Photometry of the solar corona of March 7, 1970

Bappu, M. K. V. ; Bhattacharyya, J. C. ; Sivaraman, K. R. (1973) Photometry of the solar corona of March 7, 1970 Pramana - Journal of Physics, 1 (3). pp. 117-128. ISSN 0304-4289

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Isophotes obtained by equidensitometry techniques from four exposures of the March 7, 1970 corona are used for derivation of intensity distributions along the equator, poles, streamers and dark 'gaps' in the visible corona. The distributions differ from the van de Hulst curves for a maximum corona. The Kodaikanal measures agree well with the NRL measures of the outer corona made from a rocket coronagraph and together provide data from 1.2R to 8.0R along the solar equator. Radial intensity gradients for different position angles and the Ludendorff parameters obtained, characterize this corona as typical of the solar maximum.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Solar Corona; Solar Eclipse; Coronal Photometry
ID Code:37433
Deposited On:23 Apr 2011 09:51
Last Modified:17 May 2016 20:21

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