The effect of line tying on Parker's instability

Details The effect of line tying on Parker's instability The effect of line tying on Parker's instability

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...399..318z&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 399, no. 1, p. 318-324.

Astronomy and Astrophysics

Astrophysics

11

Solar Magnetic Field, Solar Prominences, Taylor Instability, Field Strength, Potential Energy, Solar Atmosphere, Stabilization

Scientific paper

We consider the effect of line tying on the magnetic Rayleigh-Taylor or Parker instability. We find that stabilization occurs if the field lines are sufficiently short that the Alfven travel time between the boundaries is less than 2 pi times the instability growth time in an unbounded medium. In a magnetically dominated system, the critical field line length scales linearly with magnetic field strength. This criterion may be revelant to the stabilization of solar prominences.

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