Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26a...293..446s&link_type=abstract
Astronomy and Astrophysics 293, 446-456 (1995)
Astronomy and Astrophysics
Astrophysics
72
Line: Profiles, Stars: Atmospheres, Binaries: General, Stars: Early-Type, Stars: Fundamental Parameters
Scientific paper
We present an investigation into the determination of fundamental values of T_eff_ and logg. A re-evaluation of the fundamental values of T_eff_ determined by Code et al. using modern flux measurements is presented, but there are no significant changes. A determination of fundamental values of T_eff_ for four binary systems with fundamental logg values has been performed. Medium-resolution Hβ profiles of the fundamental stars have been obtained and compared to theoretical profiles in order to provide estimates of the parameters that have not been obtained in a fundamental manner. We have calculated a table of synthetic β indices which explicitly include the effects of metal-line blocking. We find that these β indices are in good agreement with the photometric values. A comparison of theoretical uvby colours is also presented, and found to be in very good agreement with the photometric colours.
Dworetsky Michael M.
Smalley Barry
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