These 2D simulations model a shockwave driven into
the dense ring of circumstellar gas surrounding SN 1987A.
The transmitted shock is slow enough, and the ring gas
dense enough that radiative cooling becomes effective.
The initial conditions constitute a shockwave traveling in the low density HII region with a velocity of 2000 km/s, about to impact the dense gas of the circumstellar ring. We have added a 5% density perturbation in the ring gas with a wavelength of several times larger than the nominal cooling length of the transmitted radiative shock.
The top and bottom are periodic boundary conditions.
The square simulation grid, of length 1015 cm,
moves to the right to follow the shock front into the ring.
500 x 500 zones |
Zeli2_1008.hdf |
zeli2.qt
1000 x 1000 zones |
Zeli3_1008.hdf |
zeli3.qt
2000 x 2000 zones |
Zeli4_1008.hdf
