1. Evolutionary aspects of the solar active regions
- Creator:
- Stepanyan, N. N. and Antalová, A.
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- astrophysics, solar active regions, and observations
- Language:
- Czech
- Description:
- Simultaneous observations of the H-alpha and Ca II K floccular lines show that during the first three days of the newly formed flocculi the temperature grows gradually, while the density is practically constant. During the following days an increase in density is observed, The phase of increasing density does not occur in the case of faint flocculi. The K-line analysis of the six newly - formed sunspots indicates that the average cooling upward velocity equals 15 ms”' . An increase in sunspot induction was observed at the time of the flares (46 spots, Fig. 5).
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public