HR: 1330h
AN: SH22A-0184    [PDF]
TI: Modeling Vertical Plasma Flows in Solar Filament Barbs
AU: * Litvinenko, Y
EM: yuri.litvinenko@unh.edu
AF: Institute for the Study of Earth, Oceans, and Space, University of New Hampshire, Durham, NH 03824 United States
AB: Speeds of observed flows in quiescent solar filaments are typically much less than the local Alfv\'en speed. This is why the flows in filament barbs can be modeled by perturbing a local magnetostatic solution describing the balance between the Lorentz force, gravity, and gas pressure in a barb. Similarly, large-scale filament flows can be treated as adiabatically slow deformations of a force-free magnetic equilibrium that describes the global structure of a filament. This approach reconciles current theoretical models with the puzzling observational result that some of the flows appear to be neither aligned with the magnetic field nor controlled by gravity.
DE: 7507 Chromosphere
DE: 7509 Corona
DE: 7524 Magnetic fields
SC: SPA - Solar and Heliospheric Physics [SH]
MN: 2003 Fall Meeting