J/A+A/400/903ivo://CDS.VizieR/J/A+A/400/903doi:10.26093/cds/vizier.34000903CDSJiang B.W.Omont A.Ganesh S.Simon G.Schuller F.2008-10-16T09:05:28Z2008-10-16T09:01:47ZCDS support team

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

cds-question@unistra.frinfrared-sourcesastronomical-object-identificationinfrared-photometryA 0.35x0.29{deg} field centered at l=-18.63{deg}, b=0.35{deg} was observed during the ISOGAL survey by ISOCAM imaging at 7{mu}m and 15{mu}m. 648 objects were detected and their brightness are measured. By combining with the DENIS data in the near-infrared J and Ks bands, one derives the extinction at 7{mu}m through A_Ks_-A_7_=0.35(A_J_-A_Ks_) which yields A_7_/Av~0.03 from the near-IR extinction values of van de Hulst-Glass (Glass, 1999MNRAS.308..127G). The extinction structure along the line of sight is then determined from the values of J-Ks or Ks-[7] of the ISOGAL sources identified as RGB or early AGB stars with mild mass-loss. The distribution of Av ranges from 0 to ~45 and it reflects the concentration of the extinction in the spiral arms. Based on their locations in color-magnitude diagrams and a few cross-identifications with IRAS and MSX sources, the nature of objects is discussed in comparison with the case of a low extinction field in Baade's Window. Most of the objects are either AGB stars with moderate mass loss rate or luminous RGB stars. Some of them may be AGB stars with high mass loss rate. In addition, a few young stellar objects (YSOs) are present.2003A&A...400..903Jhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/400/903CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/98 : MSX Infrared Astrometric Catalog (Egan+ 1996)V/107 : MSX5C Infrared Point Source Catalog (Egan+ 1999)II/125 : IRAS catalogue of Point Sources, Version 2.0 (IPAC 1986)B/denis : The DENIS database (Epchtein+, 1999)http://www-isogal.iap.fr : ISOGAL Home Pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/400/903https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/400/903http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/400/903https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/400/903https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/400/903http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/400/903GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/400/903/table5 (ISOGAL sources cross-identified with the MSX PSC sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/400/903/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/400/903/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/400/903/table5?GETtext/xml+votable180.050000true252.385-43.97060.0055555555555555566/42379https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/400/903?format=asciiInfrareddefaultJ/A+A/400/903/table5ISOGAL sources cross-identified with the MSX PSC sourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequence number in this ISOGAL fieldmeta.id;obs.fieldintISOGALISOGAL name in the ISOGAL PSCmeta.id;meta.maincharGLON[-19/-17] ISOGAL Galactic longitude (J2000)degpos.galactic.lonGLATISOGAL Galactic latitude (J2000)degpos.galactic.latdoubleImag? Magnitude in DENIS I bandmagphot.mag;em.opt.IfloatnullableJmag? Magnitude in DENIS J bandmagphot.mag;em.IR.JfloatnullableKsmag? Magnitude in DENIS Ks bandmagphot.mag;em.IR.Kfloatnullable[7]magMagnitude in the ISOGAL LW2 bandmagphot.flux.density;em.IR.4-8umfloat[15]magMagnitude in the ISOGAL LW3 bandmagphot.flux.density;em.IR.8-15umfloatMSXMSX PSC name (Cat. <V/107>)meta.id.crosscharRAJ2000MSX PSC Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000MSX PSC Declination (J2000)degpos.eq.dec;meta.mainSMSXAFlux density in the MSX A band (6.8-10.8{mu}m)Jyphot.flux.density;em.IR.4-8umfloatSMSXCFlux density in the MSX C band (11.1-13.2{mu})Jyphot.flux.density;em.IR.8-15umfloatSMSXDFlux density in the MSX D band (13.5-15.9{mu}m)Jyphot.flux.density;em.IR.8-15umfloatSMSXEFlux density in the MSX E band (18-25{mu}m)Jyphot.flux.density;em.IR.15-30umfloatIRASmeta.ref.urlchar