J/ApJ/717/1067ivo://CDS.VizieR/J/ApJ/717/1067doi:10.26093/cds/vizier.17171067CDSChoudhury R.Mookerjea B.Bhatt H.C.2017-09-19T14:21:10Z2012-06-25T11:44:08ZCDS support team

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

cds-question@unistra.frinfrared-photometryvisible-astronomybroad-band-photometryyoung-stellar-objectsstellar-spectral-typesWe have investigated the young stellar population in and around SFO 38, one of the massive globules located in the northern part of the Galactic HII region IC 1396, using the Spitzer IRAC and MIPS observations (3.6-24um), and followed up with ground-based optical photometric and spectroscopic observations. Based on the IRAC and MIPS colors and H{alpha} emission, we identify ~45 young stellar objects (Classes 0/I/II) and 13 probable pre-main-sequence candidates. We derive the spectral types (mostly K- and M-type stars), effective temperatures, and individual extinction of the relatively bright and optically visible Class II objects. Using the width of the H{alpha} emission line measured at 10% peak intensity, we derive the mass accretion rates of individual objects to be between 10^-10^ and 10^-8^M_{sun}_/yr.2010ApJ...717.1067Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/717/1067CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/311 : WISE All-Sky Data Release (Cutri+ 2012)II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)J/MNRAS/415/103 : IPHAS T Tauri candidates in IC 1396 (Barentsen+, 2011)J/A+A/504/97 : JHKs photometry of IC 1396N (Beltran+, 2009)J/MNRAS/396/964 : T Tauri in and around bright-rimmed clouds (Chauhan+, 2009)J/AJ/135/2323 : H{alpha} stars and HH objects near BRCs (Ikeda+, 2008)J/ApJ/654/316 : X-ray sources in IC 1396N (Getman+, 2007)J/AJ/123/2597 : H{alpha} stars and HH objects near BRCs (Ogura+, 2002)J/A+A/309/581 : CO observations of clouds in IC 1396 region (Weikard +,1996)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/717/1067https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/717/1067http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/717/1067https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/717/1067https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/717/1067http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/717/1067GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/717/1067/table1 (*Results of near- and mid-IR photometry of the mid-infrared sources in SFO 38)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/717/1067/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/717/1067/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/717/1067/table1?GETtext/xml+votable180.050000true325.104041758.26958330.0055555555555555566/154796.772611666688002e-21 1.7003137259100215e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/717/1067?format=asciiOpticalInfrareddefaultJ/ApJ/717/1067/table4Spectral classification of YSOsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSFO 38 source name (MIR-NNN mainly)meta.id;meta.maincharANameAlternate name (BRC38= <[OSP2002] BRC 38 NN> or GFG= <[GFG2007] NN> in Simbad)meta.idcharDateObservation datetime.epoch;obsnullableWH{alpha} equivalent width ({AA})0.1nmspect.line.eqWidth;em.line.HalphadoubleSpTMK spectral typesrc.spTypechare_SpT? Subtype uncertaintystat.errorintnullableTeff? Effective temperatureKphys.temperature.effectiveintnullableTypeYSO type (CTTS/WTTS: Classical or Weak TTau)src.classcharHa? H{alpha} emission line at 10% of the peak intensity (H{alpha}[10%]) (1)km/sspect.dopplerVelocfloatnullablelogdM/dt? Rate of accretion from H{alpha} emission (1)log(solMass.yr**-1)phys.mass.lossfloatnullablealpha? IRAC slopespect.indexfloatnullableE(V-I)? V-I color indexmagphot.color.excessfloatnullableAv? Extinction (2)magphys.absorptionfloatnullableErat? E(V-I)/E(B-V) color index ratiomagphys.absorptionfloatnullableJ/ApJ/717/1067/table1*Results of near- and mid-IR photometry of the mid-infrared sources in SFO 38recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMSimbad column added by the CDSmeta.ref.urlcharNameSFO 38 source name (<[CMB2010] MIR-NNN> in Simbad)meta.id;meta.maincharprimaryr_Name[ab] JHKs photometry reference if not 2MASS (1)meta.ref;pos.framecharRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainJmag? 2MASS J-band magnitudemagphot.mag;em.IR.Jfloatnullablee_Jmag? Jmag uncertaintymagstat.error;phot.mag;em.IR.Jfloatnullablel_HmagLimit flag on Hmagmeta.code.errorcharHmag? 2MASS H-band magnitudemagphot.mag;em.IR.Hfloatnullablee_Hmag? Hmag uncertaintymagstat.error;phot.mag;em.IR.HfloatnullableKsmag? 2MASS Ks-band magnitudemagphot.mag;em.IR.Kfloatnullablee_Ksmag? Ksmag uncertaintymagstat.error;phot.mag;em.IR.KfloatnullableF3.6? Spitzer/IRAC 3.6um flux densitymJyphot.mag;em.IR.3-4umfloatnullablee_F3.6? F3.6 uncertaintymJystat.errorfloatnullableF4.5? Spitzer/IRAC 4.5um flux densitymJyphot.mag;em.IR.4-8umfloatnullablee_F4.5? F4.5 uncertaintymJystat.errorfloatnullableF5.8? Spitzer/IRAC 5.8um flux densitymJyphot.flux.density;em.IR.4-8umfloatnullablee_F5.8? F5.8 uncertaintymJystat.errorfloatnullableF8.0? Spitzer/IRAC 8.0um flux densitymJyphot.flux.density;em.IR.8-15umfloatnullablee_F8.0? F8.0 uncertaintymJystat.errorfloatnullableF24? Spitzer/MIPS 24um flux densitymJyphot.flux.density;em.IR.15-30umfloatnullablee_F24? F24 uncertaintymJystat.errorfloatnullableClassPreliminary classification (Trans., III/S, I, II, I/II, 0/I, Galaxy, H_2_) (2)meta.code.class;src.classCommCommentsmeta.notef_Comm[c] c: variable in J/H/Ksmeta.codechar2MDisplay the 2MASS data (Cutri et al. 2003, Cat. II/246)meta.ref.urlcharSimbadSimbad column added by the CDSmeta.refcharJ/ApJ/717/1067/table3BVRI photometry of MIR sources in SFO 38recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSFO 38 source name (MIR-NNN mainly)meta.id;meta.maincharBmag? HCT/HFOSC B-band magnitudemagphot.mag;em.opt.Bfloatnullablee_Bmag? Bmag uncertaintymagstat.error;phot.mag;em.opt.BfloatnullableVmagHCT/HFOSC V-band magnitudemagphot.mag;em.opt.Vfloate_VmagVmag uncertaintymagstat.error;phot.mag;em.opt.VfloatRmagHCT/HFOSC R-band magnitudemagphot.mag;em.opt.Rfloate_RmagRmag uncertaintymagstat.error;phot.mag;em.opt.RfloatImagHCT/HFOSC I-band magnitudemagphot.mag;em.opt.Ifloate_ImagImag uncertaintymagstat.error;phot.mag;em.opt.IfloatVar[BVI ] Variability (1)meta.code;src.varchar