The influence of the Lorentz force on line profiles in early-type magnetic stars

被引：0
|
作者：
Vallverdu, R. E. [1 ]
Cidale, L. S. [1 ]
Rohrmann, R. D. [1 ]
机构：
[1] Natl Univ La Plata, Fac Ciencias Astron Geofis, RA-1900 La Plata, Argentina
来源：
Active OB-Stars: Laboratories for Stellar and Circumstellar Physics, Proceedings | 2007年 / 361卷
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D O I：
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中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We have computed 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, Kochukhov, & Piskunov (2004). We analyze the influence of a magnetic field on the line profiles. This mechanism can explain the variations in line profile and the stability of the continuum flux of some Hevariable stars. We discuss the determination of abundances in magnetic stars.
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页码：103 / 109
页数：7
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