Gravitational Lensing of a Black Hole : According to Einstein’s Theory of Relativity, the intense gravity of a black hole can bend light into a circle called an Einstein Ring. See also Event horizon, Schwarzschild radius, photon sphere. The following code is only an approximation:
(* runtime: 30 seconds *)
Clear[stars]; SeedRandom[535]; stars[{x_, y_}] = Sum[Exp[-500((x - Random[])^2 + (y - Random[])^2)/Random[]^2], {10}];
DensityPlot[Module[{r = x^2 + y^2}, If[r 275, PlotRange -> {0, 1}, Mesh -> False, Frame -> False]
Links
- “Monster of the Milky Way” – Nova video about black holes
- Black Holes – BBC Video with Sam Neill
- ART project – relativity simulations, see the movies “Tackling the Riddles of Gravity” and “Numerical Relativity”
- Werner Benger – Black Hole Raytracing, Einstein Ring Animation, and simulation of Earth as a black hole
- Virtual Trips to Black Holes – simulations by Robert Nemiroff
- Black Hole Simulation – by Phil Armitage
- Black Hole Flight Simulator – screenshots and Java applet, by Andrew Hamilton
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