Impulsive solar x-ray bursts
Description
A set of 22 simple, impulsive solar flares, identified in the OSO-5 hard X-ray data, were analyzed together with coincident microwave and meterwave radio observations. The rise times and fall times of the X-ray bursts are found to be highly correlated and effectively equal, this result strongly suggesting a flare energizing mechanism that is reversible. The good time resolution available for these observations reveals that the microwave emission is influenced by an additional process, evident in the tendency of the microwave emission to peak later and decay more slowly than the symmetric X-ray bursts. Meterwave emission is observed in coincidence with the 5 events which show the strongest time correlation between the X-ray and microwave burst structure. This meterwave emission is characterized by U-burst radiation, indicating confinement of the flare source
Availability note (English)
MF available from INIS under the Report Number; Available from NTIS. PC A05/MF A01.
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Additional details
Publishing Information
- Imprint Pagination
- 76 p.
- Report number
- N--77-31062
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 9393580
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- BALMER LINES; EMISSION SPECTRA; HARD X RADIATION; MICROWAVE RADIATION; PULSE RISE TIME; PULSES; RADIOWAVE RADIATION; SOLAR FLARES; SOLAR RADIATION; SOLAR RADIO BURSTS; SOLAR X-RAY BURSTS
- Descriptors DEC
- ELECTROMAGNETIC RADIATION; IONIZING RADIATIONS; RADIATIONS; SOLAR ACTIVITY; SPECTRA; STELLAR RADIATION; TIMING PROPERTIES; X RADIATION
Optional Information
- Secondary number(s)
- NASA-TM-X--71379; X--684-77-202.