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Variations in H2O+/H2O ratios toward massive star-forming regions

hal.structure.identifierMax-Planck-Institut für Radioastronomie [MPIFR]
dc.contributor.authorWYROWSKI, F.
hal.structure.identifierLaboratoire d'Astrophysique de Grenoble [LAOG]
dc.contributor.authorVAN DER TAK, F.
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierUniversité Sciences et Technologies - Bordeaux 1 [UB]
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
dc.contributor.authorHERPIN, Fabrice
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierUniversité Sciences et Technologies - Bordeaux 1 [UB]
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
dc.contributor.authorBAUDRY, Alain
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierUniversité Sciences et Technologies - Bordeaux 1 [UB]
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
dc.contributor.authorBONTEMPS, Sylvain
dc.contributor.authorCHAVARRIA, L.
dc.contributor.authorFRIESWIJK, W.
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierUniversité Sciences et Technologies - Bordeaux 1 [UB]
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
dc.contributor.authorJACQ, T.
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierUniversité Sciences et Technologies - Bordeaux 1 [UB]
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
hal.structure.identifierSRON Netherlands Institute for Space Research [SRON]
dc.contributor.authorMARSEILLE, M.
dc.contributor.authorSHIPMAN, R.
dc.contributor.authorVAN DISHOECK, E. F
dc.contributor.authorBENZ, A. O.
hal.structure.identifierINAF - Osservatorio Astrofisico di Arcetri [OAA]
dc.contributor.authorCASELLI, P.
dc.contributor.authorHOGERHEIJDE, M. R.
dc.contributor.authorJOHNSTONE, D.
dc.contributor.authorLISEAU, R.
hal.structure.identifierLaboratoire d'Astrophysique de Grenoble [LAOG]
dc.contributor.authorBACHILLER, R.
hal.structure.identifierLaboratoire d'Astrophysique de Grenoble [LAOG]
dc.contributor.authorBENEDETTINI, M.
dc.contributor.authorBERGIN, E.
dc.contributor.authorBJERKELI, P.
hal.structure.identifierLabOratoire proCédés énergIe bâtimEnt [LOCIE]
dc.contributor.authorBLAKE, G.
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierUniversité Sciences et Technologies - Bordeaux 1 [UB]
dc.contributor.authorBRAINE, J.
dc.contributor.authorBRUDERER, S.
hal.structure.identifierCentro de Investigaciones Biológicas [CSIC]
dc.contributor.authorCERNICHARO, J.
hal.structure.identifierLaboratoire d'Astrophysique de Grenoble [LAOG]
dc.contributor.authorCODELLA, C.
dc.contributor.authorDANIEL, F.
dc.contributor.authorDI GIORGIO, A. M.
hal.structure.identifierAstronomical Institute Anton Pannekoek [AI PANNEKOEK]
dc.contributor.authorDOMINIK, C.
dc.contributor.authorDOTY, S. D.
hal.structure.identifierLaboratoire d'Etude du Rayonnement et de la Matière en Astrophysique [LERMA]
dc.contributor.authorENCRENAZ, P.
dc.contributor.authorFICH, M.
hal.structure.identifierLaboratoire d'Astrophysique de Grenoble [LAOG]
dc.contributor.authorFUENTE, A.
dc.contributor.authorGIANNINI, T.
hal.structure.identifierLaboratoire d'Etude du Rayonnement et de la Matière en Astrophysique [LERMA]
dc.contributor.authorGOICOECHEA, J. R.
dc.contributor.authorDE GRAAUW, Th.
hal.structure.identifierLaboratoire d'Astrophysique de Grenoble [LAOG]
dc.contributor.authorHELMICH, F.
dc.contributor.authorHERCZEG, G. J.
dc.contributor.authorJØRGENSEN, J. K.
dc.contributor.authorKRISTENSEN, L. E.
hal.structure.identifierLaboratoire d'Astrophysique de Grenoble [LAOG]
dc.contributor.authorLARSSON, B.
