Mass Loss History of the AGB star, R Cas

Angela K. Speck (Univ. of Missouri); Hideyuki Izumiura (OAO/NAOJ); Hinako Fukushi (Univ. of Tokyo); Hiroyuki Mito (Kiso Obs.); Issei Yamamura (ISAS/JAXA); Mikako Matsuura (NAOJ); Noriyuki Matsunaga (NAOJ); Robert E. Stencel (Univ. of Denver); Toshihiko Tanabe (Univ. of Tokyo); Toshiya Ueta (Univ. of Denver)

arxiv: 0905.0750 · v1 · submitted 2009-05-06 · 🌌 astro-ph.GA

Mass Loss History of the AGB star, R Cas

Toshiya Ueta (Univ. of Denver) , Robert E. Stencel (Univ. of Denver) , Issei Yamamura (ISAS/JAXA) , Hideyuki Izumiura (OAO/NAOJ) , Yoshikazu Nakada (Univ. of Tokyo) , Mikako Matsuura (NAOJ) , Yoshifusa Ita (ISAS/NAOJ) , Toshihiko Tanabe (Univ. of Tokyo)

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Hinako Fukushi (Univ. of Tokyo) Noriyuki Matsunaga (NAOJ) Hiroyuki Mito (Kiso Obs.) Angela K. Speck (Univ. of Missouri)

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keywords extendedlossmassakarihistoryreportshellspitzer

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We report here on the discovery of an extended far-infrared shell around the AGB star, R Cassiopeia, made by AKARI and Spitzer. The extended, cold circumstellar shell of R Cas spans nearly 3 arcmin and is probably shaped by interaction with the interstellar medium. This report is one of several studies of well-resolved mass loss histories of AGB stars under AKARI and Spitzer observing programs labeled "Excavating Mass Loss History in Extended Dust Shells of Evolved Stars (MLHES)".

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Mass Loss History of the AGB star, R Cas

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