An empirical line-blanketing study of AM stars

Details An empirical line-blanketing study of AM stars An empirical line-blanketing study of AM stars

Oct 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974apj...193..125r&link_type=abstract

Astrophysical Journal, vol. 193, Oct. 1, 1974, pt. 1, p. 125-131. NASA-supported research.

Astronomy and Astrophysics

Astrophysics

4

A Stars, Abundance, Iron, Line Spectra, Stellar Spectra, Astronomical Photometry, Stellar Temperature, Tables (Data)

Scientific paper

Metallic line-blanketing coefficients have been measured over the wavelength range from 3800 to 4700 A in a sample of 20 Am and normal A stars. An expression for the logarithmic iron abundance has been calibrated in terms of effective temperature and a mean line-blocking coefficient. This makes it possible to determine the atmospheric iron abundance in sharp-lined Am and A stars with an accuracy of better than plus or minus 0.1 dex, using only line-blocking measurements and a photometric effective temperature.

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