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ALMA spectrum of the extreme OH/IR star OH 26.5+0.6

Justtanont, Kay, 1965 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Muller, Sebastien, 1976 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Barlow, Mike (author)
University College London (UCL)
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Engels, D. (author)
Universität Hamburg,University of Hamburg
García-Hernández, D. A. (author)
Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
Groenewegen, M. A. T. (author)
Royal Observatory of Belgium
Matsuura, M. (author)
Cardiff University
Olofsson, Hans, 1952 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Teyssier, D. (author)
European Space Astronomy Centre (ESAC)
Marti-Vidal, Ivan, 1980 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Khouri, Theo, 1985 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Van De Sande, M. (author)
Katholieke Universiteit Leuven
Homan, W. (author)
Katholieke Universiteit Leuven
Danilovich, Taissa, 1987 (author)
Katholieke Universiteit Leuven
de Koter, A. (author)
Decin, L. (author)
Katholieke Universiteit Leuven
Waters, Lbfm (author)
Netherlands Institute for Space Research (SRON)
Stancliffe, R. J. (author)
Universität Bonn,University of Bonn
Vlemmings, Wouter, 1974 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Royer, P. (author)
Katholieke Universiteit Leuven
Kerschbaum, F. (author)
Universität Wien,University of Vienna
Paladini, C. (author)
European Southern Observatory Santiago
Blommaert, Jadl (author)
Katholieke Universiteit Leuven
De Nutte, R. (author)
Katholieke Universiteit Leuven
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 (creator_code:org_t)
2019
2019
English.
In: Proceedings of the International Astronomical Union. - 1743-9213 .- 1743-9221. ; 14, s. 436-437
Related links:
https://research.cha...
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https://doi.org/10.1...
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  • Conference paper (peer-reviewed)
Abstract Subject headings
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  • We present ALMA band 7 data of the extreme OH/IR star, OH 26.5+0.6. In addition to lines of CO and its isotopologues, the circumstellar envelope also exhibits a number of emission lines due to metal-containing molecules, e.g., NaCl and KCl. A lack of C18O is expected, but a non-detection of C17O is puzzling given the strengths of H217O in Herschel spectra of the star. However, a line associated with Si17O is detected. We also report a tentative detection of a gas-phase emission line of MgS. The ALMA spectrum of this object reveals intriguing features which may be used to investigate chemical processes and dust formation during a high mass-loss phase.

Subject headings

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

Keyword

stars: late-type
stars: individual (OH 26.5+0.6)
circumstellar matter
stars: AGB and post-AGB
stars: abundances

Publication and Content Type

kon (subject category)
ref (subject category)

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