Chandra x-ray spectra of contact binaries

被引：0

作者：

Brickhouse, NS ^{[1
]}

Dupree, AK ^{[1
]}

Hoogerwerf, R ^{[1
]}

机构：

[1] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

来源：

PROCEEDINGS OF THE 13TH CAMBRIDGE WORKSHOP ON COOL STARS, STELLAR SYSTEMS AND THE SUN - PROCEEDINGS, VOLS 1 AND 2 | 2005年 / 560卷

关键词：

stars : coronae; stars : individual (44i Boo; VW Cep); stars : late-type;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present Chandra LETG/HRC-S spectra of the bright eclipsing contact binary 44i Boo. Chandra began observing the target on 22 Sept 2003 for an exposure time of 118.524 ks. This observation continuously covers 5.12 epochs of the binary system. Analysis of phase-binned spectra is compared with previous results from HETG/ACIS-S, which showed Doppler line shifts as a function of orbital phase (Brickhouse, Dupree, & Young 2001). We confirm the presence of the high latitude features found in 2000 in this remarkably stable corona. We expect these new data to provide additional information on the size, location, and variability of the high latitude emission. We also compare results with LETG/HRC-S spectra of the complementary contact binary system VW Cep.

引用

页码：457 / 460

页数：4

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