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ALMA discovery of a rotating SO/SO$_2$ flow in HH212. A possible MHD disk wind?

dc.contributor.authorTABONE, B.
hal.structure.identifierLaboratoire d'Etude du Rayonnement et de la Matière en Astrophysique [LERMA]
dc.contributor.authorCABRIT, S.
dc.contributor.authorBIANCHI, E.
hal.structure.identifierGénétique du cancer et des maladies neuropsychiatriques [GMFC]
dc.contributor.authorFERREIRA, Jorge
hal.structure.identifierLaboratoire d'Etude du Rayonnement et de la Matière en Astrophysique [LERMA]
dc.contributor.authorPINEAU DES FORÊTS, G.
hal.structure.identifierIstituto Nazionale di Astrofisica [INAF]
dc.contributor.authorCODELLA, C.
hal.structure.identifierLaboratoire d'Etude du Rayonnement et de la Matière en Astrophysique [LERMA]
dc.contributor.authorGUSDORF, A.
hal.structure.identifierInstitut de RadioAstronomie Millimétrique [IRAM]
dc.contributor.authorGUETH, F.
hal.structure.identifierINAF - Osservatorio Astrofisico di Arcetri [OAA]
dc.contributor.authorPODIO, L.
hal.structure.identifierAMOR 2017
dc.contributor.authorCHAPILLON, E.
dc.date.issued2017
dc.identifier.issn0004-6361
dc.description.abstractEnWe wish to put tight constraints on the possible contribution of an MHD disk wind (DW) to the HH212 molecular jet. We use ALMA Cycle 4 to map the inner outflow at $0.13" \sim$ 60~au resolution, and compare with synthetic predictions for DW models. We identify in SO/SO$_2$ a rotating flow wider and slower than the axial SiO jet. The broad outflow cavity seen in C$^{34}$S is not carved by a fast wide-angle wind but by this slower agent. Rotation signatures may be fitted by a DW of moderate lever arm launched out to $\sim$ 40 au, with SiO tracing dust-free streamlines from 0.05-0.3 au. If indeed a DW, it could limit the core-to-star efficiency to $\leq 50\%$.
dc.language.isoen
dc.publisherEDP Sciences
dc.subject.enAstrophysics - Solar and Stellar Astrophysics
dc.subject.enAstrophysics - Astrophysics of Galaxies
dc.subject.enstars: formation
dc.subject.enISM: jets and outflows
dc.subject.enISM: individual objects: HH212
dc.title.enALMA discovery of a rotating SO/SO$_2$ flow in HH212. A possible MHD disk wind?
dc.typeArticle de revue
dc.identifier.doi10.1051/0004-6361/201731691
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Cosmologie et astrophysique extra-galactique [astro-ph.CO]
dc.identifier.arxiv1710.01401
bordeaux.journalAstronomy and Astrophysics - A&A
bordeaux.peerReviewedoui
hal.identifierhal-01612954
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01612954v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Astronomy%20and%20Astrophysics%20-%20A&A&rft.date=2017&rft.eissn=0004-6361&rft.issn=0004-6361&rft.au=TABONE,%20B.&CABRIT,%20S.&BIANCHI,%20E.&FERREIRA,%20Jorge&PINEAU%20DES%20FOR%C3%8ATS,%20G.&rft.genre=article


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