Effective temperature and gravity from c(0) and beta indices for B-type stars

Details Effective temperature and gravity from c(0) and beta indices for B-type stars Effective temperature and gravity from c(0) and beta indices for B-type stars

Nov 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...251..106c&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 251, no. 1, Nov. 1991, p. 106-116.

Astronomy and Astrophysics

Astrophysics

34

B Stars, Stellar Gravitation, Stellar Temperature, Stellar Atmospheres, Stellar Composition

Scientific paper

A sample of nonsupergiant B-type stars of solar chemical composition has been analyzed for T(eff) and gravity differences due to the use of c(0) and beta indices from different photometric grids. The Moon and Dworetsky (1985) grid, as well as an extension of the grid, are found to yield T(eff)s closer to those derived with other methods than the Lester et al. (1986) grid; in addition, the former grid yields gravities that are closer to values in the literature than the latter grid. A modified version of the TEFFLOGG code of Moon (1985), which employs polynomial functions of the Stromgren indices, yields both T(eff) and gravity for the present sample of B-type stars.

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