An infrared view on the AGB evolution

Details An infrared view on the AGB evolution An infrared view on the AGB evolution

Oct 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aca....43..397s&link_type=abstract

Acta Astronomica, vol. 43, no. 4, p. 397-407

Astronomy and Astrophysics

Astronomy

2

Asymptotic Giant Branch Stars, Galactic Bulge, Infrared Stars, Stellar Evolution, Stellar Mass, Stellar Models, Variable Stars, Infrared Astronomy, Infrared Astronomy Satellite, Stellar Envelopes

Scientific paper

We present an analysis of the recent stellar evolution model for the Asymptotic Giant Branch made by Vassiliadis and Wood (1993). We find that their scenario is in qualitative agreement with the recent finding that the mass loss interruptions are a common behavior during the late stages of stellar evolution. It is also demonstrated that their model predictions for the evolution of a variable star with an initial mass of 1 solar mass are in agreement with the ratio of optically discovered Galactic Bulge variables over those detected by the Infrared Astronomy Satellite. We find, however, that their mass loss formula underestimates the mass loss rates during some stages of the evolution.

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