Physics
Scientific paper
May 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990soph..127...11s&link_type=abstract
Solar Physics (ISSN 0038-0938), vol. 127, May 1990, p. 11-27.
Physics
11
Absorption Spectra, Continuous Spectra, Line Spectra, Solar Granulation, Solar Spectra, Calcium, H Lines, K Lines, Solar Physics, Solar Temperature, Spectrograms
Scientific paper
Temperature and velocity structures above granules and intergranular lanes were studied on spectrograms covering Ca II H and K lines. In agreement with earlier results, it was confirmed more quantitatively that there appear two kinds of bright continua, one in the outer wings (granular continuum) and the other in the inner wings (temporarily called K0-continuum) of Ca II H and K lines, and that these two kinds of bright continua are located more or less in a complementary fashion. Further, it was found that the bright K0-continuum is well associated with higher central residual intensity of absorption lines. These facts suggest that, in the upper photosphere, there are high temperature regions in the intergranular lanes. Motions above granular regions are essentially upwards, whereas those of intergranular regions are predominantly downwards, and in the uppermost photosphere the motions become more random.
Hiei Eijiro
Nakagomi Yoshiteru
Suemoto Zenzaburo
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