Physical properties of solar chromospheric plages. III - Models based on CA II and MG II observations

Details Physical properties of solar chromospheric plages. III - Models based on CA II and MG II observations Physical properties of solar chromospheric plages. III - Models based on CA II and MG II observations

Jun 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978soph...58...37k&link_type=abstract

Solar Physics, vol. 58, June 1978, p. 37-45.

Physics

27

Atmospheric Models, Chromosphere, Faculae, Line Shape, Solar Atmosphere, Solar Physics, Solar Spectra, Abundance, Calcium, Line Spectra, Magnesium, Metal Ions, Stellar Models

Scientific paper

Solar 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.

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