Skip to main content Accessibility help
×
Home

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

  • K. Justtanont (a1), S. Muller (a1), M. J. Barlow (a2), D. Engels (a3), D. A. García-Hernández (a4) (a5), M. A. T. Groenewegen (a6), M. Matsuura (a7), H. Olofsson (a1), D. Teyssier (a8), I. Marti-Vidal (a1), T. Khouri (a1), M. Van de Sande (a9), W. Homan (a9), T. Danilovich (a9), A. de Koter (a10), L. Decin (a9), L. B. F. M. Waters (a10) (a11), R. Stancliffe (a12), W. Vlemmings (a1), P. Royer (a9), F. Kerschbaum (a13), C. Paladini (a14), J. Blommaert (a9) and R. de Nutte (a9)...

Abstract

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.

Copyright

References

Hide All
Garca-Hernández, D. A., Zamora, O., Yagüe, A., et al. 2013, A&A, 555, L3
Justtanont, K., Muller, S., Barlow, M. J., et al. 2018, A&A, submitted
Justtanont, K., Teyssier, D., Barlow, M. J., et al. 2013, A&A, 556, A101
Karakas, A. I. & Lattanzio, J. C. 2014, PASA, 31, 30
MathJax
MathJax is a JavaScript display engine for mathematics. For more information see http://www.mathjax.org.

Keywords

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

  • K. Justtanont (a1), S. Muller (a1), M. J. Barlow (a2), D. Engels (a3), D. A. García-Hernández (a4) (a5), M. A. T. Groenewegen (a6), M. Matsuura (a7), H. Olofsson (a1), D. Teyssier (a8), I. Marti-Vidal (a1), T. Khouri (a1), M. Van de Sande (a9), W. Homan (a9), T. Danilovich (a9), A. de Koter (a10), L. Decin (a9), L. B. F. M. Waters (a10) (a11), R. Stancliffe (a12), W. Vlemmings (a1), P. Royer (a9), F. Kerschbaum (a13), C. Paladini (a14), J. Blommaert (a9) and R. de Nutte (a9)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed