2006年3月29日日全食时白光日冕的极化及天空极化效应

IF 0.8 4区物理与天体物理 Q4 ASTRONOMY & ASTROPHYSICS

Serbian Astronomical Journal Pub Date : 2019-01-01 DOI:10.2298/SAJ190620005M

V. L. Merzlyakov, T. Tsvetkov, L. Starkova, R. Miteva

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引用次数: 2

摘要

地面日全食观测仍然是日冕观测的关键方法。关于它的白光偏振程度的问题仍然没有答案。有假说认为，日冕某些区域的极化程度可能高于汤姆逊散射测定的最大理论预测值。我们展示了2006年3月29日日全食期间三个不同的小组所获得的白光日冕偏振观测。我们给出了天空的偏振如何影响极化日冕的亮度的解释，这取决于日全食期间的景观。此外，日冕的奇异极化点与太阳高度呈线性关系。

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Polarization of white-light solar corona and sky polarization effect during total solar eclipse on March 29, 2006

Ground-based total solar eclipse observations are still the key method for coronal investigations. The question about its white-light degree of polarization remains unanswered. There are hypotheses claiming that the degree of polarization in certain regions of the corona may be higher than the maximal theoretically predicted value determined by Thomson scattering. We present polarization of the white-light solar corona observations obtained by three different teams during the March 29, 2006 solar total eclipse. We give an interpretation on how the polarization of the sky impacts brightness of the polarized solar corona, depending on the landscape during the totality. Moreover, it is shown that the singular polarization points of the corona are in linear dependence with the height of the Sun above the horizon.

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来源期刊

Serbian Astronomical Journal ASTRONOMY & ASTROPHYSICS-

CiteScore

1.00

自引率

0.00%

发文量

审稿时长

12 weeks

期刊介绍： Serbian Astronomical Journal publishes original observations and researches in all branches of astronomy. The journal publishes: Invited Reviews - review article on some up-to-date topic in astronomy, astrophysics and related fields (written upon invitation only), Original Scientific Papers - article in which are presented previously unpublished author''s own scientific results, Preliminary Reports - original scientific paper, but shorter in length and of preliminary nature, Professional Papers - articles offering experience useful for the improvement of professional practice i.e. article describing methods and techniques, software, presenting observational data, etc. In some cases the journal may publish other contributions, such as In Memoriam notes, Obituaries, Book Reviews, as well as Editorials, Addenda, Errata, Corrigenda, Retraction notes, etc.