J/A+A/625/A134ivo://CDS.VizieR/J/A+A/625/A134doi:10.26093/cds/vizier.36250134CDSRusseil D.Figueira M.Zavagno A.Motte F.Schneider N.,Men'shchikov A.Bontemps S.Andre P.Anderson L.D.Benedettini M.,Didelon P.Di Francesco J.Elia D.Koenyves V.Nguyen Luong Q.Nony T.,Pezzuto S.Rygl K.L.J.Schisano E.Spinoglio L.Tige J.White G.J.2021-02-03T13:45:51Z2019-05-28T08:29:59ZCDS support team

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

cds-question@unistra.frh-ii-regionsinfrared-sourcesinterstellar-mediumTo constrain models of high-mass star formation it is important to identify the massive dense cores (MDCs) able to form high-mass star(s). It is one of purposes of the Herschel/HOBYS key program. Here, we make the census and characterisation of the properties of the MDCs population of the NGC 6357 HII region. Our study is based on the Herschel PACS and SPIRE 70-500 microns images of NGC 6357 complemented with (sub)millimetre and mid-infrared data. We followed the procedure, established by the Herschel/HOBYS consortium, to extract ~0.1pc massive dense cores using the getsources software. We estimated their physical parameters (temperatures, masses, luminosities) from spectral energy distribution (SED) fitting. We have obtained a complete census of 23 massive dense cores, amongs which one is found to be IR-quiet and twelve are starless, representing very early stages of the star-formation process. Focussing on the starless MDCs, we consider their evolutionary status, and suggest that only five are likely to form a high-mass star. We find that, contrarily to the case in NGC 6334, the NGC 6357 region does not exhibit any ridge/hub features that are believed to be crucial to the massive star formation process. This study adds support for an empirical model in which massive dense cores and protostars simultaneously accrete mass from the surrounding filaments. In addition, the massive star formation in NGC 6357 seems to have stopped and the hottest stars in Pismis 24 have disrupted the filaments.2019A&A...625A.134Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/625/A134CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/168/100 : X-ray study of star-forming region NGC 6357 (Wang+, 2007)J/A+A/538/A142 : OB stars in NGC 6334 and NGC 6357 (Russeil+, 2012)J/A+A/587/A135 : Halpha images of NGC 6334 and NGC 6357 (Russeil+, 2016)J/A+A/607/A86 : NGC 6334 and NGC 6357 OB stars spectra (Russeil+, 2017)J/A+A/602/A77 : HOBYS: 46 MDCs found in NGC 6334 (Tige+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/625/A134https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/625/A134http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/625/A134https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/625/A134https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/625/A134http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/625/A134GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/625/A134/tablec1 (Information of the 155 reliable sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/625/A134/tablec1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/625/A134/tablec1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/625/A134/tablec1?GETtext/xml+votable180.050000true261.715-34.14031670.005555555555555556Cone search capability for table J/A+A/625/A134/tabc2-4 (Information and fluxes of the 23 massive dense cores (MDCs))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/625/A134/tabc2-4?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/625/A134/tabc2-4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/625/A134/tabc2-4?GETtext/xml+votable180.050000true261.318975-34.412863890.005555555555555556Cone search capability for table J/A+A/625/A134/list (List of fits maps)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/625/A134/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/625/A134/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/625/A134/list?GETtext/xml+votable180.050000true261.70989-34.431970.005555555555555556Associated datahttps://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/A+A/625/A1345/10615 6/1.6553710550405622e-22 5.517906024225661e-20https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/625/A134?format=asciiInfrareddefaultJ/A+A/625/A134/tablec1Information of the 155 reliable sourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNumber[1/155] Source numbermeta.id;meta.mainintFWHMDeconvolved sizepcphys.angSizefloatTTemperatureKphys.temperaturefloate_TTemperature uncertaintyKstat.errorfloatMassMasssolMassphys.massfloate_MassMass uncertaintysolMassstat.error;phys.massfloatLdataLuminosity from datasolLumphys.luminosityintLfitLuminosity from