Stellar ages from asteroseismology: a few examples

Details Stellar ages from asteroseismology: a few examples Stellar ages from asteroseismology: a few examples

Jun 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009iaus..258..443v&link_type=abstract

The Ages of Stars, Proceedings of the International Astronomical Union, IAU Symposium, Volume 258, p. 443-448

Astronomy and Astrophysics

Astronomy

1

Stars: Atmospheres, Interiors, Fundamental Parameters, Oscillations, Techniques: Spectroscopic

Scientific paper

Asteroseismology is a powerful tool to derive stellar ages, masses, gravities, radii, etc. Precise determinations of these parameters need deep analyses for each individual stars. Approximate theories are not efficient enough. Here I present results for two stars, μ Arae and ι Hor, which have both been observed during eight nights with the HARPS spectrograph in La Silla. I also show that important constraints can be obtained on core overshooting using the same techniques.

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