On the Need for a Routine Coronagraphic Active-Prominence Patrol.
Abstract
Routine observations of active solar prominences by means of small-size coronagraphs equipped with birefringent broad-bandpass filters are discussed as a means of gathering coronal data unavailable by other means. The usual method of obtaining prominence evolution data as a by-product of routine flare patrol observations is shown to be limited to observations of the less active prominences, due to the extreme line-of-sight velocities of the most active prominences which are often Doppler shifted past the bandpass of the narrowband filters employed. Prominence features requiring investigation are discussed, including electromagnetic emission, kinematics, dynamics and magnetic fields. The need for routine coronagraphic active-prominence patrols is concluded, and an actual patrol underway is outlined.
- Publication:
-
IAU Colloq. 44: Physics of Solar Prominences
- Pub Date:
- 1979
- Bibcode:
- 1979phsp.coll..278R
- Keywords:
-
- Birefringence;
- Coronagraphs;
- Solar Corona;
- Solar Prominences;
- Doppler Effect;
- Radiation;
- Solar Flares;
- Solar Physics