ASTR-7500: Animations, Section IV.5.4

The magnetized tachocline

The following are animated version of Figure II.5.6, for various values of the Reynolds numbers. Remember however that a sequence of solutions for increasing Reynolds numbers at fixed poloidal field strength is equivalent to a sequence of solutions for increasing poloidal field strength at fixed Reynolds numbers.

All animations are in the same format. Solutions in the radiative core are displayed in a meridional quadrant, with the rotation axis vertical and coinciding with the left quadrant boundary, and the equatorial plane with the lower, horizontal boundary. The upper, circular boundary is the core-envelope interface. The white lines are contours of constant angular velocity, with contour intervals of 0.04 and normalized to the equatorial rotation rate. The contours are overlaid on an intensity image of the toroidal field strength. The color scale covers the same range -9000 kG < B_phi < 9000 kG in all cases. All solutions started with zero toroidal field and normalized rotation rate of 0.9412.

Click on any of the following to start the corresponding animation.

Steady-state solutions

The above animations were not pushed all the way to their steady-state, primarily because the latter is approached asymptotically at a rate that would have put you to sleep before you got there. For comparison, the following are the corresponding steady-state solutions, as on Figure II.5.10:

Return to ASTR7500 homepage. -Written by paulchar@hao.ucar.edu.

-Last Revised 4 August 1997 by paulchar@hao.ucar.edu.