The stability of toroidal fields in stars

Details The stability of toroidal fields in stars The stability of toroidal fields in stars

2005-12-07

arxiv.org/abs/astro-ph/0512182v1

Astronomy and Astrophysics

Astrophysics

13 pages, 14 figures, comments welcome

Scientific paper

10.1051/0004-6361:20041282

We present numerical models of hydromagnetic instabilities under the conditions prevailing in a stably stratified, non-convective stellar interior, and compare them with previous results of analytic work on instabilities in purely toroidal fields. We confirm that an $m=1$ mode (`kink') is the dominant instability in a toroidal field in which the field strength is proportional to distance from the axis, such as the field formed by the winding up of a weak field by differential rotation. We measure the growth rate of the instability as a function of field strength and rotation rate $\Omega$, and investigate the effects of a stabilising thermal stratification as well as magnetic and thermal diffusion on the stability. Where comparison is computationally feasible, the results agree with analytic predictions.

Affiliated with

Also associated with

No associations

Rating

The stability of toroidal fields in stars 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 stability of toroidal fields in stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The stability of toroidal fields in stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-428106