GUAN ZhenBiao1; HU Zhongwei2; ZHAO HaiBin2; LIN QiSheng3; CHEN YiPing3; JIN Sheng2
Source Publicationchinesesciencebulletin
AbstractSolar corona is the outermost part of the solar atmosphere. Coronal activities influence space environment between the Sun and the Earth, space weather and the Earth itself. The total solar eclipse (TSE) is the best opportunity to observe the solar corona on ground. During the TSE 2008, a series of images of the corona and partial eclipse of solar disk were obtained using telescope and CCD camera. After image processing, preliminary results of coronal structure are given, and radial brightness profiles of the corona in directions of pole and equator of the Sun are measured. Though in solar activity minimum, the shape and structure of the corona are not symmetry. The equatorial regions are more extent than the polar one, and there are also larger differences between the east and west equatorial regions and between the south and north polar regions. Coronal streamers on east side of the equator, particularly the largest one in east-south direction, are very obvious. The coronal plume in south polar region consists of more polar rays than that in north polar region. These structures are also shown in other observations and data of SOHO. The radial brightness profiles in directions of pole and equator are similar to those of the Van de Hulst model in solar minimum, but there are a few differences due to coronal activity, which is shown in the isophote map of the corona.
Document Type期刊论文
Affiliation1.Department of Astronomy,Nanjing University
3.Lulin Observatory
Recommended Citation
GB/T 7714
GUAN ZhenBiao,HU Zhongwei,ZHAO HaiBin,et al. coronalstructureandbrightnessprofileofthetotalsolareclipseonaugust12008[J]. chinesesciencebulletin,2009,54(16):2905.
APA GUAN ZhenBiao,HU Zhongwei,ZHAO HaiBin,LIN QiSheng,CHEN YiPing,&JIN Sheng.(2009).coronalstructureandbrightnessprofileofthetotalsolareclipseonaugust12008.chinesesciencebulletin,54(16),2905.
MLA GUAN ZhenBiao,et al."coronalstructureandbrightnessprofileofthetotalsolareclipseonaugust12008".chinesesciencebulletin 54.16(2009):2905.
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