Unraveling Disks in AGB Stars

Author(s)
Foteini Lykou, Josef Hron, Albert A. Zijlstra, Peter G. Tuthill, Barnaby R. M. Norris, Claudia Paladini, Markus Wittkowski, J. Kluska, E. Lagadec, Sofia Ramstedt, Matthias Maercker
Abstract

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.

Organisation(s)
Department of Astrophysics
External organisation(s)
The University of Sydney, Square Kilometre Array, Université Libre de Bruxelles, European Southern Observatory (Germany), University of Exeter, Université Côte d'Azur, Uppsala University, Chalmers University of Technology
Journal
EAS Publications Series
Volume
71-72
Pages
217-222
No. of pages
6
ISSN
1633-4760
DOI
https://doi.org/10.1051/eas/1571049
Publication date
12-2015
Austrian Fields of Science 2012
103003 Astronomy, 103004 Astrophysics
ASJC Scopus subject areas
Engineering(all), Astronomy and Astrophysics, Space and Planetary Science
Portal url
https://ucrisportal.univie.ac.at/en/publications/unraveling-disks-in-agb-stars(17df1db5-455b-47ec-9373-24a749608942).html