Turbulent convection and pulsational stability of variable stars - IV. The red edge of the δ Scuti instability strip

Details Turbulent convection and pulsational stability of variable stars - IV. The red edge of the δ Scuti instability strip Turbulent convection and pulsational stability of variable stars - IV. The red edge of the δ Scuti instability strip

Jun 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001mnras.324..243x&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 324, Issue 1, pp. 243-248.

Astronomy and Astrophysics

Astronomy

20

Convection, Stars: Oscillations, &Delta, Scuti

Scientific paper

Using a non-local time-dependent statistical theory of convection, we made a linear pulsational instability analysis for stars in the mass range 1.4-3.0Msolar. The results define a red edge for the δ Scuti instability strip, which fits the observational boundary very well. It is found that the dynamic coupling between convection and oscillation together with the turbulent viscosity are the two main damping mechanisms for low-temperature stars.

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