Scanner observations of the classical Cepheids RT AUR and T VUL

Details Scanner observations of the classical Cepheids RT AUR and T VUL Scanner observations of the classical Cepheids RT AUR and T VUL

Mar 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983japa....4....1r&link_type=abstract

Journal of Astrophysics and Astronomy (ISSN 0250-6335), vol. 4, March 1983, p. 1-9.

Astronomy and Astrophysics

Astrophysics

3

Cepheid Variables, Stellar Atmospheres, Stellar Luminosity, Stellar Mass, Stellar Spectrophotometry, Stellar Temperature, Astrometry, Astronomical Catalogs, Interstellar Extinction, Radii, Scanners, Stellar Evolution

Scientific paper

The effective temperatures of the classical Cepheids RT Aur and T Vul have been determined by a comparison of their spectral scans with appropriate model atmospheres. The radii of the stars have been determined through the Wesselink method. Using these temperatures and the Wesselink radii, the luminosities of the stars have been determined. The pulsation masses and evolutionary masses of the stars have been calculated. The pulsation to evolutionary mass ratio is derived to be 0.85. Based on the effective temperatures at different phases of the stars a θe-(B-V)0 relationship is found.

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