Reasons for the variability in the brightness of magnetic stars

Details Reasons for the variability in the brightness of magnetic stars Reasons for the variability in the brightness of magnetic stars

Mar 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975poast..23...21s&link_type=abstract

Postepy Astronomii, vol. 23, Jan.-Mar. 1975, p. 21-32. In Polish.

Astronomy and Astrophysics

Astronomy

Far Ultraviolet Radiation, Magnetic Stars, Stellar Luminosity, Stellar Spectrophotometry, Variable Stars, Abundance, Light Curve, Stellar Atmospheres, Stellar Temperature, Ultraviolet Photometry

Scientific paper

Recent magnetic star photometric data, especially those in the far ultraviolet, are discussed. It is shown that variations of effective temperature have no solid theoretical foundation and cannot account for the observed variations in brightness of magnetic stars. Neither can silicon patches alone be the cause of light variations. The most likely mechanism seems to be a combination of variable absorption in the far ultraviolet and variable blanketing in the whole spectrum, which are caused by nonuniform distribution of the various elements in the stellar atmosphere.

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