Parameter files are available for each evolution, allowing the user to replicate these results. For better visualization, choose the "Quicktime" option.
A boosted polytropic neutron star advected across the grid at a v=0.3c.
The velocity of the star is directed along the x coordinate axis. The
adiabatic index is 5/3, and the central density is 5 x 1014
(g/cm3).
This data is evolved for 240 timesteps, which corresponds
to 0.3 milliseconds.
The sphere tracks the isosurface of the density just inside the surface
of the star. The star is sliced with a color map which is mapped to the
density in "specialized" geometrized units (see code documentation for
units information).
NOTE: This run was done with only 303 gridpoints, which fits on
only one node of the T3E!
A boosted polytropic neutron star advected across the grid at a v=0.3c.
The velocity of the star is directed along the diagonal (x+y+z). The
adiabatic index is 5/3, and the central density is 5 x 1014
(g/cm3).
This data is evolved for 480 timesteps, which corresponds
to 0.3 milliseconds.
The two transparent spheres are density isosurfaces. The initial data
is kept in place for comparison.
This movie shows the evolution a mass density isosurface of
two TOV mass distributions in full
General Relativistic Hydrodynamics. The initial data is obtained
by solving the Hamiltonian constraint via. York's decomposition.
The initial data is time symmetric. The conformal central density
is 5 x 1014 (g/cm3), but the conformal factor
obtained from the solution to the Hamiltonian constraint lowered the
central density of each star to approximately
2 x 1014 (g/cm3).
The data is evolved for 1800 timesteps, which corresponds to
0.7 milliseconds.
NOTE: This dataset was computed on a 1313 grid.
This movie is of the same evolution described in the movie above,
showing a 2D slice.
The log of the density is mapped to the colors shown.