Meterwave observations of a coronal hole.
Abstract
We present meterwave maps showing a coronal hole at 30.9, 50.0, and 73.8 MHz using the Clark Lake Radioheliograph in October 1984. The coronal hole seen against the disk at all three frequencies shows interesting similarities to, and significant differences from its optical signatures in He Iλl10830 spectroheliograms.
- Publication:
-
Solar Physics
- Pub Date:
- September 1987
- DOI:
- 10.1007/BF00148529
- Bibcode:
- 1987SoPh..111..419W
- Keywords:
-
- Coronal Holes;
- Electron Density (Concentration);
- Radio Observation;
- Ultraviolet Spectra;
- Density Distribution;
- Temperature Distribution;
- Solar Physics;
- Brightness Temperature;
- Optical Signature;
- Coronal Hole;
- Radio Data;
- Radio Observation;
- Radio Maps:Solar Coronal Holes;
- Solar Coronal Holes:Radio Maps