Line Profiles and Magnetic Fields in Massive Stars

VALLVERDÚ, R. E.; CIDALE, L. S.; ROHRMANN, R. D.

Cariló, Argentina

Workshop; Massive Stars: Fundamental Parameters and Circumstellar Interactions; 2006

Facultad de Ciencias Astronómicas y Geofísicas

Our aim is to analyze the influence of a magnetic field on the atmospheric structure of early B type stars. We study the behavior of the shape and intensity of He I line profiles, as well as of their equivalent widths, for different intensities of the magnetic field. We also analyze variations of the visual absolute magnitude, M_v, and color indexes, B - V and U - B, with the magnetic field strength.