J/ApJ/815/130ivo://CDS.VizieR/J/ApJ/815/130doi:10.26093/cds/vizier.18150130CDSGuzman A.E.Sanhueza P.Contreras Y.Smith H.A.Jackson J.M.Hoq S.,Rathborne J.M.2018-01-30T07:18:24Z2016-04-01T10:27:16ZCDS support team

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

cds-question@unistra.frmolecular-cloudsh-ii-regionssurveysmillimeter-astronomysubmillimeter-astronomyWe present dust column densities and dust temperatures for ~3000 young, high-mass molecular clumps from the Millimeter Astronomy Legacy Team 90GHz survey, derived from adjusting single-temperature dust emission models to the far-infrared intensity maps measured between 160 and 870{mu}m from the Herschel/Herschel Infrared Galactic Plane Survey (Hi-Gal) and APEX/APEX Telescope Large Area Survey of the Galaxy (ATLASGAL) surveys. We discuss the methodology employed in analyzing the data, calculating physical parameters, and estimating their uncertainties. The population average dust temperature of the clumps are 16.8+/-0.2K for the clumps that do not exhibit mid-infrared signatures of star formation (quiescent clumps), 18.6+/-0.2K for the clumps that display mid-infrared signatures of ongoing star formation but have not yet developed an HII region (protostellar clumps), and 23.7+/-0.2 and 28.1+/-0.3K for clumps associated with HII and photo-dissociation regions, respectively. These four groups exhibit large overlaps in their temperature distributions, with dispersions ranging between 4 and 6K. The median of the peak column densities of the protostellar clump population is 0.20+/-0.02g/cm2, which is about 50% higher compared to the median of the peak column densities associated with clumps in the other evolutionary stages. We compare the dust temperatures and column densities measured toward the center of the clumps with the mean values of each clump. We find that in the quiescent clumps, the dust temperature increases toward the outer regions and that these clumps are associated with the shallowest column density profiles. In contrast, molecular clumps in the protostellar or HII region phase have dust temperature gradients more consistent with internal heating and are associated with steeper column density profiles compared with the quiescent clumps.2015ApJ...815..130Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/815/130CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/443/1555 : ATLASGAL massive star forming clump sample (Urquhart+, 2014)J/A+A/568/A41 : ATLASGAL Compact Source Catalog: 280<l<60 (Urquhart+, 2014)J/A+A/565/A75 : ATLASGAL dust condensation in Galactic plane (Csengeri+, 2014)J/ApJ/777/157 : 90GHz obs. of high-mass star-forming regions (Hoq+, 2013)J/MNRAS/435/400 : ATLASGAL Properties of compact HII regions (Urquhart+, 2013)J/ApJS/208/11 : The Red MSX Source Survey: massive protostars (Lumsden+, 2013)J/MNRAS/431/1752 : ATLASGAL 6.7GHz methanol masers (Urquhart+, 2013)J/A+A/553/A115 : Millimetric and far-IR maps of IRDC 18310-4 (Beuther+, 2013)J/A+A/552/A40 : MSX high-contrast IRDCs with NH_3_ (Chira+, 2013)J/A+A/549/A45 : ATLASGAL Compact Source Catalog: 330<l<21 (Contreras+, 2013)J/ApJ/756/60 : A 3mm line survey in 37 IR dark clouds (Sanhueza+, 2012)J/A+A/544/A146 : ATLASGAL cold high-mass clumps with NH_3_ (Wienen+, 2012)J/MNRAS/418/1689 : Red MSX water maser and ammonia emissions (Urquhart+, 2011)J/ApJS/197/25 : MALT90 pilot survey (Foster+, 2011)J/ApJ/741/110 : The BGPS. VII. Massive star-forming regions (Dunham+, 2011)J/ApJ/723/1019 : Galactic SFR and gas surface densities (Heiderman+, 2010)J/ApJS/188/123 : The Bolocam Galactic Plane Survey. II. (Rosolowsky+, 2010)J/ApJ/715/310 : Early stages of star formation in IRDCs (Rathborne+, 2010)J/A+A/501/539 : RMS survey. 