On the red edge of the RR Lyrae instability strip

Details On the red edge of the RR Lyrae instability strip On the red edge of the RR Lyrae instability strip

Dec 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981acasn..22..350x&link_type=abstract

Acta Astronomica Sinica, vol. 22, Dec. 1981, p. 350-356. In Chinese, with abstract in English.

Astronomy and Astrophysics

Astronomy

2

Cepheid Variables, Dynamic Stability, Stellar Models, Thermodynamic Coupling, Convective Flow, Helium, Nonadiabatic Conditions, Pulsed Radiation, Stellar Luminosity, Stellar Mass, Thermal Instability

Scientific paper

According to the time-dependent convection theory developed by Unno (1967), the thermodynamic coupling between radial pulsations and convection is studied. The growth rate for small-amplitude pulsation has been calculated in linear nonadiabatic approximation for 11 series of RR Lyrae models. The dependence of the red edge of their instability strip on the mass, luminosity, helium abundance and convective parameter has been investigated.

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