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arXiv 1004.3879astro-ph.SR
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太阳黑子光桥-光球层和日冕之间的桥梁?

Sunspot light-bridges - a bridge between the photosphere and the corona ?

S. Matthews, D. Baker, S. Vargas Domínguez

摘要:

最近对太阳黑子光桥的观测使人们对这一事实有了新的认识,即它们往往与显着的色球活动有关。特别是,已经确定了持续数天的色球喷流(Shimizu等人,2009年),有时与光球层的大规模下降流有关(Louis等人,2009年)。对这种活动的一种可能解释是在大气层低层中的重连。光桥还与TRACE的1600埃通带中的恒定亮度增强和1 MK环路的加热有关。利用EIS,SOT和STEREO EUVI的数据,我们调查的过渡区和低日冕的光桥和特定时期的色球活动的存在下的响应。

英文摘要:

Recent observations of sunspot light-bridges have shed new light on the fact that they are often associated with significant chromospheric activity. In particular chromospheric jets (Shimizu et al. 2009) persisting over a period of days have been identifies, sometimes associated with large downflows at the photospheric level (Louis et al. 2009). One possible explanation for this activity is reconnection low in the atmosphere. Light-bridges have also been associated with a constant brightness enhancement in the 1600 angstroms passband of TRACE, and the heating of 1 MK loops. Using data from EIS, SOT and STEREO EUVI we investigate the response of the transition region and lower corona to the presence of a light-bridge and specific periods of chromospheric activity.

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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