Phenomenological model of the antiflare star RZ PSC

Details Phenomenological model of the antiflare star RZ PSC Phenomenological model of the antiflare star RZ PSC

Jan 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981afz....17...87p&link_type=abstract

(Astrofizika, vol. 17, Jan.-Mar. 1981, p. 87-96.) Astrophysics, vol. 17, no. 1, July 1981, p. 47-52. Translation.

Physics

Optics

11

Electromagnetic Absorption, Stellar Models, Ubv Spectra, Variable Stars, Absorbers (Materials), Atmospheric Optics, Chromosphere, Phenomenology, Photosphere

Scientific paper

A model is proposed for explaining the light fading in stars of the Is(A) type. Photoelectric UBV observations of the antiflare star RZ Psc, made from 1972-1975, are used for the quantitative calculations. It is assumed that the fading is due to a hypothetical light-absorbing matter above the stars photosphere, and that the short-wavelength radiation observed in some antiflare stars arises in a region above this absorbing matter. The calculated indices B-V and U-B agreed well with the observed indices. The relative intensities of the star's photosphere are determined, as is the additional chromosphere radiation in the U, B, and V bands. The dependence of the absorption coefficient of the absorbing matter on the wavelength is found, and the values of maximum optical density are determined.

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