fitsolLumphys.luminosityintnH2Density1e+06cm**-3phys.densityfloate_nH2Density uncertainty1e+06cm**-3stat.errorfloatRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainMDC? MDC numbermeta.idintnullableSimbadSimbad column added by the CDSmeta.ref.urlcharJ/A+A/625/A134/tabc2-4Information and fluxes of the 23 massive dense cores (MDCs)Si500Integrated flux at 500umJyphot.flux.density;em.mm.400-750GHzfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMDC[1/23] MDC identification numbermeta.idintRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainSp70? Peak intensity at 70umJy/beamphot.flux.density;em.IR.30-60umfloatnullablee_Sp70? Peak intensity at 70um uncertaintyJy/beamstat.errorfloatnullableSi70? Integrated flux at 70umJyphot.flux.density;em.IR.30-60umfloatnullablee_Si70? Integrated flux at 70um uncertaintyJystat.errorfloatnullableAMAJ70? FWHM major axis at 70umarcsecphys.angSize;em.IR.60-100umfloatnullableAMIN70? FWHM minor axis at 70umarcsecphys.angSize;em.IR.60-100umfloatnullablePA70? Position angle at 70umdegpos.posAngfloatnullableSp160Peak intensity at 160umJy/beamphot.flux.density;em.mm.1500-3000GHzfloate_Sp160Peak intensity at 160um uncertaintyJy/beamstat.errorfloatSi160Integrated flux at 160umJyphot.flux.density;em.mm.1500-3000GHzfloate_Si160Integrated flux at 160um uncertaintyJystat.errorfloatAMAJ160FWHM major axis at 160umarcsecphys.angSize;em.mm.1500-3000GHzfloatAMIN160FWHM minor axis at 160umarcsecphys.angSize;em.mm.1500-3000GHzfloatPA160Position angle at 160umdegpos.posAngfloatSp250Peak intensity at 250umJy/beamphot.flux.density;em.mm.750-1500GHzfloate_Sp250Peak intensity at 250um uncertaintyJy/beamstat.errorfloatSi250Integrated flux at 250umJyphot.flux.density;em.mm.750-1500GHzfloate_Si250Integrated flux at 250um uncertaintyJystat.errorfloatAMAJ250FWHM major axis at 250umarcsecphys.angSize;em.mm.750-1500GHzfloatAMIN250FWHM minor axis at 250umarcsecphys.angSize;em.mm.750-1500GHzfloatPA250Position angle at 250umdegpos.posAngfloatSp350Peak intensity at 350umJy/beamphot.flux.density;em.mm.750-1500GHzfloate_Sp350Peak intensity at 350um uncertaintyJy/beamstat.errorfloatSi350Integrated flux at 350umJyphot.flux.density;em.mm.750-1500GHzfloate_Si350Integrated flux at 350um uncertaintyJystat.errorfloatAMAJ350FWHM major axis at 350umarcsecphys.angSize;em.mm.750-1500GHzfloatAMIN350FWHM minor axis at 350umarcsecphys.angSize;em.mm.750-1500GHzfloatPA350Position angle at 350umdegpos.posAngfloatSp500Peak intensity at 500umJy/beamphot.flux.density;em.mm.400-750GHzfloate_Sp500Peak intensity at 500um uncertaintyJy/beamstat.errorfloate_Si500Integrated flux at 500um uncertaintyJystat.errorfloatAMAJ500FWHM major axis at 500umarcsecphys.angSize;em.mm.400-750GHzfloatAMIN500FWHM minor axis at 500umarcsecphys.angSize;em.mm.400-750GHzfloatPA500Position angle at 500umdegpos.posAngfloatSp870Peak intensity at 870umJy/beamphot.flux.density;em.mm.200-400GHzfloate_Sp870Peak intensity at 870um uncertaintyJy/beamstat.errorfloatSi870Integrated flux at 870umJyphot.flux.density;em.mm.200-400GHzfloate_Si870Integrated flux at 870um uncertaintyJystat.errorfloatAMAJ870FWHM major axis at 870umarcsecphys.angSize;em.mm.200-400GHzfloatAMIN870FWHM minor axis at 870umarcsecphys.angSize;em.mm.200-400GHzfloatPA870Position angle at 870umdegpos.posAngfloatSp1200? Peak intensity at 1200umJy/beamphot.flux.density;em.mm.200-400GHzfloatnullablee_Sp1200? Peak intensity at 1200um uncertaintyJy/beamstat.errorfloatnullableSi1200? Integrated flux at 1200umJyphot.flux.density;em.mm.200-400GHzfloatnullablee_Si1200? Integrated flux at 1200um uncertaintyJystat.errorfloatnullableAMAJ1200? FWHM major axis at 1200umarcsecphys.angSize;em.mm.200-400GHzfloatnullableAMIN1200? FWHM minor axis at 1200umarcsecphys.angSize;em.mm.200-400GHzfloatnullablePA1200? Position angle at 1200umdegpos.posAngfloatnullableSi3.6? Integrated flux at 3.6umJyphot.mag;em.IR.3-4umfloatnullablee_Si3.6? 3.6um flux .6um uncertaintyJystat.errorfloatnullableSi4.5? Integrated flux at 4.5umJyphot.mag;em.IR.4-8umfloatnullablee_Si4.5? 4.5um flux .5um uncertaintyJystat.errorfloatnullableSi5.8? Integrated flux at 5.8umJyphot.flux.density;em.IR.4-8umfloatnullablee_Si5.8? 5.8um flux uncertaintyJystat.errorfloatnullableSi8.0? Integrated flux at 8.0umJyphot.flux.density;em.IR.8-15umfloatnullablee_Si8.0? 8.0um flux uncertaintyJystat.errorfloatnullableGNameGLIMPSE identificationmeta.idcharJ/A+A/625/A134/listList of fits mapsAssocDataAssociated Data web pagemeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension of center (J2000)degpos.eq.ra;meta.mainDEJ2000Declination of center (J2000)degpos.eq.dec;meta.mainNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintsizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitschar