A New Approach to Modeling the Surface Magnetic Fields of Chemically Peculiar Stars

Details A New Approach to Modeling the Surface Magnetic Fields of Chemically Peculiar Stars A New Approach to Modeling the Surface Magnetic Fields of Chemically Peculiar Stars

Jul 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001arep...45..564k&link_type=abstract

Astronomy Reports, Volume 45, Issue 7, July 2001, pp.564-568

Astronomy and Astrophysics

Astronomy

3

Scientific paper

A reconstruction of the line-of-sight component and modulus of the surface-magnetic-field vector is proposed, using a model with artificial point sources of the magnetic field with “virtual” magnetic charges in the body of a star. This approach for the direct calculation of the field from the superposition of the potentials of individual magnetic charges enables the reconstruction of most possible configurations of the surface magnetic field of a star. Proper choice of the axis orientations for the three coordinate systems used makes it possible to obtain a simple representation for the vector components of the surface magnetic field. In a dipole approximation, the expression for the line-of-sight component of the magnetic field averaged over the visible disk of the star reduces to the form obtained in other studies.

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