![\begin{figure}
\par\includegraphics[angle=-90,width=8cm,clip]{sn87a_model1CMJN.eps}
\end{figure}](/articles/aa/full/2006/48/aa6198-06/Timg110.gif) |
Figure 5:
Sketch used to model the matter distribution around SN 1987 A. The matter is arranged in a circular
torus of radius
;
lines of constant density form circles which build up the torus.
For torus circles up to radius
the distribution follows a Gaussian which has its
peak at
and falls off with increasing .
Outside of
the distribution is
roughly exponential which peaks at
and decreases with increasing
.
For each location in space (r, ,
)
the density is defined according to
this scheme (no dependence on ). The big circle represents the radius of the forward shock wave at
day 7000, which has just passed the torus center. |