Studies of the Prominence-Corona Transition Zone from Rocket Ultraviolet Spectra of the March 1970 Eclipse
Abstract
Slitless VUV spectra of the eclipsed Sun were obtained from a rocket experiment for the first time during the 1970 eclipse. The spatially resolved spectra of a quiescent prominence in the wavelength range 900 Å-2200 Å consist of emission lines from ions formed in the temperature range 3.5 × 104k-3.2 × 105k. The spectral intensities have been interpreted in terms of physical parameters which indicate a transition zone of shell-like layers, the inner the cooler and thinner, the outer the hotter and more extended. The transition zone is about 3 km thick for a model thread of 2000 km in diameter.
- Publication:
-
Solar Physics
- Pub Date:
- December 1975
- DOI:
- 10.1007/BF00158455
- Bibcode:
- 1975SoPh...45..351Y
- Keywords:
-
- Rocket Sounding;
- Solar Corona;
- Solar Prominences;
- Solar Spectra;
- Ultraviolet Spectra;
- Far Ultraviolet Radiation;
- Rocket-Borne Instruments;
- Solar Eclipses;
- Solar Physics;
- Physical Parameter;
- Wavelength Range;
- Transition Zone;
- Emission Line;
- Spectral Intensity