VW Cygni: new photometric and polarimetric observations

被引:1
|
作者
Antonyuk, KA [1 ]
机构
[1] Crimean Astrophys Observ, UA-98409 Nauchnyi, Ukraine
来源
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER | 2004年 / 88卷 / 1-3期
关键词
binary stars; eclipsing stars; VW Cyg;
D O I
10.1016/j.jqsrt.2003.12.029
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
An analysis of linear polarization for an eclipsing variable star VW Cyg is performed. The dependence of polarization values on the phase of orbital period is derived. The wavelength dependence of polarization out-of-eclipse shows a superposition of two different mechanisms of polarization. We assume that one of them is interstellar polarization while the other one is scattering by electrons in the gas shell of the system. Assuming that the polarization caused by electron scattering does not depend on the wavelength and the wavelength dependence of the interstellar polarization fits the Serkowski law, one can derive the most probable parameters of both the components. It is shown that the proper polarization is 0.3 +/- 0.03%. The UBVRI photometry was also performed. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:3 / 7
页数:5
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