J/AJ/137/4072ivo://CDS.VizieR/J/AJ/137/4072doi:10.26093/cds/vizier.51374072CDSMegeath S.T.Allgaier E.Young E.Allen T.Pipher J.L.Wilson T.L.2018-02-12T08:45:34Z2011-12-02T17:17:22ZCDS support team

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

cds-question@unistra.frmolecular-cloudsyoung-stellar-objectsinfrared-photometryThe giant molecular cloud G216-2.5, also known as Maddalena's cloud or the Maddalena-Thaddeus cloud, is distinguished by an unusual combination of high gas mass (1-6x10^5^_M{sun}), low kinetic temperatures (10K), and the lack of bright far-IR emission. Although star formation has been detected in neighboring satellite clouds, little evidence for star formation has been found in the main body of this cloud. Using a combination of mid-IR observations with the IRAC and Multiband Imaging Photometer for Spitzer instruments onboard the Spitzer Space Telescope, and near-IR images taken with the Flamingos camera on the KPNO 2.1m telescope, we identify a population of 41 young stars with disks and 33 protostars in the center of the cloud. Most of the young stellar objects are coincident with a filamentary structure of dense gas detected in CS (2->1). These observations show that the main body of G216 is actively forming stars, although at a low stellar density comparable to that found in the Taurus cloud.2009AJ....137.4072Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/137/4072CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/137/4072https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/137/4072http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/137/4072https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/137/4072https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/137/4072http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/137/4072GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/137/4072/table1 (Photometry of identified young stellar objects)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/137/4072/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/137/4072/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/137/4072/table1?GETtext/xml+votable180.050000true102.07375-4.5194440.0055555555555555566/22042 220432.4016587514425055e-21 1.7798557115773645e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/137/4072?format=asciiInfrareddefaultJ/AJ/137/4072/table1Photometry of identified young stellar objectsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSRC[1/74] Sequential number, <[MAY2009] NN> in Simbadmeta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainJmag? Flamingos J magnitudemagphot.mag;em.IR.Jfloatnullablee_Jmag? rms uncertainty on Jmagmagstat.error;phot.mag;em.IR.Jfloatnullablen_Jmag[a] a when magnitude from 2MASSmeta.notecharHmag? Flamingos H magnitudemagphot.mag;em.IR.Hfloatnullablee_Hmag? rms uncertainty on Hmagmagstat.error;phot.mag;em.IR.Hfloatnullablen_Hmag[a] a when magnitude from 2MASSmeta.notecharKmag? Flamingos K magnitudemagphot.mag;em.IR.Kfloatnullablee_Kmag? rms uncertainty on Kmagmagstat.error;phot.mag;em.IR.Kfloatnullablen_Kmag[a] a when magnitude from 2MASSmeta.notechar[3.6]? Spitzer/IRAC 3.6um magnitudemagphot.mag;em.IR.3-4umfloatnullablee_[3.6]? rms uncertainty on [3.6]magstat.errorfloatnullable[4.5]? Spitzer/IRAC 4.5um magnitudemagphot.mag;em.IR.4-8umfloatnullablee_[4.5]? rms uncertainty on [4.5]magstat.errorfloatnullable[5.8]? Spitzer/IRAC 5.8um magnitudemagphot.flux.density;em.IR.4-8umfloatnullablee_[5.8]? rms uncertainty on [5.8]magstat.errorfloatnullable[8.0]? Spitzer/IRAC 8.0um magnitudemagphot.flux.density;em.IR.8-15umfloatnullablee_[8.0]? rms uncertainty on [8.0]magstat.errorfloatnullable[24]? Spitzer/MIPS 24um magnitudemagphot.flux.density;em.IR.15-30umfloatnullablee_[24]? rms uncertainty on [24]magstat.errorfloatnullable[70]? Spitzer/MIPS 70um magnitudemagphot.flux.density;em.IR.30-60umfloatnullablee_[70]? rms uncertainty on [70]magstat.errorfloatnullableClassClassification (Disk or Proto)src.classchar