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High-resolution Expanded Very Large Array Image of Dimethyl Ether (CH3)2O in Orion-KL

hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
hal.structure.identifierUniversité Sciences et Technologies - Bordeaux 1 [UB]
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
dc.contributor.authorFAVRE, C.
dc.contributor.authorWOOTTEN, H. A.
dc.contributor.authorREMIJAN, A. J.
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
hal.structure.identifierUniversité Sciences et Technologies - Bordeaux 1 [UB]
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
dc.contributor.authorBROUILLET, N.
dc.contributor.authorWILSON, T. L.
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
hal.structure.identifierUniversité Sciences et Technologies - Bordeaux 1 [UB]
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
dc.contributor.authorDESPOIS, D.
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
hal.structure.identifierUniversité Sciences et Technologies - Bordeaux 1 [UB]
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
hal.structure.identifierEuropean Southern Observatory [ESO]
dc.contributor.authorBAUDRY, Alain
dc.date.created2011
dc.date.issued2011
dc.identifier.issn2041-8205
dc.description.abstractEnWe report the first subarcsecond (0farcs65 × 0farcs51) image of the dimethyl ether molecule, (CH3)2O, toward the Orion Kleinmann-Low nebula. The observations were carried at 43.4 GHz with the Expanded Very Large Array (EVLA). The distribution of the lower energy transition 61, 5-60, 6, EE (E u = 21 K) mapped in this study is in excellent agreement with the published dimethyl ether emission maps imaged with a lower resolution. The main emission peaks are observed toward the Compact Ridge and Hot Core southwest components, at the northern parts of the Compact Ridge and in an intermediate position between the Compact Ridge and the Hot Core. A notable result is that the distribution of dimethyl ether is very similar to that of another important larger O-bearing species, the methyl formate (HCOOCH3), imaged at a lower resolution. Our study shows that higher spectral resolution (WIDAR correlator) and increased spectral coverage provided by the EVLA offer new possibilities for imaging complex molecular species. The sensitivity improvement and the other EVLA improvements make this instrument well suited for high sensitivity, high angular resolution, and molecular line imaging.
dc.language.isoen
dc.publisherBristol : IOP Publishing
dc.subject.enISM: individual objects: Orion-KL
dc.subject.enISM: jets and outflows
dc.subject.enISM: molecules
dc.title.enHigh-resolution Expanded Very Large Array Image of Dimethyl Ether (CH3)2O in Orion-KL
dc.typeArticle de revue
dc.identifier.doi10.1088/2041-8205/739/1/L12
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.arxiv1105.3204
bordeaux.journalThe Astrophysical journal letters
bordeaux.pageL12
bordeaux.volume739
bordeaux.peerReviewedoui
hal.identifierhal-00594184
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00594184v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=The%20Astrophysical%20journal%20letters&rft.date=2011&rft.volume=739&rft.spage=L12&rft.epage=L12&rft.eissn=2041-8205&rft.issn=2041-8205&rft.au=FAVRE,%20C.&WOOTTEN,%20H.%20A.&REMIJAN,%20A.%20J.&BROUILLET,%20N.&WILSON,%20T.%20L.&rft.genre=article


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