The importance of solar white-light flares
โ Scribed by Donald F. Neidig
- Publisher
- Springer
- Year
- 1989
- Tongue
- English
- Weight
- 539 KB
- Volume
- 121
- Category
- Article
- ISSN
- 0038-0938
No coin nor oath required. For personal study only.
โฆ Synopsis
The basic results of white-light flare (WLF) photometric and spectrographic observations are reviewed. WLFs represent the most extreme density conditions in solar optical flares and arc similar to stellar flares in many respects. It is shown that WLFs originate in the low chromosphere and upper photosphere, and that their huge radiative losses remain difficult to explain within the context of known mechanisms of energy transport.
๐ SIMILAR VOLUMES
A white-light flare (WLF) was recorded on March 27, 1991 at Tashkent. The WLF occurred at the penumbra of a large, complex sunspot group. The energy released by the WLF per unit time was 2.4 โข 10 ~ erg s -~ .
We study the effect of chromospheric bombardment by an electron beam during solar flares. Using a semi-empirical flare model, we investigate energy balance at temperature minimum level and in the upper photosphere. We show that non-thermal hydrogen ionization (i.e., due to the electrons of the beam)