| Issue |
EAS Publications Series
Volume 71-72, 2015
The Physics of Evolved Stars: A Conference Dedicated to the Memory of Olivier Chesneau
|
|
|---|---|---|
| Page(s) | 217 - 222 | |
| Section | Disks | |
| DOI | https://doi.org/10.1051/eas/1571049 | |
| Published online | 01 December 2015 | |
E. Lagadec, F. Millour and T. Lanz (eds)
EAS Publications Series, 71–72 (2015) 217-222
Unraveling Disks in AGB Stars
1 Institut für Astronomie, Universität Wien, Austria
2 Jodrell Bank Centre for Astrophysics, UK
3 Sydney Institute for Astronomy, Australia
4 University of Exeter, UK
5 Institut d*Astronomie et d*Astrophysique, Univ. Libre de Bruxelles, Belgium
6 Observatoire de la Côte d*Azur, Nice, France
7 European Southern Observatory, Germany
8 Uppsala Universitet, Sweden
9 Onsala Space Observatory, Sweden
It is commonly accepted that asymmetries found in the post-AGB stars and planetary nebulae should originate as early as during the AGB phase. We present results from our high-angular resolution observing programs, with an aperture masking technique on the VLT, of a sample of evolved stars that were known to present asymmetries at larger spatial scales (e.g. jets, torii and/or bipolar nebulae). Disk-like structures have been found in the vicinity of at least two of these stars.
© EAS, EDP Sciences, 2015