Warm gas around AGB stars

Details Warm gas around AGB stars Warm gas around AGB stars

Nov 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000esasp.456..155y&link_type=abstract

ISO beyond the peaks: The 2nd ISO workshop on analytical spectroscopy. Eds. A. Salama, M.F.Kessler, K. Leech & B. Schulz. ESA-SP

Physics

6

Stars: Agb And Post-Agb, Stars: Atmospheres, Stars: Late-Type, Infrared: Stars

Scientific paper

The impact of the ISO/SWS on the study of AGB stars is reviewed. The ISO/SWS has provided high quality, intermediate resolution spectra covering a wide infrared wavelength range. These data enable us, for the first time, to perform an extensive study of the outer atmosphere and inner circumstellar regions of AGB stars. Many new and unexpected features hidden by the terrestrial atmosphere are detected, which raise new questions. We here particularly focus on the detection of dioxides in the O-rich stars, of C3, C2H2, and HCN in carbon stars, and of atomic / ionic fine-structure lines. We discuss the interpretation of these results and list problems to be solved.

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