COMPARISON OF SOLAR RADIATION AT 3.4MM AND H-ALPHA.
Abstract
Solar brightness was compared in H-alpha and 3.4mm wavelength to determine the source of 3.4mm radiation. A negative in H-alpha (6563 A) was scanned by a microdensitometer, and converted to a matrix of brightness values by a computer code, and compared with a similar map of the solar disk at 3.4mm wavelength. Although the bulk of 3.4mm radiation originates in the chromosphere between 1500 and 2500 km above the photosphere, spots of enhanced intensity associated with sunspot groups are due to enhanced density in the corona. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1967
- Accession Number
- AD0818323
Entities
People
- Chandler James Kennedy
Organizations
- Air Force Institute of Technology