Effects of Line-tying on Resistive Tearing Instability in Slab Geometry

Physics – Plasma Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

The effects of line-tying on magnetohydrodynamic instabilities are an important issue for astrophysical plasmas, such as the solar corona or astrophysical jets. Recently, several laboratory experiments aimed at studying line-tying effects have been initiated. This work studies the effect of line-tying on the resistive tearing instability in the slab geometry. A strong guide field perpendicular to the conducting boundary is assumed, therefore the system is described by the well-known reduced magnetohydrodynamic (RMHD) equations. The linearized eigenvalue problem is solved numerically. It is found that line-tying has a stabilizing effect. The tearing mode is stabilized when the system length L is shorter than a critical length Lc, which is independent of the resistivity η. When L is not too much longer than Lc, the growthrate γ is proportional to η . When L is sufficiently long, the tearing mode scaling γ˜&3/5circ; is recovered. The transition from γ˜η to γ˜&3/5circ; occurs at a transition length Lt˜&-2/5circ;.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Effects of Line-tying on Resistive Tearing Instability in Slab Geometry 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 Effects of Line-tying on Resistive Tearing Instability in Slab Geometry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Effects of Line-tying on Resistive Tearing Instability in Slab Geometry will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1842432

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.