Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsh33a2034b&link_type=abstract
American Geophysical Union, Fall Meeting 2011, abstract #SH33A-2034
Astronomy and Astrophysics
Astrophysics
[7513] Solar Physics, Astrophysics, And Astronomy / Coronal Mass Ejections, [7531] Solar Physics, Astrophysics, And Astronomy / Prominence Eruptions
Scientific paper
We review the observed relationships between polar crown quiescent prominences, coronal cavities, and polar crown CMEs with the goal of understanding these phenomena as aspects of a single magnetic system. We propose that the fundamental structure is a helical magnetic flux rope suspended in the corona. Coronal cavities are the (view-angle dependent) markers of the density depletion in the core of the flux rope. Quiescent prominences are plasma flow systems in the current sheet region below the flux rope. The recently discovered coronal prominence bubbles that propagate via a Rayleigh-Taylor instability through the prominence region are injections of new magnetic flux and helicity into the coronal flux rope. Flux ropes erupt as slow coronal mass ejections when the magnetic energy density exceeds that of the overlying "arcade" fields, essentially forming a "magnetic bubble" that "floats" away from the Sun. We emphasize that this system and its mechanism of eruption may not be applicable to the much stronger magnetic fields in active region prominence formations.
No associations
LandOfFree
Quiescent Prominences, Coronal Cavities, and Coronal Mass Ejections: a unified systems viewpoint does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Quiescent Prominences, Coronal Cavities, and Coronal Mass Ejections: a unified systems viewpoint, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quiescent Prominences, Coronal Cavities, and Coronal Mass Ejections: a unified systems viewpoint will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-878875