OSO 8 observations of the K2 component of the CA II K line between the solar center and limb

Details OSO 8 observations of the K2 component of the CA II K line between the solar center and limb OSO 8 observations of the K2 component of the CA II K line between the solar center and limb

Apr 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980crasb.290..365d&link_type=abstract

Academie des Sciences (Paris), Comptes Rendus, Serie B - Sciences Physiques, vol. 290, no. 14, 1980, p. 365-367. In French. Cent

Physics

3

Calcium, Emission Spectra, K Lines, Oso-8, Solar Limb, Solar Spectra, Atmospheric Turbulence, Chromosphere, Faculae

Scientific paper

OSO 8 spectrometer measurements of the separation between emission peaks in the K2 Ca II line across the solar disk in quiet and active regions are presented. The center-to-limb variation in emission peak separation is found to differ slightly for quiet and facula regions at distances greater than 0.2 solar radii from the limb, in agreement with previous observations. For a facula located at the solar limb, however, the peak separation is observed to be up to 35 percent greater than in quiet regions, indicating the presence of a region of enhanced chromospheric turbulence surrounding the faculae.

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