A potential asteroseismological test for convective overshooting theories

Details A potential asteroseismological test for convective overshooting theories A potential asteroseismological test for convective overshooting theories

Aug 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...248l..11d&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 248, no. 1, Aug. 1991, p. L11-L14.

Astronomy and Astrophysics

Astrophysics

68

Cepheid Variables, Seismology, Starquakes, Stellar Cores, Stellar Oscillations, Convection, Helium, Stellar Evolution, Stellar Models

Scientific paper

Attention is given to that mode excited by the opacity mechanism in Delta Scuti stars which is trapped in the region containing the outer part of the convective core and the chemically inhomogeneous zone behind the shrinking core. This mode evolves toward higher frequencies that exhibit the 'avoided crossing' with constitutive p-modes. It is suggested that this mode frequency's determination could furnish a useful indication of the extent of the overshooting from the convective core. Spaceborne observations yielding detailed periodograms for Delta Scuti variables are recommended.

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