Measurement of the coronal electron temperature at the total solar eclipse on 1994 November 3.
Abstract
The coronal electron temperature was determined for the first time from the shape of weak depressions at 3900 Å and 4300 Å in the continuous coronal spectra. It was found that the coronal streamer has overall temperatures of about 1.5 - 1.7 MK, while the coronal hole has evidently lower temperature of 0.9 - 1.1 MK. No significant height variation of the temperature was found in the streamer, while the coronal hole shows evidence of increasing temperature with height. An acceleration of the expanding motion between 1.1 Rsun and 2.0 Rsun by ≡80 km s-1 was found in the streamer.
- Publication:
-
Theoretical and Observational Problems Related to Solar Eclipses
- Pub Date:
- 1997
- Bibcode:
- 1997ASIC..494...31I
- Keywords:
-
- Solar Eclipses: 1994 November 3;
- Solar Eclipses: Solar Corona;
- Electron Temperatures: Solar Corona