Variability and evolution in various classes of post-AGB stars

Details Variability and evolution in various classes of post-AGB stars Variability and evolution in various classes of post-AGB stars

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007an....328..848s&link_type=abstract

Astronomische Nachrichten, Vol.328, Issue 8, p.848

Astronomy and Astrophysics

Astronomy

Stars: Early-Type, Stars: Super-Giants, Post-Agb Stars

Scientific paper

We aim to compare properties of early-type post-asymptotic giant-branch (post-AGB) stars, including normal first-time B-type post-AGB stars, and extreme helium stars (EHes). Hipparcos photometry for 12 post-AGB stars and 7 EHe stars has been analyzed; 5 post-AGB stars are clearly variable. The Hipparcos data are not sufficiently sensitive to detect variability in any of the EHes.

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