Herschel Views on Stellar and Circumstellar Evolution

Details Herschel Views on Stellar and Circumstellar Evolution Herschel Views on Stellar and Circumstellar Evolution

May 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21620403w&link_type=abstract

American Astronomical Society, AAS Meeting #216, #204.03; Bulletin of the American Astronomical Society, Vol. 41, p.848

Astronomy and Astrophysics

Astronomy

Scientific paper

We review the first results of Herschel on stellar and circumstellar evolution.
- For main-sequence stars, PACS and SPIRE measurements of the debris disks surrounding Vega and Beta Pictoris are presented, revealing the disks with unprecedented spatial resolution at the peaks of their spectral energy distribution.
- Through imaging and spectroscopic studies, the mass loss mechanisms and histories during the final stages of stellar evolution are investigated. Imaging of the circumstellar environments of AGB stars enables a detailed discussion of the discontinuous nature of the mass loss processes which induce the final evolution. With their moderately high spectral resolution, PACS and SPIRE reveal spectacularly rich molecular diagnostics on the dynamics of and the chemistry in the environments of objects such as CW Leo and VY CMa.

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