Analytical Derivation of Pulsation Driven Mass Loss in Classical Cepheids

Details Analytical Derivation of Pulsation Driven Mass Loss in Classical Cepheids Analytical Derivation of Pulsation Driven Mass Loss in Classical Cepheids

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...211.2503n&link_type=abstract

American Astronomical Society, AAS Meeting #211, #25.03; Bulletin of the American Astronomical Society, Vol. 39, p.776

Astronomy and Astrophysics

Astronomy

Scientific paper

A modified version of the Castor, Abbot and Klein analysis for radiative driven mass loss, incorporating the effects of radial pulsation and shocks, is used to explore mass loss in Classical Cepheids. Applying the method to a sample of galactic Cepheids, the predicted mass loss rates are found to significantly enhanced relative to mass loss driven by radiation alone. Infrared excesses are predicted for circumstellar shells, formed by dust sublimating in the wind at a distance from the star where the temperature is less than 1500K. The IR excesses are consistent with analysis of IRAS observations and interferometric observations. The research was funded by the Walter John Helm OGSST and the Walter C. Sumner Memorial Fellowship.

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