Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004mast.conf..142g&link_type=abstract
Magnetic stars, Proceedings of the International Conference, held in the Special Astrophysical Observatory of the Russian AS, Au
Astronomy and Astrophysics
Astrophysics
Chemically Peculiar, Magnetic Fields, Β Crb
Scientific paper
A model of the magnetic field of the star β CrB is constructed by the method of the "Magnetic Charge Distribution". The magnetic field is described by superposition of two decentered dipoles, which are arranged in the equatorial plane perpendicularly to the axis and oppositely directed to the center of the star. The dipoles form an irregular quadrupole and produce on the surface four magnetic spots with a maximal magnetic field strength at the poles Bp = 14.5 kG. The angle of declination of the rotation axis to the line of sight has been ascertained by the quadrupole model to i = 13°. In consideration of all aspects the idea is advanced of very strong influence of inhomogeneous distribution of chemical elements on the measurable phase curves of the effective magnetic field. Apparently, the star has passed a convective phase in an early stage of evolution.
Gerth Ewald
Glagolevskij Yu. V.
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