The system of electric currents and magnetic field structure in active regions.
Abstract
The magnetic field structure of two solar active regions was investigated by comparing the observed magnetic field vector with the computed one in the framework of a potential model. Results indicate the existence of a global electric current distribution over the entire area of the active region. The observed magnetic field exceeds the potential field in strength only in the central part of the transverse magnetic field humps with a maximum field strength exceeding 200 G. This feature of the observed magnetic field is connected with the presence of local currents. The energy of the magnetic field of the global current amounts to 10 to the 32nd erg, which corresponds to the energy of the most intense flares.
- Publication:
-
Izvestiya Ordena Trudovogo Krasnogo Znameni Krymskoj Astrofizicheskoj Observatorii
- Pub Date:
- 1987
- Bibcode:
- 1987IzKry..76..147A
- Keywords:
-
- Electric Current;
- Solar Activity;
- Solar Magnetic Field;
- Chromosphere;
- Current Distribution;
- Error Analysis;
- Solar Corona;
- Solar Physics;
- Magnetic Fields:Solar Active Regions;
- Solar Active Regions:Electric Fields;
- Solar Active Regions:Magnetic Fields