WFRF:(Torrelles J. M.)
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- Alves, F. O.Universität Bonn,University of Bonn (author)
The magnetic field of IRAS 16293-2422 as traced by shock-induced H2O masers
- Article/chapterEnglish2012
Publisher, publication year, extent ...
- 2012
Numbers
- LIBRIS-ID:oai:research.chalmers.se:53b45adf-901e-4757-9d41-ff4ea9ab7105
- https://doi.org/10.1017/S1743921312006679DOI
- https://research.chalmers.se/publication/165348URI
Supplementary language notes
- Language:English
- Summary in:English
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Notes
- H2O masers are important magnetic field tracers in very high density gas. We show one of the first magnetic field determinations at such high density in a low-mass protostar: IRAS 16293-2422. We used the Very Large Array (VLA) to carry out spectro-polarimetric observations of the 22 GHz Zeeman emission of H2O masers. A blend of at least three maser features can be inferred from our data. They are excited in zones of compressed gas produced by shocks between the outflows ejected by this source and the ambient gas. The post-shock particle density is in the range 1 - 3 × 109 cmt−3, and the line-of-sight component of the magnetic field is estimated as ~ 113 mG. The outflow dynamics is likely magnetically dominated.
Subject headings and genre
- NATURVETENSKAP Fysik Astronomi, astrofysik och kosmologi hsv//swe
- NATURAL SCIENCES Physical Sciences Astronomy, Astrophysics and Cosmology hsv//eng
- ISM: magnetic fields
- ISM: individual: IRAS 16293-2422
- stars: formation
- masers
- polarization
Added entries (persons, corporate bodies, meetings, titles ...)
- Vlemmings, Wouter,1974Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)wouterv (author)
- Girart, J. M.Universitat Autonoma de Barcelona (UAB) (author)
- Torrelles, J. M.Universitat de Barcelona,University of Barcelona (author)
- Universität BonnChalmers tekniska högskola (creator_code:org_t)
Related titles
- In:Proceedings of the International Astronomical Union8:5287, s. 74-781743-92131743-9221
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