The detached dust shells of AQ Andromedae, U Antliae, and TT Cygni
- Author(s)
- Franz Kerschbaum, Djazia Ladjal, Roland Ottensamer, Martin A. T. Groenewegen, Marko Mecina, Joris A D L Blommaert, Bernhard Baumann, Leen Decin, Bart Vandenbussche, Christoffel Waelkens, Thomas Posch, Rik Huygen, Wim De Meester, Sara Regibo, Pierre Royer, Katrina Exter, Christophe Jean
- Abstract
Detached circumstellar dust shells are detected around three carbon variables using Herschel-PACS. Two of them are already known on the basis of their thermal CO emission and two are visible as extensions in IRAS imaging data. By model fits to the new data sets, physical sizes, expansion timescales, dust temperatures, and more are deduced. A comparison with existing molecular CO material shows a high degree of correlation for TT Cyg and U Ant but a few distinct differences with other observables are also found.
- Organisation(s)
- Department of Astrophysics
- External organisation(s)
- Katholieke Universiteit Leuven
- Journal
- Astronomy & Astrophysics
- Volume
- 518
- ISSN
- 0004-6361
- DOI
- https://doi.org/10.1051/0004-6361/201014633
- Publication date
- 2010
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 107003 History of natural sciences, 103003 Astronomy
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/63ca34b9-172b-4afd-ba42-e03a13384014