First phase of active regions and their relation to the chromospheric network

Details First phase of active regions and their relation to the chromospheric network First phase of active regions and their relation to the chromospheric network

Sep 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974soph...38..127b&link_type=abstract

Solar Physics, vol. 38, Sept. 1974, p. 127-131.

Physics

19

Chromosphere, Faculae, Magnetic Flux, Solar Activity, Fine Structure, Photosphere, Solar Atmosphere, Solar Granulation, Solar Magnetic Field

Scientific paper

An analysis of 63 young active regions shows that they originate exclusively on the borders of the chromospheric cells. In most cases they do not produce pores or spots, but always 'arch filament systems' and chromospheric faculae. The 'arch filament systems' evolve along the cell border, they are rooted on the network and not in the interior of the chromospheric cells. The subphotospheric magnetic flux seems to reach the photosphere in units of 10 to the 19th Mx. About 3 hours after the first 'arch filaments' appear, pores evolve on the cell border. The pores and spots are probably formed by local aggregations of the emerging flux tubes.

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