J/A+A/463/175ivo://CDS.VizieR/J/A+A/463/175doi:10.26093/cds/vizier.34630175CDSVig S.Ghosh S.K.Ojha D.K.Verma R.P.2007-06-17T08:02:42Z2007-06-17T08:00:13ZCDS support team

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

cds-question@unistra.frinfrared-sourcesyoung-stellar-objectsinfrared-photometryastronomical-object-identificationWe have carried out an infrared study of the southern Galactic massive star-forming region associated with IRAS 14416-5937. This star-forming region has been mapped simultaneously in two far infrared bands at ~150 & 210 micron using the TIFR 1-m balloon borne telescope with ~1' angular resolution. We have used the 2MASS JHKs data as well as the GLIMPSE-Spitzer data of this region to study the stellar populations of the embedded young cluster. This region comprises of two sources designated as A and B, separated by ~2pc. The spectrum of a region located close to the source A obtained using the Long Wavelength Spectrometer (LWS) on-board the Infrared Space Observatory (ISO) is presented. Emission from warm dust and the unidentified infrared bands (UIBs) is estimated using the mid-infrared data from the MSX survey. The spatial distribution of the temperature of cool dust and optical depth at 200 micron have been obtained taking advantage of the similar beams in the two TIFR bands. A number of atomic fine structure lines have been detected in the ISO-LWS spectrum, which have been used to estimate the electron density and the effective temperature of the ionising radiation in this region. From the near and mid infrared images, we identify a dust lane due north-west direction of the source A. The dust lane is populated by Class I type sources. Class II type sources are found further along the dust lane as well as below it. Self consistent radiative transfer models of the two sources (A and B) are in good agreement with the observed spectral energy distributions. The spatial distribution of young stellar objects in and around the dust lane suggests that active star formation is taking place along the dust lane and is possibly triggered by the expanding HII regions of A and B.2007A&A...463..175Vhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/463/175CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)http://www.astro.wisc.edu/glimpse/ : GLIMPSE Home Pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/463/175https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/463/175http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/463/175https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/463/175https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/463/175http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/463/175GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/463/175/irac (Details of Young Stellar Objects (YSOs) selected from the Spitzer-GLIMPSE survey based on IRAC ([3.6]-[4.5) vs. [5.8]-[8.0]) colour-colour diagram)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/463/175/irac?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/463/175/irac?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/463/175/irac?GETtext/xml+votable180.050000true221.19741694-59.874476940.005555555555555556Cone search capability for table J/A+A/463/175/2mass (Details of infrared excess sources (YSOs) selected from the 2MASS based on JHKs (J-H vs. H-Ks) colour-colour diagram)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/463/175/2mass?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/463/175/2mass?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/463/175/2mass?GETtext/xml+votable180.050000true221.19901-59.883911110.0055555555555555566/41766 41772https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/463/175?format=asciiInfrareddefaultJ/A+A/463/175/iracDetails of Young Stellar Objects (YSOs) selected from the Spitzer-GLIMPSE survey based on IRAC ([3.6]-[4.5) vs. [5.8]-[8.0]) colour-colour diagrame_Jmag? Error in Jmag (G1)magstat.error;phot.mag;em.IR.JfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[3.6]magMagnitude at 3.6 micron IRAC bandmagphot.mag;em.IR.3-4umfloate_[3.6]magError in [3.6]magmagstat.error;phot.magfloat[4.5]magMagnitude at 4.5 micron IRAC bandmagphot.mag;em.IR.4-8umfloate_[4.5]magError in [4.5]magmagstat.error;phot.magfloat[5.8]magMagnitude at 5.8 micron IRAC bandmagphot.flux.density;em.IR.4-8umfloate_[5.8]magError in [5.8]magmagstat.error;phot.magfloat[8.0]magMagnitude at 8.0 micron IRAC bandmagphot.mag;em.IR.8-15umfloate_[8.0]magError in [8.0]magmagstat.error;phot.magfloat2MASS2MASS designationmeta.idcharJmag? Magnitude at J band (G1)magphot.mag;em.IR.JfloatnullableHmag? Magnitude at H band (G1)magphot.mag;em.IR.Hfloatnullablee_Hmag? Error in Hmag (G1)magstat.error;phot.mag;em.IR.HfloatnullableKsmag? Magnitude at Ks band (G1)magphot.mag;em.IR.Kfloatnullablee_Ksmag? Error in Ksmag (G1)magstat.error;phot.mag;em.IR.KfloatnullableClassClass I, Class I/II or Class II YSOmeta.code.classchar2MdataDisplay the data from 2MASS (Cat. II/246)meta.ref.urlcharGLIMPSESpitzer-GLIMPSE designationmeta.id;meta.maincharRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainJ/A+A/463/175/2massDetails of infrared excess sources (YSOs) selected from the 2MASS based on JHKs (J-H vs. H-Ks) colour-colour diagramrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJmagMagnitude at J bandmagphot.mag;em.IR.Jfloate_JmagError in Jmagmagstat.error;phot.mag;em.IR.JfloatHmagMagnitude at H bandmagphot.mag;em.IR.Hfloate_HmagError in Hmagmagstat.error;phot.mag;em.IR.HfloatKsmagMagnitude at Ks bandmagphot.mag;em.IR.Kfloate_KsmagError in Ksmagmagstat.error;phot.mag;em.IR.KfloatGLIMPSESpitzer-GLIMPSE designationmeta.idchar[3.6]mag? Magnitude at 3.6 micron IRAC band (G1)magphot.mag;em.IR.3-4umfloatnullablee_[3.6]mag? Error in [3.6]mag (G1)magstat.error;phot.magfloatnullable[4.5]mag? Magnitude at 4.5 micron IRAC band (G1)magphot.mag;em.IR.4-8umfloatnullablee_[4.5]mag? Error in [4.5]mag (G1)magstat.error;phot.magfloatnullable[5.8]mag? Magnitude at 5.8 micron IRAC band (G1)magphot.flux.density;em.IR.4-8umfloatnullablee_[5.8]mag? Error in [5.8]mag (G1)magstat.error;phot.magfloatnullable[8.0]mag? Magnitude at 8.0 micron IRAC band (G1)magphot.mag;em.IR.8-15umfloatnullablee_[8.0]mag? Error in [8.0]mag (G1)magstat.error;phot.magfloatnullable2MdataDisplay the data from 2MASS (Cat. II/246)meta.ref.urlchar2MASS2MASS designationmeta.id;meta.maincharRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.main