Plasma Disturbances in the Solar Polar Regions
Abstract
We investigate ubiquitous transient brightenings in coronal open structures seen with SDO/AIA and STEREO/SECCHI. EUV observations near the solar surface show that polar plumes (and also inter-plume regions) have been observed to harbor small outward-moving fluctuations in brightness on time scales of several minutes. It is not clear whether the fluctuations comprise boluses of material moving outward, wave phenomena, or both. The anti-sunward propagating blobs have velocities ranging from a few 10 km/sec to more than 100 km/sec.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2012
- Bibcode:
- 2012AGUFMSH53A2269R
- Keywords:
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- 7500 SOLAR PHYSICS;
- ASTROPHYSICS;
- AND ASTRONOMY;
- 7509 SOLAR PHYSICS;
- ASTROPHYSICS;
- AND ASTRONOMY / Corona;
- 7511 SOLAR PHYSICS;
- ASTROPHYSICS;
- AND ASTRONOMY / Coronal holes;
- 7549 SOLAR PHYSICS;
- ASTROPHYSICS;
- AND ASTRONOMY / Ultraviolet emissions