ALMA discovery of a rotating SO/SO2 flow in HH212
We wish to constrain the possible contribution of a magnetohydrodynamic disk wind (DW) to the HH212 molecular jet. We mapped the flow base with ALMA Cycle 4 at 0.̋13 ~ 60 au resolution and compared these observations with synthetic DW predictions. We identified, in SO/SO2, a rotating flow that is wi...
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| Veröffentlicht in: | Astronomy and astrophysics (Berlin) 2017-11, Vol.607 |
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| container_title | Astronomy and astrophysics (Berlin) |
| container_volume | 607 |
| creator | Tabone, B. Cabrit, S. Bianchi, E. Ferreira, J. Pineau des Forêts, G. Codella, C. Gusdorf, A. Gueth, F. Podio, L. Chapillon, E. |
| description | We wish to constrain the possible contribution of a magnetohydrodynamic disk wind (DW) to the HH212 molecular jet. We mapped the flow base with ALMA Cycle 4 at 0.̋13 ~ 60 au resolution and compared these observations with synthetic DW predictions. We identified, in SO/SO2, a rotating flow that is wider and slower than the axial SiO jet. The broad outflow cavity seen in C34S is not carved by a fast wide-angle wind but by this slower agent. Rotation signatures may be fitted by a DW of a moderate lever arm launched out to ~40 au with SiO tracing dust-free streamlines from 0.05−0.3 au. Such a DW could limit the core-to-star efficiency to ≤50%. |
| doi_str_mv | 10.1051/0004-6361/201731691 |
| format | Article |
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We mapped the flow base with ALMA Cycle 4 at 0.̋13 ~ 60 au resolution and compared these observations with synthetic DW predictions. We identified, in SO/SO2, a rotating flow that is wider and slower than the axial SiO jet. The broad outflow cavity seen in C34S is not carved by a fast wide-angle wind but by this slower agent. Rotation signatures may be fitted by a DW of a moderate lever arm launched out to ~40 au with SiO tracing dust-free streamlines from 0.05−0.3 au. 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Such a DW could limit the core-to-star efficiency to ≤50%.</description><subject>Flow mapping</subject><subject>Fluid dynamics</subject><subject>Fluid flow</subject><subject>ISM: individual objects: HH212</subject><subject>ISM: jets and outflows</subject><subject>Magnetohydrodynamics</subject><subject>Molecular chains</subject><subject>Outflow</subject><subject>Rotation</subject><subject>stars: formation</subject><subject>Stellar winds</subject><subject>Sulfur dioxide</subject><issn>0004-6361</issn><issn>1432-0746</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNo9jV9LwzAUxYMoOKefwJeAz7W5-ds-lqGrUCmyiY8hbRPpnM1MOt2-vYWJT-fcw-_cg9AtkHsgAlJCCE8kk5BSAoqBzOEMzYAzmhDF5Tma_ROX6CrGzXRSyNgMQVE9F7jrY-u_bThi77DBwY9m7Id3vKrTVU2x2_of3A-4LCnQa3ThzDbamz-do9fHh_WiTKp6-bQoqqQHpSBxrM0oN03uOqaclVPT5lRCPuXctc3km7wzinDW5c7YzAjLoaGqc5IRo9gc3Z3-7oL_2ts46o3fh2Ga1JQIoRinGZ-o5ET1cbQHvQv9pwlHbcKHloopoTPypl8qKpcE1lqwX7dQUiM</recordid><startdate>20171101</startdate><enddate>20171101</enddate><creator>Tabone, B.</creator><creator>Cabrit, S.</creator><creator>Bianchi, E.</creator><creator>Ferreira, J.</creator><creator>Pineau des Forêts, G.</creator><creator>Codella, C.</creator><creator>Gusdorf, A.</creator><creator>Gueth, F.</creator><creator>Podio, L.</creator><creator>Chapillon, E.</creator><general>EDP Sciences</general><scope>BSCLL</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20171101</creationdate><title>ALMA discovery of a rotating SO/SO2 flow in HH212</title><author>Tabone, B. ; Cabrit, S. ; Bianchi, E. ; Ferreira, J. ; Pineau des Forêts, G. ; Codella, C. ; Gusdorf, A. ; Gueth, F. ; Podio, L. ; Chapillon, E.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i1771-f3c824ab9fd37fe6212e926193c84fcb926b9da7043d9fae8a5e41b27df630a73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Flow mapping</topic><topic>Fluid dynamics</topic><topic>Fluid flow</topic><topic>ISM: individual objects: HH212</topic><topic>ISM: jets and outflows</topic><topic>Magnetohydrodynamics</topic><topic>Molecular chains</topic><topic>Outflow</topic><topic>Rotation</topic><topic>stars: formation</topic><topic>Stellar winds</topic><topic>Sulfur dioxide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tabone, B.</creatorcontrib><creatorcontrib>Cabrit, S.</creatorcontrib><creatorcontrib>Bianchi, E.</creatorcontrib><creatorcontrib>Ferreira, J.</creatorcontrib><creatorcontrib>Pineau des Forêts, G.</creatorcontrib><creatorcontrib>Codella, C.</creatorcontrib><creatorcontrib>Gusdorf, A.</creatorcontrib><creatorcontrib>Gueth, F.</creatorcontrib><creatorcontrib>Podio, L.</creatorcontrib><creatorcontrib>Chapillon, E.</creatorcontrib><collection>Istex</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Astronomy and astrophysics (Berlin)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tabone, B.</au><au>Cabrit, S.</au><au>Bianchi, E.</au><au>Ferreira, J.</au><au>Pineau des Forêts, G.</au><au>Codella, C.</au><au>Gusdorf, A.</au><au>Gueth, F.</au><au>Podio, L.</au><au>Chapillon, E.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>ALMA discovery of a rotating SO/SO2 flow in HH212</atitle><jtitle>Astronomy and astrophysics (Berlin)</jtitle><date>2017-11-01</date><risdate>2017</risdate><volume>607</volume><issn>0004-6361</issn><eissn>1432-0746</eissn><abstract>We wish to constrain the possible contribution of a magnetohydrodynamic disk wind (DW) to the HH212 molecular jet. 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| identifier | ISSN: 0004-6361 |
| ispartof | Astronomy and astrophysics (Berlin), 2017-11, Vol.607 |
| issn | 0004-6361 1432-0746 |
| language | eng |
| recordid | cdi_proquest_journals_2055734284 |
| source | Bacon EDP Sciences France Licence nationale-ISTEX-PS-Journals-PFISTEX; EDP Sciences; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Flow mapping Fluid dynamics Fluid flow ISM: individual objects: HH212 ISM: jets and outflows Magnetohydrodynamics Molecular chains Outflow Rotation stars: formation Stellar winds Sulfur dioxide |
| title | ALMA discovery of a rotating SO/SO2 flow in HH212 |
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