Pulsating subdwarf B stars: late stages of stellar evolution

Details Pulsating subdwarf B stars: late stages of stellar evolution Pulsating subdwarf B stars: late stages of stellar evolution

Jan 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004esasp.538..277b&link_type=abstract

In: Second Eddington Workshop: Stellar structure and habitable planet finding, 9 - 11 April 2003, Palermo, Italy. Edited by F. F

Mathematics

Logic

Stars: Evolved Stars, Subdwarfs, Pulsating Stars: Ec 14026, Stellar Evolution

Scientific paper

During the last 7 years, much attention has been focused on the subdwarf B stars, as it became obvious that they can bring interesting clues about the late stages of stellar evolution. On one hand, they can be a major element to explain the "UV upturn phenomenon" in the galaxies as their blue color can contribute significantly to the blue emission of these objects. On the other hand, they became an important subject for the asteroseismological community for 2 reasons. First the EC 14026 stars were discovered simultaneously from an observational and theoretical point of view, then two years ago, the LP-sdBVs brought a second wave of excitement to the field. We will present in this paper the current status of the two classes of pulsating subdwarf B stars, and we will summarize how Eddington will help us to go further in ther understanding.

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