An interruption of the cooling of the coronal arch of 6/7 November 1980
Abstract
During the decay phase of the giant coronal arch, which appeared after the dynamic flare of 14:44 UT on 6 November 1980, the cooling of the arch was interrupted for a period of two hours from ~ 18 UT until ~ 20 UT. In the upper parts of the arch (above ~12×104 km) the temperature rose again. At lower altitudes the decline in temperature was only slowed down. The energy input was an increasing function of altitude and for the whole arch amounted to ~7×1029 erg. A thermal disturbance, formed after the dynamic flare low in the corona and subsequently rising upward, moves through the old arch in the same period. The reconnection which accompanies the coalescence of the magnetic field structures of the disturbance and the old arch is probably responsible for the energy release.
- Publication:
-
Advances in Space Research
- Pub Date:
- 1986
- DOI:
- 10.1016/0273-1177(86)90158-4
- Bibcode:
- 1986AdSpR...6f.271H
- Keywords:
-
- Cooling;
- Coronal Loops;
- Solar Temperature;
- Magnetic Field Reconnection;
- Solar Flares;
- Solar Physics