J/ApJS/156/169ivo://CDS.VizieR/J/ApJS/156/169doi:10.26093/cds/vizier.21560169CDSFroebrich D.2017-10-09T13:34:30Z2016-03-24T14:17:26ZCDS support team

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

cds-question@unistra.frpre-main-sequence-starsinfrared-sourcesWe searched the literature to obtain a complete list of known Class 0 sources. A list of 95 confirmed or candidate objects was compiled. To the best of our knowledge, all published broadband observations from 1{mu}m to 3.5mm have been collected and are assembled in a catalog. These data were used to determine physical properties (T_bol_, L_bol_, L_smm_/L_bol_, M_env_) and for a uniform classification. Fifty sources possess sufficient observational data and are classified as Class 0 or Class 0/1 objects. The source properties are compared with different evolutionary models to infer ages and masses, and their correlations are investigated. About 25% of the sources are found to be in a quiet accretion phase or possess a significantly different time evolution of the accretion rate than the average. In Taurus, with its isolated star formation mode, this seems especially to be the case.2005ApJS..156..169Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/156/169CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/PASP/107/617 : YSOs and candidate protostars catalog. (Pollanen+, 1995)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/156/169https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/156/169http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/156/169https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/156/169https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/156/169http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/156/169GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/156/169/table3 (Complete source sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/156/169/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/156/169/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/156/169/table3?GETtext/xml+votable180.050000true36.769666761.87352780.0055555555555555566/859 860 862 881 1048 1054 1082 1539 3649 13050 13981 13991 14299 14315 14317 14330 14621 15483 15588 15682 15759 15790 15857 15965 16129 16197 21436 22797 22805 22854 22855 22866 22873 23030 23533 23549 23562 23637 23739 28913 29367 29653 30318 30355 30366 30519 30623 32083 36956 39396 41132 41133 41134 42383 42610 42738 42970 42981 43010 47828https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/156/169?format=asciiInfrareddefaultJ/ApJS/156/169/table3Complete source sampleSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject namemeta.id;meta.maincharAgeSimbad column added by the CDSmeta.numberintnullablePSimbad column added by the CDSmeta.numberintnullableAllSimbad column added by the CDSmeta.numberintnullableNSimbad column added by the CDSmeta.ref.urlcharONameOther namesmeta.idcharr_ONameObject references (1)meta.ref;pos.frameRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainr_DEJ2000Position reference (in refs.dat file)meta.refintDist[130/4900] Distancepcpos.distance;pos.heliocentricintr_Dist[1/70] Distance reference (in refs.dat file)meta.ref;pos.frameintJ/ApJS/156/169/table2Age and mass estimates from evolutionary modelsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject namemeta.id;meta.maincharf_Name[*] Flag on Name (*) (G1)meta.codecharClassClass (0, 0/1, or 1) (G2)meta.code.classcharf_Class[c] Classification uncertain, since no or no conclusive submillimeter maps are availablemeta.codecharT1Answer for our first test (y, n, or ?) (G3)meta.codecharT2Answer for our second test (y, n, or ?) (G3)meta.codecharT3Answer for our third test (y, n, or ?) (G3)meta.codecharN[3/8] Number that gives the order of magnitude between the maximum of the emission and the NIR detection/upper limitmeta.numberintAgeS[20/430] Age, from model of Smith (1)kyrtime.ageintl_AgeM[>] Lower limit flag on AgeMmeta.code.errorcharAgeM[20/500] Age, from model of Myers (1998ApJ...492..703M)kyrtime.ageintAgeA[0/200] Age, from model of Andre (2)kyrtime.ageintl_MassS[>] Lower limit flag on MassSmeta.code.errorcharMassS[0.01/50] Final mass, from model of Smith (1)solMassphys.massfloatl_MassM[<>] Limit flag on MassMmeta.code.errorcharMassM[0.3/2] Final mass, from model of Myers (1998ApJ...492..703M)solMassphys.massfloatl_MassA[<>] Limit flag on MassAmeta.code.errorcharMassA[0.2/3] Final mass, from model of Andre (2)solMassphys.massfloatJ/ApJS/156/169/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRef[1/71] Reference numbermeta.id;meta.mainintBibcodeBibcodemeta.bib.bibcodecharAutAuthor's namemeta.bib.authorcharComCommentsmeta.notecharJ/ApJS/156/169/table4Notes to individual sourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject name (1)meta.id;meta.maincharComObject descriptionmeta.noteJ/ApJS/156/169/table1Obtained object parameters, sorted by SED QualityNameObject namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintf_NameFlag on Name (* or **) (G1)meta.codecharbeta[-0.7/4.5]? Submillimeter slope of the SED ({beta})spect.indexfloatnullablel_Tbol[<] Upper limit flag on Tbolmeta.code.errorcharTbol[30/241]? Bolometric temperatureKphys.temperatureintnullablel_Lbol[<>] Limit flag on Lbolmeta.code.errorcharLbol[0.12/19000]? Bolometric luminositysolLumphys.luminositydoublenullablel_Lsmm/Lbol[<>] Limit flag on Lsmm/Lbolmeta.code.errorcharLsmm/Lbol[0.002/0.208]? Ratio of submillimeter to bolometric luminosityphys.luminosity;arith.ratiofloatnullableMenv[0.16/190]? Envelope masssolMassphys.massfloatnullableClassClass (0, 0/1, 1, or ?) (G2)meta.code.classcharf_Class[c] Classification uncertain, since no or no conclusive submillimeter maps are availablemeta.codecharT1Answer for our first test (y, n, or ?) (G3)meta.codecharT2Answer for our second test (y, n, or ?) (G3)meta.codecharT3Answer for our third test (y or n) (G3)meta.codecharN[3/8]? Number that gives the order of magnitude between the maximum of the emission and the NIR detection/upper limitmeta.numberintnullable