The heating of the temperature minimum region in solar flares — A reassessment
✍ Scribed by A. Gordon Emslie; Marcos E. Machado
- Publisher
- Springer
- Year
- 1979
- Tongue
- English
- Weight
- 320 KB
- Volume
- 64
- Category
- Article
- ISSN
- 0038-0938
No coin nor oath required. For personal study only.
✦ Synopsis
As a sequel to the work by Machado et al. (1978), we discuss and evaluate the suggestions made by these authors on how to possibly reconcile the observed temperature enhancements at temperatureminimum levels in solar flares with some form of theoretical heating mechanism. After establishing the H-LTE assumption used by Machado et al., we then consider EUV irradiation, and joule heating by steady currents, as heating mechanisms. We find that, unless there are strong inhomogeneities associated with either mechanism, neither can reasonably be reconciled with observations. It is concluded that detailed, high resolution (both spatial and temporal) measurements are necessary to further our understanding of the flare process at temperature-minimum levels.
📜 SIMILAR VOLUMES
Shortly after the occurrence of the impulsive spikes of the two-ribbon flare of May 21, 1980, a temperature analysis of the X-ray emitting flare plasma showed the presence of a low-temperature component [n = 15 • 101~ cm-3; T = 20 x 106 K] and a high-temperature component [n = 2 • 101~ cm 3; T = 40
Observations of impulsive solar flare X-rays > 10 keV by the OGO-5 sa.telIite and the measurements of energetic solar electrons made with the Explorer-35 and Explorer-41 (IMP-5) satellites during the period March 1968-September 1969 have been analyzed in order to determine the ion density in the X-r
It was shown by Zheleznyakov and Zlotnik (1980a, b) that in complex configurations of solar magnetic fields (in hot loops above the active centres, in neutral current sheets in the preflare phase, in hot X-ray kernels in the initial flare phase) a system of cyclotron lines in the spectrum of microwa