The ultraviolet energy distributions of late A stars

Details The ultraviolet energy distributions of late A stars The ultraviolet energy distributions of late A stars

Mar 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...244..938b&link_type=abstract

Astrophysical Journal, Part 1, vol. 244, Mar. 15, 1981, p. 938-946.

Astronomy and Astrophysics

Astrophysics

12

A Stars, Late Stars, Metallic Stars, Spectral Energy Distribution, Stellar Spectra, Stellar Spectrophotometry, Ultraviolet Spectra, Absorption Spectra, Abundance, Atmospheric Models, European Space Agency, Iue, Line Spectra, Stellar Atmospheres, Stellar Rotation

Scientific paper

Observed late A star energy distributions for the wavelength range 1400-2500 A are compared. No difference is found between energy distributions of Am stars and those of normal slowly rotating A stars. The fluxes of rapidly rotating stars, however, appear to be increased for wavelengths smaller than 1530 A; this cannot be understood as an effect of pole heating or reduced gravity. In addition, the comparison of the UV energy distributions with model atmosphere energy distributions of Kurucz indicates some problems with the theoretical Si I absorption edges at 1530 A.

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