Smalley, B. & Dworetsky, M.M., 1991, The effective temperatures of
late A and early F stars from Balmer line profiles. In: Evolution
of Stars: The Photospheric Abundance Connection, Posters presented at IAU
Symposium 145, eds. Michaud, G., Tutukov, A. & Bergevin, M.,
University of Montreal, p. 47 - 48.
We have obtained the effective temperatures of 50
late A and early F stars, including several Am stars, from theoretical fits to
their Hbeta and Hgamma Balmer line profiles. Values of Teff obtained from
the Balmer lines have been compared to those found by using empirically
calibrated uvby photometry and to those found by fitting model atmosphere
flux distributions to observed optical and ultraviolet spectrophotometry. We
find very good agreement with the semi-empirically calibrated (beta, c0)
grid of Moon & Dworetsky (1985), but the spectrophotometric methods are in
general seriously affected by metallicity effects.