Spectroscopic Variations Induced By Magnetic Forces

Details Spectroscopic Variations Induced By Magnetic Forces Spectroscopic Variations Induced By Magnetic Forces

Jun 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006rmxac..26q.178v&link_type=abstract

XI IAU Regional Latin American Meeting of Astronomy (Eds. L. Infante & M. Rubio) Revista Mexicana de Astronomía y Astrofísica (S

Astronomy and Astrophysics

Astronomy

Scientific paper

We compute theoretical He I line profiles by means of LTE models for the photosphere of B stars. In these models we have taken into account the effect of the Lorentz force in the equation of hydrostatic equilibrium following the procedure of Valyavin et al. (2004). We analyze the influence of a magnetic field on the intensity and the shape of the line profiles and discuss the determination of abundances in magnetic stars. This mechanism could explain the observed variations in the line profiles and the continuum flux of some He-variable stars, and it could be used to estimate the magnetic field strength.

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