천문학회보 (The Bulletin of The Korean Astronomical Society)
- 제36권2호
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- Pages.104.2-104.2
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- 2011
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- 1226-2692(pISSN)
X-ray observation of the shocked red supergiant wind of Cassiopeia A
- Lee, Jae-Joon (KASI) ;
- Park, Sang-Wook (University of Texas at Arlington)
- 발행 : 2011.10.05
초록
We study X-ray characteristics of shocked ambient gas of the Galactic core-collapse supernova remnant Cas A. Using 1 Msec observation with Chandra X-ray Observatory, we identify thermal emissions from the shocked ambient gas along the outer boundary of the remnant. Our results show that Cas A is expanding into a circumstellar wind with a wind density n ~ 1
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