White-Light Observations and Polarimetric Analysis of the Solar Corona During the Eclipse of 1 August 2008 |
| |
Authors: | V?I?Skomorovsky V?D?Trifonov G?P?Mashnich Y?S?Zagaynova Email author" target="_blank">V?G?FainshteinEmail author G?I?Kushtal S?A?Chuprakov |
| |
Institution: | 1.Institute of Solar Terrestrial Physics,Russian Academy of Sciences, Siberian Branch,Irkutsk,Russia |
| |
Abstract: | In order to study the solar corona during eclipses, a new telescope was constructed. Three coronal images were obtained simultaneously
through a single objective of the telescope as the coronal radiation passed through three polarizers (whose transmission directions
were turned 0°, 60°, and 120° in the chosen direction); one image was obtained without a polarizer. The telescope was used
to observe the solar corona during the eclipse of 1 August 2008. We obtained the distributions of polarization brightness,
K-corona brightness, the degree of K-corona polarization and the total polarization degree; the polarization direction, depending
on the latitude and radius in the plane of the sky, was also obtained. We calculated the radial distributions of electron
density depending on the latitude. The properties of all these distributions were compared for different coronal structures.
We determined the temperature of the coronal plasma in different coronal structures assuming hydrostatic equilibrium. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|