Theoretical B-V color indices and bolometric corrections for hot horizontal branch stars

Details Theoretical B-V color indices and bolometric corrections for hot horizontal branch stars Theoretical B-V color indices and bolometric corrections for hot horizontal branch stars

Apr 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979a%26a....74..195r&link_type=abstract

Astronomy and Astrophysics, vol. 74, no. 2, Apr. 1979, p. 195-200.

Astronomy and Astrophysics

Astrophysics

5

Atmospheric Models, Bolometers, Color, Stellar Atmospheres, Stellar Models, Abundance, Chemical Composition, Globular Clusters, Indexes (Ratios), Spectral Energy Distribution

Scientific paper

Several grids of model atmospheres appropriate to blue horizontal-branch stars are computed with log g between 2.5 and 5.5. B-V color indices and bolometric corrections are calculated from detailed flux distributions in order to obtain a homogeneous set of relations for different chemical compositions. The dependence of B-V color index and bolometric correction on chemical composition, effective temperature, and surface gravity is derived. The derived relations are applied to theoretical zero-age horizontal branches and compared with observational data on globular clusters.

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