Publication Date:
2019-07-12
Description:
The limitations of the Carpenter et al. (1985) C II intercombination multiplet method of determining the density and geometric extent of red giant chromospheres are presently tested through observation of the C II 2325 A emission of two K-type supergiants whose empirical model chromospheres have been derived by high-resolution IUE observations at eclipse phases. While the observed C II emission fluxes are well reproduced, much of this emission originates in the high-density lower chromosphere.
Keywords:
ASTROPHYSICS
Type:
Astronomy and Astrophysics (ISSN 0004-6361); 202; 1-2
Format:
text
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