Hot regions in solar flares produce X-radiation and microwaves by thermal processes. Recent X-ray data make it possible to specify the temperature and emission measure of the soft X-ray source, by using, for instance, a combination of the 1-8 A (peak response at about 2 keV) and the 0.5-3 ]k (peak r
Microwave, ultraviolet, and soft X-Ray observations of hale region 16898
β Scribed by Kiyoto Shibasaki; Franca Chiuderi-Drago; Mauro Melozzi; Cornelis Slottje; Ester Antonucci
- Publisher
- Springer
- Year
- 1983
- Tongue
- English
- Weight
- 933 KB
- Volume
- 89
- Category
- Article
- ISSN
- 0038-0938
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X-ray images from the AS&E telescope on Skylab are used to investigate coronal conditions in solar active regions during the 20-min periods preceding the X-ray onsets of small flares. The preflare or precursor phase is defined as a phase with a characteristic length or time scale significantly diffe
Simultaneous soft X-ray spectroscopic and broad band imaging observations of an active region have been analyzed together to determine the parameters which describe the coronal plasma. From the spectroscopic data, models of temperature-emission measure-elemental abundance have been constructed which