hal.structure.identifierLaboratoire d'Astrophysique de Grenoble [LAOG]
dc.contributor.authorLIS, D.
dc.contributor.authorMCCOEY, C.
hal.structure.identifierLaboratoire d'Astrophysique de Grenoble [LAOG]
dc.contributor.authorMELNICK, G.
hal.structure.identifierINAF - Osservatorio Astronomico di Roma [OAR]
dc.contributor.authorNISINI, B.
hal.structure.identifierOnsala Space Observatory
dc.contributor.authorOLBERG, M.
hal.structure.identifierCentre d'étude spatiale des rayonnements [CESR]
dc.contributor.authorPARISE, B.
dc.contributor.authorPEARSON, J. C.
dc.contributor.authorPLUME, R.
hal.structure.identifierESO
dc.contributor.authorRISACHER, C.
dc.contributor.authorSANTIAGO, J.
hal.structure.identifierIstituto di Fisica dello Spazio Interplanetario [IFSI]
dc.contributor.authorSARACENO, P.
dc.contributor.authorTAFALLA, M.
dc.contributor.authorVAN KEMPEN, T. A.
dc.contributor.authorVISSER, R.
dc.contributor.authorWAMPFLER, S.
dc.contributor.authorYILDIZ, U. A.
dc.contributor.authorBLACK, J. H.
hal.structure.identifierLaboratoire de Radioastronomie [LRA]
dc.contributor.authorFALGARONE, E.
hal.structure.identifierLaboratoire d'Etude du Rayonnement et de la Matière en Astrophysique [LERMA]
hal.structure.identifierLaboratoire de Radioastronomie [LRA]
dc.contributor.authorGERIN, M.
dc.contributor.authorROELFSEMA, P.
dc.contributor.authorDIELEMAN, P.
dc.contributor.authorBEINTEMA, D.
dc.contributor.authorDE JONGE, A.
dc.contributor.authorWHYBORN, N.
hal.structure.identifierLaboratoire d'Astrophysique de Grenoble [LAOG]
dc.contributor.authorSTUTZKI, J.
hal.structure.identifierLaboratoire d'Astrophysique de Grenoble [LAOG]
dc.contributor.authorOSSENKOPF, V.
dc.date.created2010
dc.date.issued2010
dc.identifier.issn0004-6361
dc.description.abstractEnEarly results from the Herschel Space Observatory revealed the water cation H2O+ to be an abundant ingredient of the interstellar medium. Here we present new observations of the H2O and H2O+ lines at 1113.3 and 1115.2 GHz using the Herschel Space Observatory toward a sample of high-mass star-forming regions to observationally study the relation between H2O and H2O+ . Nine out of ten sources show absorption from H2O+ in a range of environments: the molecular clumps surrounding the forming and newly formed massive stars, bright high-velocity outflows associated with the massive protostars, and unrelated low-density clouds along the line of sight. Column densities per velocity component of H2 O+ are found in the range of 10^12 to a few 10^13 cm-2 . The highest N(H2O+) column densities are found in the outflows of the sources. The ratios of H2O+/H2O are determined in a range from 0.01 to a few and are found to differ strongly between the observed environments with much lower ratios in the massive (proto)cluster envelopes (0.01-0.1) than in outflows and diffuse clouds. Remarkably, even for source components detected in H2O in emission, H2O+ is still seen in absorption.
dc.language.isoen
dc.publisherEDP Sciences
dc.subject.enAstrophysics
dc.subject.enGalaxy Astrophysics
dc.title.enVariations in H2O+/H2O ratios toward massive star-forming regions
dc.typeArticle de revue
dc.identifier.doi10.1051/0004-6361/201015110
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Astrophysique stellaire et solaire [astro-ph.SR]
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Astrophysique stellaire et solaire [astro-ph.SR]
dc.identifier.arxiv1007.4370
bordeaux.journalAstronomy and Astrophysics - A&A
bordeaux.pageL34
bordeaux.volume521
bordeaux.peerReviewedoui
hal.identifierhal-00521348
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00521348v1
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