Les éclipses totales et l'environnement solaire.
Abstract
The solar corona, which becomes highly visible during an eclipse, was first characterized as belonging to the sun in 1868, and the ionized state of the plasma was recognized in 1941. Coronal jets, i.e., particle streaming, were recognized in the 20th century. Modern era measurements include spectroscopic and radioastronomical data, gathered during the transit of the moon across the solar disk, with 'slices' taken of different sections of the solar image. Spectroscopy and monochromatic photometry have disclosed the limb structures of the chromosphere and coronal bursts. The ability to photograph the coronal features in totality during an eclipse is emphasized, as is photography of the stellar field around the sun. Comparisons are then made with photographs taken six months later. Additionaly, total field photography allows for examinations of the solar magnetic field lines and the plasma flow, which is the origin of the solar wind.
- Publication:
-
L'Astronomie
- Pub Date:
- April 1983
- Bibcode:
- 1983LAstr..97..177K
- Keywords:
-
- Astronomical Photography;
- Solar Corona;
- Solar Eclipses;
- Astronomical Photometry;
- Solar Spectra;
- Solar Physics