Density and temperature determination of neutral hydrogen in coronal structures
Identifieur interne : 005688 ( Main/Exploration ); précédent : 005687; suivant : 005689Density and temperature determination of neutral hydrogen in coronal structures
Auteurs : R. M. Bonnet [France] ; G. Tsiropoula [Grèce]Source :
- Solar Physics [ 0038-0938 ] ; 1982-01-01.
Abstract
Abstract: High-resolution filtergrams in Lα have been obtained with a rocket borne instrument and evidence several loop shaped structures which can be seen as absorption features over the solar surface. The optical thickness of these coronal structures is measured with respect to nearby unabsorbed disk features. Their shape and dimension being known from the images, the determination of the neutral hydrogen temperature and density is possible. It is found that temperatures below 105 K and densities of a few 104 hydrogen atoms cm−3 are compatible with the opacities observed in the structures.
Url:
DOI: 10.1007/BF00153467
Affiliations:
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