Magnetic Doppler Imaging of chemically peculiar stars

被引：0
|
作者：
Kochukhov, O [1 ]
Piskunov, N [1 ]
Bagnulo, S [1 ]
Landstreet, JD [1 ]
Sigut, TAA [1 ]
Petit, P [1 ]
Wade, GA [1 ]
机构：
[1] Uppsala Univ, Dept Space Phys & Astron, SE-75120 Uppsala, Sweden
来源：
SOLAR POLARIZATION 3 | 2003年 / 307卷
关键词：
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 discuss recent developments in the techniques of mapping magnetic topologies of chemically peculiar stars using high-resolution spectropolarimetric data and advanced inversion methods. Examples of application of the new magnetic Doppler imaging code to modelling circular polarization observations of the magnetic CP stars alpha(2) CVn and CS Vir are presented. Magnetic Doppler imaging analysis of the spectropolarimetric observations of the CP star 53 Cam has made it possible to achieve the first reconstruction of stellar magnetic topology using high-resolution spectra in all four Stokes parameters. The magnetic field of this star turns out to be considerably more complicated than can be represented by multipolar expansion of low degree.
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页码：549 / 554
页数：6
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