Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979a%26a....78..305c&link_type=abstract
Astronomy and Astrophysics, vol. 78, no. 3, Oct. 1979, p. 305-311.
Astronomy and Astrophysics
Astrophysics
114
Astronomical Photometry, B Stars, Galactic Evolution, Stellar Luminosity, Stellar Temperature, Binary Stars, Calibrating, H Lines, Interstellar Extinction, K Lines, Star Clusters
Scientific paper
Based on color differences measuring the Balmer jump, but with different sensitivity to the accumulated effects of hydrogen and H and K lines, a method of luminosity and effective temperature (T eff) calibration for B-type stars is established in the Geneva system. The references for calibration rest on star cluster distances properly adjusted to the Hyades modulus and on Code's et al. (1976) effective temperatures based on measurements of angular stellar diameters and absolute UV, visible and IR fluxes. The calibration is essentially independent of interstellar reddening and allows a clear recognition of stellar peculiarities. The effects of unresolved binaries and rotation are also considered, and a comparison with uvby-beta results is made.
Cramer Noel
Maeder Andre
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