6cm observations of YSOs (Urquhart+, 2009)J/A+A/487/993 : MAMBO Mapping of c2d Clouds and Cores (Kauffmann+, 2008)J/A+A/481/345 : SED evolution in MYSOs (Molinari+, 2008)J/A+A/461/11 : Radio observations of MYSO candidates (Urquhart+, 2007)J/A+A/426/97 : SIMBA survey. 1.2-mm/IRAS sources (Faundez+, 2004)J/ApJ/566/945 : Massive star forming regions at 1.2mm (Beuther+, 2002)J/A+A/291/943 : Protostellar cores (Ossenkopf+, 1994)http://malt90.bu.edu/ : MALT90 home pagehttp://www.cosmos.esa.int/web/herschel/home : Herschel home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/815/130https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/815/130http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/815/130https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/815/130https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/815/130http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/815/130GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/815/130/table3 (Temperature and dust column density of MALT90 sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/815/130/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/815/130/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/815/130/table3?GETtext/xml+votable180.050000true294.46207-27.048430.0055555555555555565/10295 10318 10319 10327 10329 11808 11811 11817 11820 11823 11920 11923 11976 11977 11983 11994 12020 12194 12204 12218 6/29761 29764 29782 29788 29789 37208 41174 41175 41177 41178 41189 41190 41191 41196 41197 41200 41202 41263 41271 41295 41307 41313 41314 41320 41328 41345 41346 41348 41349 41352 41360 41610 41987 41990 41991 41992 41993 41994 41996 41997 42001 42002 42003 42004 42005 42006 42008 42048 47146 47238 47239 47241 47243 47258 47284 47286 47287 47288 47289 47291 47336 47338 47339 47637 47684 47685 47686 47689 47704 47706 47707 47708 47710 47711 47728 47729 47730 47732 47733 47735 47882 47883 47913 47916 47917 47920 47922 47923 47926 47928 47929 47930 47982 47983 47994 48064 48068 48069 48071 48086 48087 48089 48092 48093 48095 48770 48780 48782 48783 48794 48804 48805 48822 48823 48825 48828 48829 48831 48876 48878https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/815/130?format=asciiRadiodefaultJ/ApJ/815/130/table3Temperature and dust column density of MALT90 sourcesf_AGAL[m] Flag on AGAL (1)meta.codecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintAGALSource identifier (LLL.lll+BB.bbb; <AGAL GLLL.lll+BB.bbb> in Simbad)meta.id;meta.maincharRad[11/145] Effective radiusarcsecphys.angSizefloat<Td>[9.9/51] Average dust temperatureKphys.temperaturefloate_<Td>Lower 1{sigma} uncertainty in <Td>Kstat.errorfloatE_<Td>Upper 1{sigma} uncertainty in <Td>Kstat.error;stat.maxfloatTdpk[5/51] Dust temperature at peak column density positionKphys.temperaturefloate_TdpkLower 1{sigma} uncertainty in TdpkKstat.errorfloatE_TdpkUpper 1{sigma} uncertainty in TdpkKstat.error;stat.maxfloat<Ng>[0.008/5.8] Average column densityg.cm**-2phys.columnDensity;stat.meanfloat<logNg>[-2.1/0.8] Average log column density (2)log(g.cm**-2)phys.columnDensity;stat.meanfloate_<logNg>The 1{sigma} uncertainty in <logNg>log(g.cm**-2)stat.errorfloatNgpk[0.02/25.2] Peak column densityg.cm**-2phys.columnDensity;stat.maxfloatlogNgpk[-1.7/1.4] Log peak column densitylog(g.cm**-2)phys.columnDensity;stat.maxfloate_logNgpkThe 1{sigma} uncertainty in logNgpklog(g.cm**-2)stat.errorfloatClassMid-IR classification (PDR=photodissociation region)src.classcharf_Class[CD] Flag on Class (3)meta.codechar_RAxcompPositions from ATLASGAL compact source catalog (Urquhart+, 2014, J/A+A/568/A41) (right ascension part)degpos.eq.ra;meta.main_DExcompPositions from ATLASGAL compact source catalog (Urquhart+, 2014, J/A+A/568/A41) (declination part)degpos.eq.dec;meta.main_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)degpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)degpos.eq.decnullableindexed