Simultaneous Measurements of EUV and Soft X-Ray Solar Flare Emission
Abstract
Broadband sensors aboard the Naval Research Laboratory's SOLRAD 11 satellites measured solar emission in the 0.5 to 3 Å, 1 to 8 Å, 8 to 20 Å, 100 to 500 Å, 500 to 800 Å, and 700 to 1030 Å bands between March 1976 and October 1979. Measurements of EUV and soft X-ray emission from a large number of solar flares were obtained. Although solar flare measurements in the soft X-ray bands are continuously made and used as a standard of a flare's geophysical significance, direct measurements of flare EUV emission are quite rare. We present measurements of the X-ray and EUV emission from several flares with special emphasis on the relative EUV response associated with flares in different categories determined by 1 to 8 Å soft X-ray flux. An example of a flare exhibiting an impulsive (nonthermal) phase is included.
- Publication:
-
Solar Physics
- Pub Date:
- November 1981
- DOI:
- 10.1007/BF00151295
- Bibcode:
- 1981SoPh...74..265H
- Keywords:
-
- Extreme Ultraviolet Radiation;
- Radiation Measurement;
- Satellite Observation;
- Solar Flares;
- Solar Radiation;
- Solar X-Rays;
- Broadband;
- Energy Conversion Efficiency;
- Radiant Flux Density;
- Radiation Detectors;
- Solar Activity Effects;
- Solar Sensors;
- Solar Physics;
- Flare;
- Simultaneous Measurement;
- Solar Flare;
- Naval Research;
- Naval Research Laboratory