Statistics – Computation
Scientific paper
Nov 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985mnras.217..305m&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 217, Nov. 15, 1985, p. 305-315. SERC-supported research
Statistics
Computation
487
A Stars, B Stars, Computational Grids, F Stars, Stellar Gravitation, Stellar Temperature, Ubv Spectra, Abundance, Stellar Atmospheres, Stellar Models, Stellar Spectrophotometry, Surface Properties
Scientific paper
Synthetic colours and indices for uvbyβ photometry, calculated by Relyea & Kurucz and Schmidt from line-blanketed model stellar atmospheres by Kurucz, are compared with observed colours and indices for B, A and F stars of known Teff and log g. Adjustments are needed to bring synthetic uvby colours and β indices into agreement with observed values; these empirically corrected synthetic values are presented as two-dimensional (β, c0) or (a0, r*) grids which can be used to determine Teff and log g. The synthetic β indices appear insensitive to the metal abundance of a model atmosphere. Results for three Am binaries suggest that the grids are sufficiently insensitive to metal abundance to be used for determining Teff and log g for Am stars.
Dworetsky Michael M.
Moon Taeyoon
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