Hipparcos Luminosities and Asteroseismology

Details Hipparcos Luminosities and Asteroseismology Hipparcos Luminosities and Asteroseismology

2000-10-31

arxiv.org/abs/astro-ph/0010623v1

Astronomy and Astrophysics

Astrophysics

4 pages, LaTeX. Invited talk at IAU GA Joint Discussion 13 on "Hipparcos and the Luminosity Calibration of the Nearer Stars",

Scientific paper

Asteroseismology involves using the resonant frequencies of a star to infer details about its internal structure and evolutionary state. Oscillation frequencies are most useful when accompanied by accurate measurements of the more traditional stellar parameters such as luminosity and effective temperature. The Hipparcos catalogue provides luminosities with precisions of a few percent or better for many oscillating stars. I briefly discuss the importance of Hipparcos measurements for interpreting asteroseismic data on three types of oscillating stars: delta Scuti variables, rapidly oscillating Ap stars and solar-like stars. I also retract the endorsement I made during my talk of Trimble's (1995) suggestion to change the spelling of "asteroseismology".

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