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arXiv 1105.0779astro-ph.SR
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2008年8月1日日食期间日冕的特征

Characteristic features of the solar corona during the eclipse of 1 August 2008

V. I. Skomorovsky, V. D. Trifonov, G. P. Mashnich, Yu. S. Zagaynova, V. G. Fainshtein, G. I. Kushtal, S. A. Chuprakov

摘要:

为了研究日食期间的日冕,建造了一台新的望远镜。当日冕辐射通过三个偏振器(其传输方向通过0^{ \circ }、60^{ \circ }和120^{ \circ }转向选定的方向)时,从望远镜的一个物镜同时获得三个日冕图像;还获得了一个没有偏振器的图像。该望远镜在2008年8月1日日食期间被用来观测日冕。我们得到了偏振亮度,K-日冕亮度,K-日冕偏振度和总偏振度的分布;偏振方向取决于纬度和半径的天空平面也得到了。我们计算了电子密度随纬度的径向分布。比较了不同冠状结构下这些分布的性质。在流体静力学平衡的假设下,我们测定了不同日冕结构中日冕等离子体的温度。

英文摘要:

In order to study the solar corona during eclipses, a new telescope was constructed. Three coronal images were obtained simultaneously from one objective of the telescope as the coronal radiation passed through three polarisers (whose transmission directions were turned through 0^{\circ}, 60^{\circ}, and 120^{\circ} to the chosen direction); one image without polariser was also obtained. The telescope was used to observe the solar corona during the eclipse of 1 August 2008. We obtained distributions of the polarisation brightness, K-corona brightness, degree of the K-corona polarisation and total polarisation degree; polarisation direction depending on the latitude and radius in the plane of the sky was also obtained. We calculated radial distributions of electron density, depending on the latitude. Properties of all these distributions in different coronal structures were compared. We determined temperature of coronal plasma in different coronal structures on the assumption that there is a hydrostatic equilibrium.

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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