The Hα characteristics of hard X-ray bursts.
Abstract
The following results are obtained from the examination of 50 H-alpha flares. All flares with HXRBS are detectable from the emission of H-alpha + or - 2 A. They have at least two H-alpha kernels located in the opposite polarity regions. The H-alpha brightenings start earlier than HXRBS, while the H-alpha peaks, which correspond to the spikes of HXRBS very well, come later than that of HXRBS by several seconds. If the count rates of HXRBS are more than 1000, the kernels of H-alpha +2 A cover the penumbra; if the count rates are less than 200, the kernels do not cover the penumbra.
- Publication:
-
Chinese Journal of Space Science
- Pub Date:
- October 1986
- DOI:
- 10.11728/cjss1986.04.243
- Bibcode:
- 1986ChJSS...6..243S
- Keywords:
-
- H Alpha Line;
- Solar Flares;
- Solar Spectra;
- Solar X-Rays;
- Bursts;
- Solar Magnetic Field;
- Sunspots;
- Solar Physics;
- H Alpha:Solar X-Ray Bursts;
- Solar Flares:X Rays;
- Solar X-Ray Bursts:H Alpha;
- X Rays:Solar Flares