Radiative energy output of the 5 September 1973 flare
Abstract
Measurements of the radiative energy output of the solar flare of Sept. 5, 1973, over a wavelength range of more than ten decades, from below 1 A to above 1 m are presented. Observations of soft X-rays (0.5-20 A), XUV and EUV lines (171-1863 A) and EUV continua (1400-1960 A), H alpha radiation, visible lines and continua (3700-8700 A) and radio emission (centimeter to meter wavelengths) were obtained concurrently by Skylab and ground-based instruments. Estimates of power output at flare maximum are obtained for the observed wavelengths with uncertainty of at least half an order of magnitude, due to corresponding uncertainties in EUV and visible fluxes. Taking into account energy radiated at unobserved wavelengths and the characteristic time of the best-reduced data (the soft X-ray), calculations indicate a total radiated flare energy of approximately 4 x 10 to the 29th erg.
- Publication:
-
Skylab Solar Workshop II
- Pub Date:
- 1980
- Bibcode:
- 1980sfsl.work..451C
- Keywords:
-
- Radiation Measurement;
- Solar Flares;
- Solar Physics;
- Solar Radiation;
- H Alpha Line;
- Light (Visible Radiation);
- Radiant Flux Density;
- Radio Emission;
- Skylab Program;
- Solar X-Rays;
- Ultraviolet Radiation;
- Solar Physics