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Physical properties of solar chromospheric plages. III - Models based on Ca II and Mg II observationsSolar plages are modeled using observations of both the Ca II K and the Mg II h and k lines. A partial-redistribution approach is employed for calculating the line profiles on the basis of a grid of five model chromospheres. The computed integrated emission intensities for the five atmospheric models are compared with observations of six regions on the sun as well as with models of active-chromosphere stars. It is concluded that the basic plage model grid proposed by Shine and Linsky (1974) is still valid when the Mg II lines are included in the analysis and the Ca II and Mg II lines are analyzed using partial-redistribution diagnostics.
Document ID
19780065905
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Kelch, W. L.
(Joint Institute for Laboratory Astrophysics Boulder, Colo., United States)
Linsky, J. L.
(National Bureau of Standards Boulder, Colo., United States)
Date Acquired
September 3, 2013
Publication Date
June 1, 1978
Publication Information
Publication: Solar Physics
Volume: 58
Subject Category
Solar Physics
Report/Patent Number
PB-289015
Accession Number
78A49814
Funding Number(s)
CONTRACT_GRANT: NAS5-23274
CONTRACT_GRANT: NGL-06-003-057
Distribution Limits
Public
Copyright
Other

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