Physics
Scientific paper
Feb 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984soph...90..303k&link_type=abstract
Solar Physics (ISSN 0038-0938), vol. 90, Feb. 1984, p. 303-314.
Physics
31
Chromosphere, Fine Structure, Photosphere, Solar Activity, Brightness Distribution, Faculae, H Alpha Line
Scientific paper
A comparative study was done on the bright fine structure in the upper photosphere and in the lower chromosphere of an active region. The results are shown in the following: (a) The bright points in the H-alpha wing are cospatial to the facular points, which confirms the result of Wilson (1981). (b) Some points bright in the H-alpha wing are associated with the facular granules which have larger sizes than the facular points. (c) The brightness enhancement in the H-alpha wing is positively correlated to the enhancement in the blue continuum. However, the correlation is not so strong. (d) The moustache points are also cospatial to the facular features. (e) The geometrical shape of a moustache point is like a funnel and diverging upward in the upper photospheric and the lower chromospheric levels. Some discussions are given on the nature of the heating mechanism of the fine structure based upon these results.
Kitai Reizaburo
Müller Reto
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