Other
Scientific paper
Sep 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aspc..445..295u&link_type=abstract
Why Galaxies Care about AGB Stars II: Shining Examples and Common Inhabitants. Proceedings of a conference held at University Ca
Other
Scientific paper
IRAS and ISO observations have indicated that the extended dust shells of AGB stars could be explained by a simple model of a constant past mass outflow piling up at the interface with the interstellar medium (ISM). Recent Spitzer observations have shown that even outflows from AGB stars can induce shocks at the ISM-AGB wind interface, while a recent AKARI survey of the circumstellar envelopes of evolved stars have revealed far-IR structures resembling to the interface regions between the ISM and AGB winds in many objects. There have been observations made in other wavelengths (especially in the UV with GALEX) that corroborate these findings in the far-IR. New Herschel observations are expected to provide detailed views of these interface regions. Therefore, the extended dust shells of AGB stars should not only allow us to prove the mass-loss history of the parent AGB stars but also permit us to glimpse how the ejecta eventually merge with the ISM. In this review, I will summarize recent research developments made by observations with Spitzer, AKARI, and Herschel at the interface region between the circumstellar envelopes of AGB stars and the ISM.
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