Stability of Prominence/Cavity Systems
Abstract
Prominence/cavity systems are large scale structures in the solar corona that can live for many weeks and even month and often end their life in the form of large prominence/ cavity eruptions. During this phase of the solar cycle, large coronal cavities are seen at high latitudes and correspond, in on-disk observations, to the polar crown filaments.We investigate the stability of these large prominence/cavity systems in the solar corona and their interaction with the ambient coronal field using observations from SDO/AIA and SDO/HMI. In particular, we examine how the decline with height of the external coronal magnetic field influences the evolution of these systems and their likelihood to erupt.We will present examples of eruptive and non-eruptive coronal cavities.
- Publication:
-
Solar Heliospheric and INterplanetary Environment (SHINE 2012)
- Pub Date:
- June 2012
- Bibcode:
- 2012shin.confE.208D