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Paper: Cool Environments Around Evolved Massive Stars as Seen by AKARI
Volume: 418, AKARI, a Light to Illuminate the Misty Universe
Page: 443
Authors: Marston, A. P.; Morris, P.
Abstract: As very massive stars evolve, they are expected to pass through several evolutionary stages towards their expected end as supernovae. The precise evolutionary path of massive stars of various masses above 25 solar masses is still a topic of debate. An excellent probe of the evolution of evolved massive stars, such as Wolf-Rayet stars, is their circumstellar environment. In particular, knowledge of the amount of mass loss, timescales for mass loss and likely prior evolutionary status of these stars potentially leave their imprint on the surrounding gas. In these preliminary results, we present AKARI FIS observations of the environments of Wolf-Rayet stars which attempt to find the cool and massive component of the expelled material from earlier mass-loss phases.
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