Corona during the total solar eclipse on March 20, 2015, and 24 cycle development-Reference-Cited by-同舟云学术

Corona during the total solar eclipse on March 20, 2015, and 24 cycle development

Published:2016-06-17 Issue:2 Volume:2 Page:3-11
ISSN:2412-4737
Container-title:Solnechno-Zemnaya Fizika
language:en
Short-container-title:

Author:

Язев Сергей¹²,Yazev Sergey³⁴,Мордвинов Александр¹,Mordvinov Aleksandr³,Дворкина-Самарская Антонина²,Dvorkina-Samarskaya Antonina⁴

Affiliation:

1. Институт солнечно-земной физики СО РАН

2. Иркутский государственный университет

3. Institute of Solar Terrestrial Physics SB RAS

4. Irkutsk State University

Abstract

We analyzed the structure of coronal features, using data on the March 20, 2015 total solar eclipse. The Ludendorff index characterizing the flattening of the corona is 0.09. The solar corona structure in the Northern and Southern hemispheres corresponds to the maximum and post-maximum phases of solar activity, respectively. The asynchronous development of mag-netic activity in the Sun’s Northern and Southern hemi-spheres caused a substantial asymmetry of coronal features observed at the reversal of polar magnetic fields in the current cycle. The polar ray structures in the Southern Hemisphere are associated with the polar cor-onal hole, while in the Northern Hemisphere a polar hole has not been formed yet. We examine the relation between large-scale magnetic fields and location of high coronal structures.

Publisher

Infra-M Academic Publishing House

Subject

Space and Planetary Science,Atmospheric Science,Geophysics

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