Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001a%26a...379.1083d&link_type=abstract
Astronomy and Astrophysics, v.379, p.1083-1097 (2001)
Astronomy and Astrophysics
Astrophysics
38
Sun: Oscillations, Sun: Magnetic Fields, Sun: Corona, Sun: Prominences
Scientific paper
High-resolution observations suggest that quiescent solar prominences are made of small-scale fibrils stacked one after another in both the vertical and horizontal directions. These fibrils are interpreted as the cool, highermost part of much larger coronal loops which are rooted in the solar photosphere. On the other hand, there is some evidence showing that small amplitude oscillations in prominences can affect individual or groups of fibrils, which vibrate with their own periods. Using a simple magnetostatic model to represent the fibril structure of quiescent solar prominences, Joarder et al. (\cite{joarder}) investigated some oscillatory properties of the Alfvén and fast magnetohydrodynamic modes. In this paper, with a proper treatment of boundary conditions, we reexamine their configuration and explore more deeply the basic features (mainly frequency and spatial structure) of the fast mode. The main conclusion is that, for reasonable values of the fibril's width, perturbations extend far away from its axis and, therefore, a single oscillating fibril can excite oscillations in neighbouring ones.
Ballester Jose Luis
Diaz J. A.
Erdelyi Robert
Oliver Ramon
No associations
LandOfFree
Fast MHD oscillations in prominence fine structures 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 Fast MHD oscillations in prominence fine structures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fast MHD oscillations in prominence fine structures will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1227629