| Issue |
EAS Publications Series
Volume 71-72, 2015
The Physics of Evolved Stars: A Conference Dedicated to the Memory of Olivier Chesneau
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|---|---|---|
| Page(s) | 65 - 70 | |
| Section | Winds, Mass Loss, Jets | |
| DOI | https://doi.org/10.1051/eas/1571012 | |
| Published online | 01 December 2015 | |
E. Lagadec, F. Millour and T. Lanz (eds)
EAS Publications Series, 71–72 (2015) 65-70
The Problematically Short Superwind of OH/IR Stars
1 KU Leuven, Instituut voor Sterrenkunde, Celestijnenlaan 200D 2401, 3001 Leuven, Belgium
2 Department of Earth and Space Sciences, Chalmers University of Technology, Onsala Space Observatory, 439 92 Onsala, Sweden
3 AlbaNova University Centre, Stockholm University, Department of Astronomy, 106 91 Stockholm, Sweden
4 Stockholm University Astrobiology Centre, 106 91 Stockholm, Sweden
The superwind is believed to be the tool with which stars with an intermediate main-sequence mass between 5 and 8 M⊙ shed most of their stellar mantle to evolve from the asymptotic giant branch (AGB) into the post-AGB and planetary-nebulae stages. For this to work, the superwind duration must be on the order of at least ten thousand years given a mass-loss rate of 10−4M⊙ per year. This contrasts heavily with recent, independent results indicating that the superwind duration may be shorter by an order of magnitude.
© EAS, EDP Sciences, 2015