The Relation of the Sunspot Magnetic Field and Penumbra-umbra Radius Ratio
Abstract
Indirect proportionality between the sunspot magnetic field BL and penumbra-umbra radius ratio k is described. The observed functions BL = f(k) are given using the data from 74 regular sunspots, observed from 1968 to 1976 and 15 regular sunspots observed in 1977. It is shown that the smaller value BL is observed in the regular sunspot with larger value k. This result is found to be in quantitative agreement with Saniga's alternative view of the sunspot phenomena (1990).
- Publication:
-
Bulletin of the Astronomical Institutes of Czechoslovakia
- Pub Date:
- October 1991
- Bibcode:
- 1991BAICz..42..316A
- Keywords:
-
- Penumbras;
- Solar Magnetic Field;
- Solar Physics;
- Sunspots;
- Umbras;
- Magnetic Flux;
- Solar Atmosphere;
- Solar Physics