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Warm Gas and Dust of Massive Young Stellar Objects Revealed by Herschel PACS Spectroscopy

dc.contributor.authorKWON, Woojin,
hal.structure.identifierSRON Netherlands Institute for Space Research [SRON]
dc.contributor.authorVAN DER TAK, Floris,
hal.structure.identifierforeign laboratories [FL]
dc.contributor.authorKARSKA, Agata,
hal.structure.identifierKavli Institute for Astronomy and Astrophysics [Beijing] [KIAA-PKU]
dc.contributor.authorHERCZEG, Gregory,
dc.contributor.authorCHAVARRIA, Luis,
hal.structure.identifierFORMATION STELLAIRE 2015
dc.contributor.authorHERPIN, Fabrice
dc.contributor.authorWYROWSKI, Friedrich,
hal.structure.identifierFORMATION STELLAIRE 2015
dc.contributor.authorBRAINE, J.
hal.structure.identifierLeiden Observatory [Leiden]
hal.structure.identifierMax-Planck-Institut für Extraterrestrische Physik [MPE]
dc.contributor.authorVAN DISHOECK, Ewine,
dc.date.issued2015-08
dc.date.conference2015-01-04
dc.description.abstractEnWe present results of Herschel PACS imaging spectroscopy data toward ten massive young stellar objects taken as part of the WISH project. Our sample consists of four high mass protostellar objects (HMPOs), two hot molecular cores (HMCs), and four ultracompact HII regions (UCHIIs), and the spectra cover a broad range of wavelengths (55 to 210 micron) presenting various atomic and molecular lines as well as excellent continua. By fitting the continua utilizing a modified black-body formula we estimate mass-weighted temperature and column density distributions of warm dust and find that UCHII regions are hottest and HMCs are most deeply embedded. We also estimate rotational temperature and column density distributions of warm CO gas using the rotational diagram analysis. In addition, based on the comparison of high J CO line fluxes to the RATRAN estimates of central heating envelope models, we find that majority of warm CO is originated from bipolar outflow shocks.
dc.language.isoen
dc.title.enWarm Gas and Dust of Massive Young Stellar Objects Revealed by Herschel PACS Spectroscopy
dc.typeCommunication dans un congrès
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Cosmologie et astrophysique extra-galactique [astro-ph.CO]
bordeaux.page54730
bordeaux.volume22
bordeaux.conference.title2015IAUGA..2254730K - IAU General Assembly, Meeting #29, #2254730 - held 4-8 January 2015 in Seattle, USA
bordeaux.countryUS
bordeaux.conference.citySeattle
bordeaux.peerReviewedoui
hal.identifierhal-01197427
hal.version1
hal.invitednon
hal.proceedingsnon
hal.conference.end2015-01-08
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01197427v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2015-08&rft.volume=22&rft.spage=54730&rft.epage=54730&rft.au=KWON,%20Woojin,&VAN%20DER%20TAK,%20Floris,&KARSKA,%20Agata,&HERCZEG,%20Gregory,&CHAVARRIA,%20Luis,&rft.genre=unknown


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