Spectrophotometric determination of the temperature of the cepheid SU Cassiopeiae

Details Spectrophotometric determination of the temperature of the cepheid SU Cassiopeiae Spectrophotometric determination of the temperature of the cepheid SU Cassiopeiae

Jul 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980ap%26ss..70..393j&link_type=abstract

Astrophysics and Space Science, vol. 70, no. 2, July 1980, p. 393-399.

Astronomy and Astrophysics

Astrophysics

6

Atmospheric Models, Cepheid Variables, Stellar Evolution, Stellar Luminosity, Stellar Spectrophotometry, Electrophotometry, Stellar Mass, Stellar Temperature

Scientific paper

The effective temperature of the short period cepheid SU Cas has been determined from a comparison of its spectral scans with appropriate model atmospheres. Using this temperature and an independent Wesselink radius determination, the luminosity of the star has been redetermined. The pulsation mass and the evolutionary mass of the star have been discussed. The evolutionary to pulsation mass ratio comes out to be greater than unity.

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