J/MNRAS/449/1769ivo://CDS.VizieR/J/MNRAS/449/1769doi:10.26093/cds/vizier.74491769CDSSalji C.J.Richer J.S.Buckle J.V.Hatchell J.Kirk H.Beaulieu S.F.,Berry D.S.Broekhoven-Fiene H.Currie M.J.Fich M.Jenness T.,Johnstone D.Mottram J.C.Nutter D.Pattle K.Pineda J.E.Quinn C.,Tisi S.Walker-Smith S.Di Francesco J.Hogerheijde M.R.,Ward-Thompson D.Bastien P.Butner H.Chen M.Chrysostomou A.,Coude S.Davis C.J.Drabek-Maunder E.Duarte-Cabral A.Fiege J.,Friberg P.Friesen R.Fuller G.A.Graves S.Greaves J.Gregson J.,Holland W.Joncas G.Kirk J.M.Knee L.B.G.Mairs S.Marsh K.,Matthews B.C.Moriarty-Schieven G.Rawlings J.Robertson D.,Rosolowsky E.Rumble D.Sadavoy S.Thomas H.Tothill N.Viti S.,White G.J.Wilson C.D.Wouterloot J.Yates J.Zhu M.2024-08-14T20:20:52Z2016-01-13T09:33:43ZCDS support team

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

cds-question@unistra.frmolecular-cloudsstellar-massesWe employ SCUBA-2 (Submillimetre Common-User Bolometer Array 2) observations of the Orion A North molecular cloud to derive column density and temperature maps. We apply a novel, Hessian-based structural identification algorithm for detection of prestellar cores to these data, allowing for automated generation of the prestellar mass function. The resulting mass function is observed to peak at 1.39^+0.18^_-0.19_M_{sun}_, indicating a star-forming efficiency lower limit of ~14 per cent when compared with the Orion nebula Cluster initial mass function (IMF) peak. Additionally, the prestellar mass function is observed to decay with a high-mass power-law exponent {alpha}=2.53^+0.16^_-0.14_, indicating approximate functional similarity with the Salpeter IMF ({alpha}=2.35). This result, when combined with the results of previous investigations suggests a regional dependence of the star-forming efficiency.2015MNRAS.449.1769Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/449/1769CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/449/1769https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/449/1769http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/449/1769https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/449/1769https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/449/1769http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/449/1769GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/449/1769/prestel (*Prestellar cores and their properties catalogue)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/449/1769/prestel?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/449/1769/prestel?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/449/1769/prestel?GETtext/xml+votable180.050000true83.87556028-6.025691940.005555555555555556Cone search capability for table J/MNRAS/449/1769/starless (Starless cores and their properties catalogue)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/449/1769/starless?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/449/1769/starless?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/449/1769/starless?GETtext/xml+votable180.050000true83.83842417-6.029060280.0055555555555555566/21438-21439 22804-22805https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/449/1769?format=asciidefaultJ/MNRAS/449/1769/prestel*Prestellar cores and their properties cataloguerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDCore ID (within the catalog)meta.id;meta.mainintRAJ2000Right ascension (J2000.0)degpos.eq.ra;meta.mainDEJ2000Declination (J2000.0)degpos.eq.dec;meta.mainMassMasssolMassphys.massdoublee_Massrms uncertainty on MasssolMassstat.error;phys.massfloatTempTemperatureKphys.temperaturefloate_TempTemperature (1)Kstat.errorfloatRadDeconvolved radiuspcphys.size.radiusfloatSimbadSimbad column added by the CDSmeta.ref.urlcharJ/MNRAS/449/1769/starlessStarless cores and their properties cataloguerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDCore ID (within the catalog)meta.id;meta.mainintRAJ2000Right ascension (J2000.0)degpos.eq.ra;meta.mainDEJ2000Declination (J2000.0)degpos.eq.dec;meta.mainMassMasssolMassphys.massdoublee_Massrms uncertainty on MasssolMassstat.error;phys.massfloatTempTemperatureKphys.temperaturefloate_TempTemperature (1)Kstat.errorfloatRadDeconvolved radiuspcphys.size.radiusfloatSimbadSimbad column added by the CDSmeta.ref.urlchar