J/MNRAS/448/1551ivo://CDS.VizieR/J/MNRAS/448/1551doi:10.26093/cds/vizier.74481551CDSRumble D.Hatchell J.Gutermuth R.A.Kirk H.Buckle J.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.,Salji C.Tisi S.Walker-Smith S.Di Francesco J.Hogerheijde M.R.,Ward-thompson D.Allen L.E.Cieza L.A.Dunham M.M.Harvey P.M.,Stapelfeldt K.R.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.Richer J.Robertson D.,Rosolowsky E.Sadavoy S.Thomas H.Tothill N.Viti S.White G.J.,Wilson C.D.Wouterloot J.Yates J.Zhu M.2024-08-14T20:20:04Z2015-12-18T12:18:18ZCDS support team

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

cds-question@unistra.frh-ii-regionsyoung-stellar-objectsmillimeter-astronomyphotometrysubmillimeter-astronomyWe present SCUBA-2 450 and 850{mu}m observations of the Serpens MWC 297 region, part of the James Clerk Maxwell Telescope (JCMT) Gould Belt Survey of nearby star-forming regions. Simulations suggest that radiative feedback influences the star formation process and we investigate observational evidence for this by constructing temperature maps. Maps are derived from the ratio of SCUBA-2 fluxes and a two-component model of the JCMT beam for a fixed dust opacity spectral index of {beta}=1.8. Within 40-arcsec of the B1.5Ve Herbig star MWC 297, the submillimetre fluxes are contaminated by free-free emission with a spectral index of 1.03+/-0.02, consistent with an ultracompact HII region and polar winds/jets. Contamination accounts for 73+/-5 per cent and 82+/-4 per cent of peak flux at 450{mu}m and 850 {mu}m, respectively. The residual thermal disc of the star is almost undetectable at these wavelengths. Young stellar objects (YSOs) are confirmed where SCUBA-2 850{mu}m clumps identified by the fellwalker algorithm coincide with Spitzer Gould Belt Survey detections. We identify 23 objects and use T_bol_ to classify nine YSOs with masses 0.09 to 5.1M_{sun}_. We find two Class 0, one Class 0/I, three Class I and three Class II sources. The mean temperature is 15+/-2K for the nine YSOs and 32+/-4K for the 14 starless clumps. We observe a starless clump with an abnormally high mean temperature of 46+/-2K and conclude that it is radiatively heated by the star MWC 297. Jeans stability provides evidence that radiative heating by the star MWC 297 may be suppressing clump collapse.2015MNRAS.448.1551Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/448/1551CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/448/1551https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/448/1551http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/448/1551https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/448/1551https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/448/1551http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/448/1551GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/448/1551/ysocs (SCUBA-2 40" aperture fluxes for the Spitzer YSOcs in the MWC297 region (table 2) and from the Spitzer Gould Belt survey (table 3))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/448/1551/ysocs?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/448/1551/ysocs?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/448/1551/ysocs?GETtext/xml+votable180.050000true276.756-3.83711110.0055555555555555566/30251 30254 30337 303402.3390025583187276e-22 5.517906024225661e-20https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/448/1551?format=asciiRadiodefaultJ/MNRAS/448/1551/ysocsSCUBA-2 40" aperture fluxes for the Spitzer YSOcs in the MWC297 region (table 2) and from the Spitzer Gould Belt survey (table 3)Note[ab] Note (1)meta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintYSOcYSOc identification numbermeta.idintprimarySSTgbsSSTgbs name (JHHMMSSss+DDMMSSs)meta.id;meta.maincharS3.6SCUBA-2 40" aperture 3.6um fluxmJyphot.mag;em.IR.3-4umfloate_S3.6rms uncertainty on S3.6mJystat.errorfloatS4.5SCUBA-2 40" aperture 4.5um fluxmJyphot.mag;em.IR.4-8umfloate_S4.5rms uncertainty on S4.5mJystat.errorfloatS5.8SCUBA-2 40" aperture 5.8um fluxmJyphot.flux.density;em.IR.4-8umfloate_S5.8rms uncertainty on S5.8mJystat.errorfloatS8.0SCUBA-2 40" aperture 8.0um fluxmJyphot.flux.density;em.IR.8-15umfloate_S8.0rms uncertainty on S8.0mJystat.errorfloatS24SCUBA-2 40" aperture 24um fluxmJyphot.flux.density;em.IR.15-30umfloate_S24rms uncertainty on S24mJystat.errorfloatS70? SCUBA-2 40" aperture 70um fluxmJyphot.flux.density;em.IR.30-60umintnullablee_S70? rms uncertainty on S70mJystat.errorintnullablealphaIR spectral indexspect.index;em.IRfloatl_S450Limit flag for 5-sigma upper limit on S450meta.code.errorcharS45040" aperture 450um fluxJyphot.flux.density;em.mm.400-750GHzfloate_S450rms uncertainty on S450Jystat.errorfloatl_S850Limit flag for 5-sigma upper limit on S850meta.code.errorcharS85040" aperture 850um fluxJyphot.flux.density;em.mm.200-400GHzfloate_S850rms uncertainty on S850Jystat.errorfloatS2S2-YSOc identification number, S2-YSOcNNmeta.idchar_RAPositions from SSTgbs name (right ascension part)degpos.eq.ra;meta.main_DEPositions from SSTgbs name (declination part)degpos.eq.dec;meta.mainJ/MNRAS/448/1551/table3Fellwalker Clumps extracted from SCUBA-2 data of the Serpens MWC297 regionrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSMMSMM clump identification numbermeta.idintn_JCMTLSG[*] Note (1)meta.notecharJCMTLSGJCMTLSG name (JHHMMSSs+DDMMSSs), position of the highest value pixel in each clump (at 850um)meta.id;meta.maincharS450Intergrated 450um flux of the clump as determined by fellwalker (2)Jyphot.flux.density;em.mm.400-750GHzfloatS840Intergrated 840um flux of the clump as determined by fellwalker (2)Jyphot.flux.density;em.mm.200-400GHzfloatM850Mass from 850um measurements (3)solMassphys.massfloate_M850rms uncertainty on M850 (4)solMassstat.errorfloatTMean temperature (5)Kphys.temperature;stat.meanfloate_T? rms uncertainty on T (5)Kstat.errorfloatnullableAreaClump as identified by the FELLWALKER algorithmpixphys.angSizeintMJJeans mass (6)solMassphys.massfloate_MJrms uncertainty on MJ (6)solMassstat.errorfloatM850/MJMass ratiophys.mass;arith.ratiofloate_M850/MJrms uncertainty on M850/MJstat.errorfloatYSOc? YSOc number SGBS (7)meta.idintnullable