J/MNRAS/453/2006ivo://CDS.VizieR/J/MNRAS/453/2006doi:10.26093/cds/vizier.74532006CDSBuckle J.V.Richer J.S.2024-08-15T20:15:10Z2016-04-27T07:46:35ZCDS support team

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

cds-question@unistra.frmolecular-cloudsmillimeter-astronomysubmillimeter-astronomyWe present wide-field observations of the NGC 2264 molecular cloud in the dust continuum at 850 and 450{mu}m using SCUBA-2 on the James Clerk Maxwell Telescope. Using ^12^CO 3->2 molecular line data, we determine that emission from CO contaminates the 850{mu}m emission at levels ~30 per cent in localized regions associated with high-velocity molecular outflows. Much higher contamination levels of 60 per cent are seen in shocked regions near the massive star S Mon. If not removed, the levels of CO contamination would contribute an extra 13 per cent to the dust mass in NGC 2264. We use the fellwalker routine to decompose the dust into clumpy structures, and a Hessian-based routine to decompose the dust into filamentary structures. The filaments can be described as a hub-filament structure, with lower column density filaments radiating from the NGC 2264 C protocluster hub. Above mean filament column densities of 2.4x10^22^cm^-2^, star formation proceeds with the formation of two or more protostars. Below these column densities, filaments are starless, or contain only a single protostar.2015MNRAS.453.2006Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/453/2006CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/127/2659 : CHANDRA observations of NGC 2264 (Ramirez+, 2004)J/A+A/455/903 : ACIS-I observations of NGC 2264 (Flaccomio+, 2006)J/AJ/134/999 : X-ray observations of NGC 2264 (Dahm+, 2007)J/AJ/138/1116 : A Spitzer view of NGC 2264 (Sung+, 2009)J/A+A/499/175 : ^12^CO(2-1) map of NGC 2264-C (Maury+, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/453/2006https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/453/2006http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/453/2006https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/453/2006https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/453/2006http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/453/2006GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/453/2006/table1 (Filament properties, assuming a filament width of 0.1pc.)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/453/2006/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/453/2006/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/453/2006/table1?GETtext/xml+votable180.050000true100.52779179.169250.005555555555555556Cone search capability for table J/MNRAS/453/2006/tablea1 (*SCUBA-2 850um dust clumps, with peak positions reported)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/453/2006/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/453/2006/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/453/2006/tablea1?GETtext/xml+votable180.050000true100.30170839.48666110.0055555555555555566/23636-23637 236392.232294361788794e-22 2.414356229231205e-22https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/453/2006?format=asciiMillimeterdefaultJ/MNRAS/453/2006/table1Filament properties, assuming a filament width of 0.1pc.recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFilFilament sequential numbermeta.recordintRAJ2000Central filament right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Central filament declination (J2000)pos.eq.dec;meta.mainLengthFilament lengthpcsrc.morph.scLengthfloat<N(H2)>Filament mean H_2_ column density1e+22cm**-2phys.columnDensity;stat.meanfloatMassFilament masssolMassphys.massintMass/LengthFilament mass-to-length ratiosolMass/pcphys.mass;phys.size;arith.ratiointVdensFilament volume densitycm**-3phys.densitydouble<Tdust>Filament mean dust temperatureKphys.temperaturefloatJ/MNRAS/453/2006/tablea1*SCUBA-2 850um dust clumps, with peak positions reportedSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClumpClump sequential numbermeta.recordintRAJ2000Peak right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Peak declination (J2000)pos.eq.dec;meta.mainSizeClump sizearcsec**2phys.areaintFpeakSCUBA peak flux at 850ummJy/beamphot.flux.density;em.mm.200-400GHzfloatFtotSCUBA total flux at 850ummJyphot.flux.density;em.mm.200-400GHzfloat<T>Clump mean temperatureKphys.temperaturefloat<N(H2)>Clump mean H_2_ column density1e+22cm**-2phys.columnDensity;stat.meanfloatMassClump masssolMassphys.massfloatClassSpitzer classsrc.classcharSCUBAMatching SCUBA coremeta.idchar