Filament eruption connected to photospheric activity.
Abstract
Two cases of activation of filaments that occured in regions of intense magnetic activity was studied. The simultaneous observations from Debrecen Observatory (white light and H alpha filtergram), and from Meudon Observatory (magnetogram, MSDP dopplergram and intensity maps in H alpha) gave a complementary set of data from which can be produced evidence of the influence of the photospheric magnetic field on the destabilization process of the filaments. On June 22, 1980, the eruption of the filament is associated with the motion of pores, which are manifestations of emerging flux knots. On September 3, 1980, the twisting motions in the filament are associated to the birth of a pore in its neighborhood. These observations are discussed.
- Publication:
-
NASA Conference Publication
- Pub Date:
- December 1986
- Bibcode:
- 1986NASCP2442..229S
- Keywords:
-
- Photosphere;
- Solar Flares;
- Solar Flux;
- Solar Magnetic Field;
- Solar Prominences;
- Sunspots;
- Doppler Effect;
- Filtergrams;
- H Alpha Line;
- Magnetic Signatures;
- Solar Physics;
- Spectrum Analysis;
- White Light Holography;
- Solar Physics;
- Solar Filaments:Formation