J/A+A/622/A38ivo://CDS.VizieR/J/A+A/622/A38doi:10.26093/cds/vizier.36220038CDSAzatyan N.M.2019-06-27T07:07:41Z2019-06-05T11:46:34ZCDS support team

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

cds-question@unistra.frinfrared-sourcespre-main-sequence-starsinfrared-photometryAims. We report the investigation results of the structure and content of a molecular cloud surrounding the source IRAS 05168+3634 (also known as Mol 9). Methods. We present a photometric analysis using the data of J, H, K UKIDSS, [3.6], [4.5]{mu}m Spitzer-IRAC and 3.4, 4.6, 12, 22{mu}m WISE databases. A multi-color criteria was used to identify the candidates of young stellar objects (YSOs) in the molecular cloud; in addition to IRAS 05168+3634, there are four IRAS sources embedded in the same molecular cloud. Color-magnitude diagrams and the K luminosity function (KLF) were used to determine the basic parameters of stellar objects (spectral classes, masses, ages). To study the YSOs with longer wavelength photometry the radiative transfer models were used. Results. Based on color-color and color-magnitude diagrams, we identified a rich population of embedded YSO candidates with infrared excess (Class 0/I and Class II) and their characteristics in a quite large molecular cloud located in a region of 24 arcmin radius. The molecular cloud includes 240 candidates of YSOs within the radii of subregions around five IRAS sources. The local distribution of identified YSOs in the molecular cloud frequently shows elongation and subclustering. The observed young subregions and parental molecular cloud morphologies are similar, especially when only the youngest Class I/0 sources are considered. The color-magnitude diagrams of the subregions suggest a very young stellar population. We construct the KLF of the subregions except for the IRAS 05162+3639 region and it shows unusually low values for {alpha} slope: 0.12-0.21. According to the values of the slopes of the KLFs, the age of the subregions can be estimated at 0.1-3Myr. The spectral energy distributions (SEDs) are constructed for 45 Class I and 75 Class II evolutionary stage YSOs and the received parameters of these YSOs are well correlated with the results obtained by other methods. According to the results of SED fitting tool, the sources IRAS 05184+3635, IRAS 05177+3636, and IRAS 05162+3639 can be classified as Class I evolutionary stage objects. IRAS 05168+3634 and IRAS 05156+3643 can be classified as flat-spectrum objects.2019A&A...622A..38Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/622/A38CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/316 : UKIDSS-DR6 Galactic Plane Survey (Lucas+ 2012)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/622/A38https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/622/A38http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/622/A38https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/622/A38https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/622/A38http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/622/A38GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/622/A38/tablea1 (Members of subregions with NIR and MIR photometry)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/622/A38/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/622/A38/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/622/A38/tablea1?GETtext/xml+votable180.050000true80.422291736.646250.0055555555555555566/1307 13293.972892068905477e-22 1.7798557115773645e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/622/A38?format=asciiInfrareddefaultJ/A+A/622/A38/tablea3Parameters derived from Robitaille et al. (2007ApJS..169..328R) models SED fitting for two distancesRegionRegionmeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDID number of sub-regions members taken from Table A.1,meta.idintAv1.88? Interstellar extinction for distance=1.88kpc (1)magphys.absorptionfloatnullablee_Av1.88? rms uncertainty on Av1.88 (1)magstat.errorfloatnullableAv6.1Interstellar extinction for distance=6.1kpc (1)magphys.absorptionfloate_Av6.1rms uncertainty on Av6.1 (1)magstat.errorfloatlogAge1.88? Stellar age for distance=1.88kpc (1)log(yr)time.agefloatnullablee_logAge1.88? rms uncertainty on logAge1.88 (1)log(yr)stat.errorfloatnullablelogAge6.1Stellar age for distance=6.1kpc (1)log(yr)time.agefloate_logAge6.1rms uncertainty on logAge6.1 (1)log(yr)stat.errorfloatMass1.88? Stellar mass for distance=1.88kpc (1)solMassphys.massfloatnullablee_Mass1.88? rms uncertainty on Mass1.88 (1)solMassstat.errorfloatnullableMass6.1Stellar mass for distance=6.1kpc (1)solMassphys.massfloate_Mass6.1rms uncertainty on Mass6.1 (1)solMassstat.errorfloatlogT1.88? Temperature for distance=1.88kpc (1)log(K)phys.temperaturefloatnullablee_logT1.88? rms uncertainty on logT1.88 (1)log(K)stat.errorfloatnullablelogT6.1Temperature for distance=6.1kpc (1)log(K)phys.temperaturefloate_logT6.1rms uncertainty on logT6.10 (1)log(K)stat.errorfloatMdotE1.88? Envelope