On the Stability of Siphon Flows Confined in Coronal Loops
Abstract
We use a time-dependent hydrodynamic model to study the dynamics of siphon flows triggered by differences of pressure or heat deposition asymmetries between the two footpoints of a coronal loop. We show that steady pressure driven flows in a uniformly heated loop are unstable, whereas those driven by asymmetries in the heating function may be stable. We also show that, in these cases, relatively cool loops might be filled far above their static pressure scale height.
- Publication:
-
Space Science Reviews
- Pub Date:
- January 1999
- DOI:
- 10.1023/A:1005182503751
- Bibcode:
- 1999SSRv...87..133B