White light flares seen from the spectroscopic observations and the direct images
Abstract
White light flares are classified into three types from the form of the bright region and time coincidence with a hard X-ray burst: impulsive, gradual, and diffuse types. The impulsive type shows a good correlation between the brightness change and hard X-ray flux, the gradual one appears in a gradual phase of a flare. The bright region is compact in both types. The diffuse one, however, appears in an extended area at an impulsive phase.
- Publication:
-
Advances in Space Research
- Pub Date:
- 1986
- DOI:
- 10.1016/0273-1177(86)90149-3
- Bibcode:
- 1986AdSpR...6f.227H
- Keywords:
-
- Solar Flares;
- Solar Spectra;
- Visible Spectrum;
- Brightness;
- Continuous Spectra;
- Solar X-Rays;
- Solar Physics