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The detached dust shells of AQ Andromedae, U Antliae, and TT Cygni
Kerschbaum, F.; Ladjal, D.; Ottensamer, R.; Groenewegen, M.A.T.; Mecina, M.; Blommaert, J.A.D.L.; Baumann, B.; Decin, L.; Vandenbussche, B.; Waelkens, C.; Posch, T.; Huygen, E.; De Meester, W.; Regibo, S.; Royer, P.; Exter, K.; Jean, C. (2010). The detached dust shells of AQ Andromedae, U Antliae, and TT Cygni. Astron. Astrophys. 518: L140. https://dx.doi.org/10.1051/0004-6361/201014633
In: Astronomy & Astrophysics (Les Ulis). EDP Sciences: Les Ulis. ISSN 0004-6361; e-ISSN 1432-0746, meer
Peer reviewed article  
Beschikbaar in  Auteurs 
Author keywords
    stars: AGB and post-AGB / stars: carbon / stars: evolution / stars: mass-loss / infrared: stars
Auteurs  Top 
  • Kerschbaum, F.
  • Ladjal, D.
  • Ottensamer, R.
  • Groenewegen, M.A.T.
  • Mecina, M.
  • Blommaert, J.A.D.L.
  • Baumann, B.
  • Decin, L.
  • Vandenbussche, B.
  • Waelkens, C.
  • Posch, T.
  • Huygen, E.
  • De Meester, W.
  • Regibo, S.
  • Royer, P.
  • Exter, K., meer
  • Jean, C.
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.
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