J/AJ/134/2099ivo://CDS.VizieR/J/AJ/134/2099doi:10.26093/cds/vizier.51342099CDSRobitaille T.P.Cohen M.Whitney B.A.Meade M.Babler B.,Indebetouw R.Churchwell E.2010-04-21T14:06:29Z2010-03-29T11:47:39ZCDS support team

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

cds-question@unistra.frsurveysinfrared-sourcesvariable-starsinfrared-photometryWe present a list of 552 sources with suspected variability, based on a comparison of mid-infrared photometry from the GLIMPSE I and Midcourse Space Experiment (MSX) surveys, which were carried out nearly a decade apart. We were careful to address issues such as the difference in resolution and sensitivity between the two surveys, as well as the differences in the spectral responses of the instruments. We selected only sources where the IRAC 8.0um and MSX 8.28um fluxes differ by more than a factor of 2, in order to minimize contamination from sources where the difference in fluxes at 8um is due to a strong 10um silicate feature. We present a subset of 40 sources for which additional evidence suggests variability, using 2MASS and MIPSGAL data. Based on a comparison with the variability flags in the IRAS and MSX point-source catalogs we estimate that at least a quarter of the 552 sources and at least half of the 40 sources in the subset are truly variable. In addition, we tentatively confirm the variability of one source using multiepoch IRAS LRS spectra. We suggest that most of the sources in our list are likely to be asymptotic giant branch stars.2007AJ....134.2099Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/134/2099CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/114 : MSX6C Infrared Point Source Catalog (Egan+ 2003)VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/134/2099https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/134/2099http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/134/2099https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/134/2099https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/134/2099http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/134/2099GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/134/2099/table2 (The sample of 552 sources with apparent variability at 8 microns)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/134/2099/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/134/2099/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/134/2099/table2?GETtext/xml+votable180.050000true271.8573-20.112890.0055555555555555565/7274 7275 7376 7377 7383 7578 7579 7605 7673 10442 10543 10553 10556 10595 10624 6/12968 12970 12971 12986 14337 14352 14353 14357 14359 14364 14412 29091 29094 29112 29114 29115 29116 29118 29119 29163 29456 29457 29460 29461 29463 29513 29516 29517 29520 29522 29526 29528 29529 29531 30218 30219 30222 30223 30241 30244 30245 30246 30256 30257 30259 30262 30263 30265 30268 30269 30306 30330 30331 30401 30404 30405 30416 30417 30428 30429 30594 30595 30599 30600 30605 30606 30607 30616 30617 30619 30640 30641 30647 30688 30691 30706 30713 30715 30716 30717 30719 37908 41598 41658 41660 41661 41671 41675 41676 41677 41681 41682 41683 41684 41687 41688 41689 41763 41765 41766 41767 41773 41776 41777 41779 41780 41781 41782 41800 41802 41803 41804 41806 41807 41810 41811 41813 41814 41815 41816 41824 42155 42158 42159 42167 42168 42170 42171 42203 42206 42207 42210 42211 42216 42217 42218 42220 42228 42230 42375 42377 42378 42379 42386 42387 42390 42391 42392 42393 42395 42396 42397 42398 42400 42401 42434 42435 42438 42439 42440 42441 42443 42444 42445 42500 42501 42512 43013 43015 43020 430216.772611666688002e-21 6.185923063528282e-20https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/134/2099?format=asciiInfrareddefaultJ/AJ/134/2099/table2The sample of 552 sources with apparent variability at 8 micronsRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainFJ? 2MASS J band flux density (1)mJyphot.flux;em.IR.JfloatnullableFH? 2MASS H band flux density (1)mJyphot.flux.density;em.IR.HfloatnullableFKs? 2MASS K_s_ band flux density (1)mJyphot.mag;em.IR.KfloatnullableF3.6? Spitzer/IRAC 3.6 micron band flux density (1)mJyphot.mag;em.IR.3-4umfloatnullableF4.5? Spitzer/IRAC 4.5 micron band flux density (1)mJyphot.mag;em.IR.4-8umfloatnullableF5.8Spitzer/IRAC 5.8 micron band flux density (1)mJyphot.flux.density;em.IR.4-8umfloatF8.0Spitzer/IRAC 8.0 micron band flux density (1)mJyphot.flux.density;em.IR.8-15umfloatF8.3MSX 8.28 micron band flux density (1)mJyphot.flux.density;em.IR.8-15umfloatF12? MSX 12.13 micron band flux density (1)mJyphot.flux.density;em.IR.8-15umfloatnullableF15? MSX 14.65 micron band flux density (1)mJyphot.flux.density;em.IR.8-15umfloatnullableF21? MSX 21.3 micron band flux density (1)mJyphot.flux.density;em.IR.15-30umfloatnullableF24? Spitzer/MIPS 24 micron band flux density (1)mJyphot.flux.density;em.IR.15-30umfloatnullableMvar[0/4] Sum of MSX point source catalog variability flags in all bands (2)meta.code;src.varintIvar? IRAS variability likelihood%stat.likelihoodintnullableMSXMSX source name (GLLL.llll+BB.bbbb)meta.id;meta.maincharSSTGLMCGLIMPSE source name (GLLL.llll+BB.bbbb)meta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint