J/A+A/587/A106ivo://CDS.VizieR/J/A+A/587/A106doi:10.26093/cds/vizier.35870106CDSZari E.Lombardi M.Alves J.Lada C.Bouy H.2022-05-02T14:27:30Z2016-02-26T08:33:34ZCDS support team

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

cds-question@unistra.frinterstellar-mediummolecular-cloudsyoung-stellar-objectsinfrared-photometryWe present optical depth and temperature maps of the Perseus molecular cloud, obtained combining dust emission data from the Herschel and Planck satellites and 2MASS/NIR dust extinction maps. The maps have a resolution of 36~arcsec in the Herschel regions, and of 5~arcmin elsewhere. The dynamic range of the optical depth map ranges from 1x10^-2^mag up to 20mag in the equivalent K band extinction. We also evaluate the ratio between the SI2.2{mu} extinction coefficient and the SI850{mu} opacity. The value we obtain is close to the one found in the Orion B molecular cloud. We show that the cumulative and the differential area function of the data (which is proportional to the probability distribution function of the cloud column density) follow power laws with index respectively ~=-2, and ~=-3. We use WISE data to improve current YSO catalogs based mostly on Spitzer data and we build an up-to-date selection of Class I/0 objects. Using this selection, we evaluate the local Schmidt law, {Sigma}_YSO{prop.to}{Sigma}_gas_^{beta}^, showing that {beta}=2.4+/-0.6. Finally, we show that the area-extinction relation is important for determining the star formation rate in the cloud, which is in agreement with other recent works.2016A&A...587A.106Zhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/587/A106CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/674/336 : Spitzer observations of NGC 1333 (Gutermuth+, 2008)J/ApJS/181/321 : Properties of Spitzer c2d dark clouds (Evans+, 2009)J/ApJS/184/18 : Spitzer survey of young stellar clusters (Gutermuth+, 2009)J/AJ/150/40 : The Spitzer c2d survey of clouds. XII. Perseus (Young+, 2015)J/A+A/566/A45 : Orion optical-depth and column-density maps (Lombardi+, 2014)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/587/A106https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/587/A106http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/587/A106https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/587/A106https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/587/A106http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/587/A106GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/587/A106/tablec1 (Catalog of the protostars used to determine the Schmidt law)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/587/A106/tablec1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/587/A106/tablec1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/587/A106/tablec1?GETtext/xml+votable180.050000true55.872623431.87208370.005555555555555556Cone search capability for table J/A+A/587/A106/list (List of fits files)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/587/A106/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/587/A106/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/587/A106/list?GETtext/xml+votable180.050000true54.061094230.05954480.0055555555555555566/854-855 857-860 862 881 1538-1539 15428.157980699529898e-21 6.513807192489934e-20https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/587/A106?format=asciiInfrareddefaultJ/A+A/587/A106/tablec1Catalog of the protostars used to determine the Schmidt lawrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainW1? WISE magnitude at 3.4ummagphot.mag;em.IR.3-4umfloatnullablee_W1? Error on WISE magnitude at 3.4ummagstat.errorfloatnullableW2? WISE magnitude at 4.6ummagphot.mag;em.IR.4-8umfloatnullablee_W2? Error on WISE magnitude at 4.6ummagstat.errorfloatnullableW3? WISE magnitude at 12ummagphot.flux.density;em.IR.8-15umfloatnullablee_W3? Error on WISE magnitude at 12ummagstat.errorfloatnullableW4? WISE magnitude at 22ummagphot.flux.density;em.IR.15-30umfloatnullablee_W4? Error on WISE magnitude at 22ummagstat.errorfloatnullableRefReferences to Spitzer catalogs (1)meta.id;meta.maincharJ/A+A/587/A106/listList of fits filesTitleTitle of the filemeta.title;meta.filecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintNzNumber of slicesmeta.numberintsizeSize of fits fileKibytephys.size;meta.fitsintFileNameName of the fits file in subdirectory fitsmeta.id;meta.fitschar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.decnullableindexed