Beat Cepheid Period Ratios from OPAL Opacities

Details Beat Cepheid Period Ratios from OPAL Opacities Beat Cepheid Period Ratios from OPAL Opacities

May 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aas...188.5909m&link_type=abstract

American Astronomical Society, 188th AAS Meeting, #59.09; Bulletin of the American Astronomical Society, Vol. 28, p.918

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the results of linear non-adiabatic pulsation models for intermediate-mass stars with metallicities typical of Milky Way, LMC, and SMC objects. A total of 1560 models of Milky Way Cepheids and 1470 models of LMC and SMC Cepheids have been analysed for mode excitation and pulsation period. We compare our results with the observed period ratios seen in 12 Milky Way Beat Cepheids and the 45 LMC Beat Cepheids discovered by the MACHO project. The probable range of period ratios for SMC Beat Cepheids is also discussed.

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