Coordinated Einstein and IUE observations of a disparitions brusques type flare event and quiescent emission from Proxima Centauri
Coordinated Einstein and IUE observations of a disparitions brusques type flare event and quiescent emission from Proxima Centauri
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DOI：
10.1086/160866
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发表时间：
1983-04
期刊：
影响因子：
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通讯作者：
B. Haisch;J. Linsky;P. Bornmann;R. Stencel;S. Antiochos;L. Golub;G. Vaiana
中科院分区：
文献类型：
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作者：
B. Haisch;J. Linsky;P. Bornmann;R. Stencel;S. Antiochos;L. Golub;G. Vaiana
1980年8月，爱因斯坦成像粒子计数器在与IUE同时观测半人马座比邻星星星dM 5 e耀斑的5小时期间，观测到了一次主要的X射线耀斑。详细的X射线光变曲线，温度测定在不同的时间间隔，和紫外线通量之前，期间和之后的耀斑间接表明一个“双带耀斑”日珥爆发。计算出的日冕光度与辐射热光度之比约为太阳光度之比的100倍。Proxima Cen日冕分析的背景下，静态环路模型，根据它的结论是，不到6%的恒星表面似乎被覆盖的X射线发射活动区。
The Einstein Imaging Particle Counter observed a major X-ray flare in its entirety during a 5-hr period of simultaneous observations, with the IUE, of the dM5e flare star Proxima Centauri in August, 1980. The detailed X-ray light curve, temperature determinations during various intervals, and UV line fluxes obtained before, during, and after the flare indirectly indicate a 'two-ribbon flare' prominence eruption. The calculated ratio of coronal to bolometric luminosity for the event is about 100 times the solar ratio. The Proxima Cen corona is analyzed in the context of static loop models, in light of which it is concluded that less than 6% of the stellar surface seems to be covered by X-ray emitting active regions.