Final Report, 1 October 1970-31 August 1971.
Abstract
In the early 1960's two new types of motion in the sun's atmosphere were discovered: the 5-minute oscillations and the supergranulation. The 5-minute oscillations consist of a predominantly vertical hydrodynamic wave motion in the photosphere and chromosphere with amplitudes around 500 m/sec. The supergranulation consists of a series of convective cells, 30,000 km in diameter, in which material rises at the center, flows horizontally outward, and falls at the boundaries. The horizontal motion in the supergranulation was clearly observed, but its vertical motion was observed only marginally at best. The observations described in the report were made at the Mt. Wilson Observatory 150-foot solar telescope. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1971
- Accession Number
- AD0740233
Entities
Organizations
- University of California, Berkeley