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arXiv 0904.4084astro-ph.SR
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XI Boo中X射线振荡的观测:恒星环中快速扭折模的证据

Observations of X-ray oscillations in XI Boo: Evidence of a fast kink mode in the stellar loops

J. C. Pandey, A. K. Srivastava

摘要:

本文首次报道了冷活动星XI Boo耀斑期间的X射线振荡观测结果。XMM-牛顿卫星的EPIC/MOS观测到XI Boo。用小波分析和周期图分析研究了X射线光变曲线。两种分析都清楚地显示了1019 s周期的振荡。我们解释这些振荡作为一个基本的快速扭结模式的磁声波。

英文摘要:

We report the observations of X-ray oscillations during the flare in a cool active star XI Boo for the first time. XI Boo was observed by EPIC/MOS of the XMM-Newton satellite. The X-ray light curve is investigated with wavelet and periodogram analyses. Both analyses clearly show oscillations of the period of 1019 s. We interpret these oscillations as a fundamental fast-kink mode of magnetoacoustic waves.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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