Rayleigh-Taylor instability in partially ionized prominence plasma

Bibcode
2014IAUS..300...90K
DOI
10.1017/S174392131301079X
Khomenko, E.; Díaz, A. J.; de Vicente, A.; Collados, M.; Luna, M.
Bibliographical reference

Nature of Prominences and their role in Space Weather, Proceedings of the International Astronomical Union, IAU Symposium, Volume 300, pp. 90-93

Advertised on:
1
2014
Number of authors
5
IAC number of authors
5
Citations
2
Refereed citations
2
Description
We study Rayleigh-Taylor instability (RTI) at the coronal-prominence boundary by means of 2.5D numerical simulations in a single-fluid MHD approach including a generalized Ohm's law. The initial configuration includes a homogeneous magnetic field forming an angle with the direction in which the plasma is perturbed. For each field inclination we compare two simulations, one for the pure MHD case, and one including the ambipolar diffusion in the Ohm's law, otherwise identical. We find that the configuration containing neutral atoms is always unstable. The growth rate of the small-scale modes in the non-linear regime is larger than in the purely MHD case.
Type
Non-refereed
Magnetic fields

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