The magnetohydrodynamic instability of a vertically ejected cylinder from the solar surface

Details The magnetohydrodynamic instability of a vertically ejected cylinder from the solar surface The magnetohydrodynamic instability of a vertically ejected cylinder from the solar surface

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984acasn..25...15s&link_type=abstract

(Acta Astronomica Sinica, vol. 25, no. 1, 1984, p. 15-24) Chinese Astronomy and Astrophysics (ISSN 0275-1062), vol. 8, Sept. 198

Astronomy and Astrophysics

Astrophysics

5

Coronal Loops, Magnetohydrodynamic Stability, Plasma Acceleration, Plasma Cylinders, Solar Flares, Solar Magnetic Field, Magnetic Field Configurations, Pinch Effect, Skin Resistance, Solar Gravitation, Solar Oscillations, Solar Prominences

Scientific paper

The linear MHD instability of magnetized ejective cylinder perpendicular to solar surface is investigated and the general dispersion relation and its simplified equation under the quasi-homogeneous condition are given. It follows that (1) in the vertical case the growth rate ωarcsec increases while in the horizontal case it fluctuates around some value. (2) In the vertical case the cylinder responds to high frequencies, but in the horizontal case the reverse is true. (3) In the vertical case there seem to be the skin effect phenomena in various disturbed quantities but the horizontal ejection cylinder had none. (4) In both cases three modes exist simultaneously: pure oscillating, damping, and growing modes. (5) In both cases ωarcsec is very sensitive to the magnetic field ψ-component He0ψ, and as He0ψ→0, ωarcsec can decrease by several orders of magnitude, which indicates that the twisted magnetic field component is the primary factor causing the instability.

Affiliated with

Also associated with

No associations

Rating

The magnetohydrodynamic instability of a vertically ejected cylinder from the solar surface 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 The magnetohydrodynamic instability of a vertically ejected cylinder from the solar surface, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The magnetohydrodynamic instability of a vertically ejected cylinder from the solar surface will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1389630