accretion rate for distance=1.88kpc (1)log(solMass.yr**-1)phys.mass.lossfloatnullablee_MdotE1.88? rms uncertainty on MdotE1.88 (1)log(solMass.yr**-1)stat.errorfloatnullableMdotE6.1Envelope accretion rate for distance=6.1kpc (1)log(solMass.yr**-1)phys.mass.lossfloate_MdotE6.1rms uncertainty on MdotE6.1 (1)log(solMass.yr**-1)stat.errorfloatMdotD1.88? Disk accretion rate for distance=1.88kpc (1)log(solMass.yr**-1)phys.mass.lossfloatnullablee_MdotD1.88? rms uncertainty on MdotD1.88 (1)log(solMass.yr**-1)stat.errorfloatnullableMdotD6.1Disk accretion rate for distance=6.1kpc (1)log(solMass.yr**-1)phys.mass.lossfloate_MdotD6.1rms uncertainty on MdotD6.1 (1)log(solMass.yr**-1)stat.errorfloatLTotal1.88? Total luminosity for distance=1.88kpc (1)log(solLum)phys.luminosityfloatnullablee_LTotal1.88? rms uncertainty on LTotal1.88 (1)log(solLum)stat.errorfloatnullableLTotal6.1Total luminosity for distance=6.1kpc (1)log(solLum)phys.luminosityfloate_LTotal6.1rms uncertainty on LTotal6.1 (1)log(solLum)stat.errorfloatNfit1.88? Number of fitting models for distance=1.88kpcmeta.numberintnullableNfit6.1Number of fitting models for distance=6.1kpcmeta.numberintNdataNumber of input fluxesmeta.numberintJ/A+A/622/A38/tablea1Members of subregions with NIR and MIR photometryRegionRegionmeta.notecharKmagK magnitudemagphot.mag;em.IR.KfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMoreindicates FIR photometry and/or model arametersmeta.ref.urlcharID[1/240] ID number in final list of sub-region membersmeta.idintprimaryn_ID[ab] Note on ID (1)meta.notecharRAJ2000Right ascension (J2000) from UKIDSS surveypos.eq.ra;meta.mainDEJ2000Declination (J2000) from UKIDSS surveypos.eq.dec;meta.mainJmag? J magnitudemagphot.mag;em.IR.Jfloatnullablee_Jmag? rms uncertainty on Jmagmagstat.error;phot.mag;em.IR.JfloatnullableHmag? H magnitudemagphot.mag;em.IR.Hfloatnullablee_Hmag? rms uncertainty on Hmagmagstat.error;phot.mag;em.IR.Hfloatnullablee_Kmagrms uncertainty on Kmagmagstat.error;phot.mag;em.IR.Kfloat[3.6]mag? IRAC 3.6um magnitudemagphot.mag;em.IR.3-4umfloatnullablee_[3.6]mag? rms uncertainty on [3.6]magmagstat.error;phot.magfloatnullable[4.5]mag? IRAC 4.5um magnitudemagphot.mag;em.IR.4-8umfloatnullablee_[4.5]mag? rms uncertainty on [4.5]magmagstat.error;phot.magfloatnullableW1mag? WISE W1 magnitudemagphot.mag;em.IR.3-4umfloatnullablee_W1mag? rms uncertainty on W1magmagstat.error;phot.magfloatnullableW2mag? WISE W2 magnitudemagphot.mag;em.IR.4-8umfloatnullablee_W2mag? rms uncertainty on W2magmagstat.error;phot.magfloatnullableW3mag? WISE W3 magnitudemagphot.flux.density;em.IR.8-15umfloatnullablee_W3mag? rms uncertainty on W3magmagstat.error;phot.magfloatnullableW4mag? WISE W4 magnitudemagphot.flux.density;em.IR.15-30umfloatnullablee_W4mag? rms uncertainty on W4magmagstat.error;phot.magfloatnullableClassFinal classification of YSOs according to color-color diagramssrc.classcharJ/A+A/622/A38/tablea2Members of subregions with FIR photometryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDNumber of sub-regions members taken from Table A.1meta.idintNameNames of IRAS and MSX sourcemeta.idcharF8.28? MSX 8.28um measured fluxmJyphot.flux.density;em.IR.8-15umintnullablee_F8.28? rms uncertainty on F8.28mJystat.errorintnullableF12.13? MSX 12.13um measured fluxmJyphot.flux.density;em.IR.8-15umintnullablee_F12.13? rms uncertainty on F12.13mJystat.errorintnullableF14.65? MSX 14.65um measured fluxmJyphot.flux.density;em.IR.8-15umintnullablee_F14.65? rms uncertainty on F14.65mJystat.errorintnullableF21.3? MSX 21.3um measured fluxmJyphot.flux.density;em.IR.15-30umintnullablee_F21.3? rms uncertainty on F21.3mJystat.errorintnullableF12? IRAS 12um measured fluxmJyphot.flux.density;em.IR.8-15umintnullablee_F12? rms uncertainty on F12mJystat.errorintnullableF25? IRAS 25um measured fluxmJyphot.flux.density;em.IR.15-30umintnullablee_F25? rms uncertainty on F25mJystat.errorintnullableF60? IRAS 60um measured fluxmJyphot.flux.density;em.IR.30-60umintnullablee_F60? rms uncertainty on F60mJystat.errorintnullableF100? IRAS 100um measured fluxmJyphot.flux.density;em.IR.60-100umintnullablee_F100? rms uncertainty on F100mJystat.errorintnullableF70? Herschel PACS 70um measured fluxmJyphot.flux.density;em.IR.30-60umintnullablee_F70? rms uncertainty on F70mJystat.errorfloatnullablen_e_F70[a] Note on e_F70 (1)meta.notecharF160? Herschel PACS 160um measured fluxmJyphot.flux.density;em.mm.1500-3000GHzintnullablee_F160? rms uncertainty on F160mJystat.errordoublenullablen_e_F160[b] Note on e_F160 (1)meta.notecharF250? Herschel SPIRE 250um measured fluxmJyphot.flux.density;em.mm.750-1500GHzintnullablee_F250? rms uncertainty on F250mJystat.errorintnullableF350? Herschel SPIRE 350um measured fluxmJyphot.flux.density;em.mm.750-1500GHzfloatnullablee_F350? rms uncertainty on F350mJystat.errorintnullableF500? Herschel SPIRE 500um measured fluxmJyphot.flux.density;em.mm.400-750GHzintnullablee_F500? rms uncertainty on F500mJystat.errorintnullable