Ref: ASTROimport-447

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.

published in Astronomy and Astrophysics, 518, pp. L140 (2010)

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. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA.Table 1 and Figs. 3 to 5 are only available in electronic form at http://www.aanda.org

DOI: 10.1051/0004-6361/201014633
Links: link

The record appears in these collections:
Royal Observatory of Belgium > Astronomy & Astrophysics
Science Articles > Peer Reviewed Articles

 Record created 2016-07-01, last modified 2016-07-06