Slow x-ray bursts and chromospheric flares with filament disruption
Technical Report
·
OSTI ID:4150568
The data from OGO-5 and OSO-7 x-ray experiments have been analyzed to study six chromospheric flares with filament disruption associated with slow thermal x-ray bursts. Filament activation accompanied by a slight x-ray enhancement precedes the first evidence of H alpha flare by a few minutes. Rapid increase of the soft x-ray flux is accompanied by a sudden brightening of the filament when viewed on-band H alpha. Thereafter the bright chromospheric strands reach their maximum brightness with maximum x-ray flux. Any plateau or slow decay phase in the x-ray flux is accompanied by a quieting in filament activity and even by filament re-appearance. The height of the disrupted prominence is proportional to the soft x-ray flux for the August 3, 1970 limb occulted event. (auth)
- Research Organization:
- California Inst. of Tech., Pasadena (USA)
- NSA Number:
- NSA-33-003812
- OSTI ID:
- 4150568
- Report Number(s):
- N--75-17281; NASA-CR--142151; BBSO--0141
- Country of Publication:
- United States
- Language:
- English
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