Effects of metallicity on (delta) Scuti star asteroseismology

Details Effects of metallicity on (delta) Scuti star asteroseismology Effects of metallicity on (delta) Scuti star asteroseismology

Mar 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998stin...9928340g&link_type=abstract

Technical Report, A half century of stellar pulsation interpretations - a tribute to Arthur N. Cox

Astronomy and Astrophysics

Astronomy

Metallicity, Variable Stars, Stellar Models, Astronomy, Scutum Constellation, Chemical Composition, Main Sequence Stars, Hydrogen, Stellar Structure, Evolution (Development), Stellar Mass

Scientific paper

In (delta) Scuti star seismology, most researchers use evolution and pulsation models assuming a solar element mixture and Z = 0.02 for preliminary determinations of stellar masses or evolutionary state from observed frequencies. Here the authors investigate the consequences of this assumption by considering the effects of metallicity changes in the models on their inferences of the internal structure of (delta) Scuti stars. They use the main- sequence (delta) Scuti star FG Vir, and the more evolved shell hydrogen burning star (delta) Scuti to illustrate their results.

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