A discussion of Cepheid masses

Details A discussion of Cepheid masses A discussion of Cepheid masses

May 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980cpsp.book...69c&link_type=abstract

In NASA. Goddard Space Flight Center Current Probl. in Stellar Pulsation Instabilities p 69-95 (SEE N80-25229 15-90)

Astronomy and Astrophysics

Astronomy

1

Astrometry, Cepheid Variables, Stellar Mass, Variable Stars, Mapping, Periodic Variations, Pulses, Stellar Envelopes, Stellar Evolution, Stellar Luminosity, Stellar Temperature

Scientific paper

Masses and compositions of Cepheids are essential to map the places in the Hertzsprung-Russell diagram where various radial pulsation modes occur. Luminosity observations and stellar evolution theory give masses for Cepheids which range from 10 percent to a factor of four more than those given by pulsation theory. Combining the evolution and pulsation theories, a theoretical mass was determined using only the period and an approximate surface effective temperature. The ratio of the theoretical to evolutionary masses averaged 0.99 + or - 0.07 for 16 Cepheids.

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