Determination of stellar ages from asteroseismology

Details Determination of stellar ages from asteroseismology Determination of stellar ages from asteroseismology

Jul 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...306l..37u&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 306, July 1, 1986, p. L37-L40.

Astronomy and Astrophysics

Astrophysics

97

Cepheid Variables, Chronology, Stellar Evolution, Stellar Oscillations, Plasma Diagnostics, Plasma Frequencies, Seismology, Stellar Models

Scientific paper

This Letter shows that measurements of the stellar analog of the solar 5 minute oscillations can permit the determination of the radius and age of isolated stars. The key frequencies of oscillation correspond to pairs of modes differing by two in the degree of the spherical harmonic describing the angular dependence of the motion and by one in the overtone order of the modes. The frequency pairs are very nearly degenerate, and adequate frequency resolution will require a nearly unbroken time sequence extending over 15 days.

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