Study of Paschen hydrogen lines and the CA II infrared triplet in the spectrum of the magnetic star beta CrB. II - Variation of the physical conditions in the atmosphere of the star

Details Study of Paschen hydrogen lines and the CA II infrared triplet in the spectrum of the magnetic star beta CrB. II - Variation of the physical conditions in the atmosphere of the star Study of Paschen hydrogen lines and the CA II infrared triplet in the spectrum of the magnetic star beta CrB. II - Variation of the physical conditions in the atmosphere of the star

Jul 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980afz....16..483p&link_type=abstract

(Astrofizika, vol. 16, July-Sept. 1980, p. 483-489.) Astrophysics, vol. 16, no. 3, Jan. 1981, p. 285-288. Translation.

Astronomy and Astrophysics

Astrophysics

H Lines, Infrared Spectra, Magnetic Stars, Paschen Series, Stellar Atmospheres, Stellar Spectra, Absorption Spectra, Balmer Series, Calcium, Magnetic Field Configurations, Magnetic Flux, Stellar Magnetic Fields

Scientific paper

It is noted that the variability of the equivalent widths of the hydrogen absorption lines and the Ca II lines in the spectrum of beta-CrB has previously been investigated. There it was shown that a direct correlation exists between the intensity of the hydrogen lines and the modulus of the effective magnetic field intensity of the star; the Ca II lines, however, were shown to vary in antiphase. An analysis of the behavior of the hydrogen lines of the Paschen and Balmer series and the lines of the infrared Ca II triplet is used here as the basis for a phenomenological model of temperature nonuniformities over the surface of beta-CrB, these being intimately related to the magnetic field configuration.

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