Interrupted mass loss on the asymptotic giant branch

Details Interrupted mass loss on the asymptotic giant branch Interrupted mass loss on the asymptotic giant branch

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...265l...5z&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 265, no. 1, p. L5-L8.

Astronomy and Astrophysics

Astrophysics

60

Giant Stars, Infrared Stars, Stellar Evolution, Stellar Mass Ejection, Variable Stars, Carbon Stars, Stellar Models

Scientific paper

We show that mass loss on the AGB is not a continuous process. Episodes of low mass loss rate, already known for carbon stars, are found to occur in oxygen-rich stars as well, suggesting that they constitute a general phenomenon. We propose that the mass loss depends on the phase of the thermal pulse cycle. A plausible physical mechanism indicates that mass loss peaks during a thermal pulse, and slows down or is interrupted during the interpulse phase. Episodes of low mass may coincide with decrease or cessation of variability.

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