2010A&A...518L.140K

Query : 2010A&A...518L.140K

2010A&A...518L.140K - Astronomy and Astrophysics, volume 518, L140-140 (2010/7-2)

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. and JEAN C.

Abstract (from CDS):

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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Journal keyword(s): stars: AGB and post-AGB - stars: carbon - stars: evolution - stars: mass-loss - infrared: stars

Simbad objects: 7

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Number of rows : 7
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 V* AQ And C* 00 27 31.6830716856 +35 35 14.495266104   11.3 9.90     C-N5+ 113 0
2 IRC +10216 C* 09 47 57.40632 +13 16 43.5648           C9,5e 2343 0
3 V* U Ant C* 10 35 12.8510147472 -39 33 45.324020448 15.32 8.22 5.38 3.18 1.86 C-N3 153 0
4 V* U Hya C* 10 37 33.2729535 -13 23 04.352923 13.29 7.51 4.82 3.05 1.78 C-N5 302 0
5 V* Y CVn C* 12 45 07.8260815656 +45 26 24.926308404 14.03 7.41 4.87 3.12 1.74 C-N5 477 0
6 V* R Hya Mi* 13 29 42.7801586466 -23 16 52.751628992 7.26 6.58 4.97 2.27 -0.15 M6-9e 488 0
7 V* TT Cyg C* 19 40 57.0158460384 +32 37 05.756696400   10.43 10.20     C-N5- 201 0

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