The nature of light variations of the helium strong chemically peculiar star HD 37776

被引：0
|
作者：
Krticka, J. [1 ]
Mikulasek, Z. [1 ]
Zverko, J. [2 ]
Ziznovsky, J. [2 ]
机构：
[1] Masaryk Univ, Inst Theoret Phys & Astrophys, Kotlarska 2, CS-61137 Brno, Czech Republic
[2] Slovak Acad Sci, Inst Astron, Tatranska Lomnica 05960, Slovakia
来源：
ACTIVE OB-STARS: LABORATORIES FOR STELLAR AND CIRCUMSTELLAR PHYSICS, PROCEEDINGS | 2007年 / 361卷
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中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We calculated spectral energy distribution of the helium strong chemically peculiar star HD 37776 using adequate model atmospheres. We show that the chemical peculiarity influences the stellar energy distribution. Consequently, spots of peculiar chemical composition on the surface of a rotating star may cause detectable light variations of the star. However, the observed light variations are not likely caused by an uneven surface distribution of helium, but may be due to spots of metals (mainly carbon).
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页码：454 / +
页数：2
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