)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/679/71/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/679/71/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/679/71/table1?GETtext/xml+votable180.050000true73.7762083-67.47583330.0055555555555555565/8275 8280 6/33051 33052 33053 33054 33073 33075 33076 33077 33078 33088 33091 33092 33094 33095 33098 33106 33107 33108 33110 33112 33113 33124 33126 331272.0616683193919197e-20 6.185923063528282e-20https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/679/71?format=asciiInfrareddefaultJ/ApJ/679/71/table1Mid-infrared Cepheid photometryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameCepheid name (HV NNNNN)meta.id;meta.maincharLogPLog of the periodlog(d)time.periodfloat3.6magSpitzer/IRAC 3.6 micron band magnitudemagphot.mag;em.IR.3-4umfloate_3.6magError in 3.6magmagstat.errorfloat4.5magSpitzer/IRAC 4.5 micron band magnitudemagphot.mag;em.IR.4-8umfloate_4.5magError in 4.5magmagstat.errorfloat5.8magSpitzer/IRAC 5.8 micron band magnitudemagphot.flux.density;em.IR.4-8umfloate_5.8magError in 5.8magmagstat.errorfloat8.0magSpitzer/IRAC 8.0 micron band magnitudemagphot.flux.density;em.IR.8-15umfloate_8.0magError in 8.0magmagstat.errorfloatPersson04Display the data from Persson et al., 2004, Cat J/AJ/128/2239meta.ref.urlcharSimbadSimbad column added by the CDSchar_RAPositions from Simbad (right ascension part)degpos.eq.ra;meta.main_DEPositions from Simbad (declination part)degpos.eq.dec;meta.main