1980 rocket coronagraph measurements of the solar wind acceleration region.
Abstract
Spectroscopic measurements of temperatures, densities and flow velocities in the solar wind acceleration region provide critical empirical constraints on solar stellar wind theory. Preliminary results of an analysis of H I Lyman-alpha and white light measurements made on 16 February 1980 in a polar coronal region are reported. The hydrogen kinetic temperatures in the observed region were found to be nearly constant with THI approximately equals 10 degrees K at heliocentric distances between 1.5 and 4 solar radii. The outflow velocities were found to be subsonic indicating that the critical point in the observed region was located at r approximately greater than 4 solar radii.
- Publication:
-
SAO Special Report
- Pub Date:
- February 1982
- Bibcode:
- 1982SAOSR.392A..99W
- Keywords:
-
- Solar Corona:Solar Wind;
- Coronagraphs;
- Solar Corona;
- Solar Spectra;
- Solar Wind Velocity;
- Black Brant 5 Sounding Rocket;
- Hydrogen;
- Lyman Spectra;
- Solar Temperature;
- Spectroscopy;
- Solar Physics