Mass flow in loop type coronal transients.
Abstract
The white light coronagraph on Skylab observed many loop type coronal transients. These loops travel through the coronagraph's field of view (2-6R⊙) over a period of a few hours, after which the legs of the loops usually remain visible for a few days. In this paper we investigate the temporal changes in density and mass per unit length measured along the legs of such loops during the several days after the initial eruption. Examination of 8 transients shows that the mass and density in the legs decrease during the few hours after the top of the loop has travelled beyond the coronagraph's field of view. The mass and density then increase slowly, during the next one half to one day, then decrease again over approximately the same period. These changes are generally shown to be too rapid to be explained by solar rotation, indicating that the transient legs have a lifetime of only a few days.
- Publication:
-
Solar Physics
- Pub Date:
- February 1979
- DOI:
- 10.1007/BF00155449
- Bibcode:
- 1979SoPh...61...95A
- Keywords:
-
- Mass Flow;
- Solar Corona;
- Solar Prominences;
- Graphs (Charts);
- Mass Distribution;
- Solar Physics;
- Solar Physics;
- Temporal Change;
- Pressure Gradient;
- Mass Flow;
- Theoretical Calculation;
- Density Gradient;
- Mass Flow:Solar Corona;
- Mass Flow:Solar Coronal Loops;
- Solar Coronal Transients