PHENOMENA STUDIO / PLOHOV E.S
Physics you can see.
Four interactive scenes, including a numerically generated image of a point gravitational lens. Geometric illustration, interference screen and particle ring deformation - with explicit limits of each model.
Geometry laboratory
Analytical illustration • scale is conditionalMODEL NOTES / geometry
What do you see
The grid pattern illustrates the geometric idea of gravity; This is not an embedding chart of a specific metric. Particle orbits are decorative, not solutions to the geodesic equation.
The depth parameter specifies the shape of the geometric illustration. To calculate horizons and ISCO, use a physics calculator.
04 / COMPUTED LIGHT MAPPING
A lens that changes the image.
Non-drawn rings: Each pixel is calculated from the point lens equation.
POINT-MASS LENS / θᴱ = 1
Geometry of light
y = x − x/|x|²
- x₊ · point source
- 1.1902 θᴱ
- x₋ point source
- -0.8402 θᴱ
- Total gain · spot
- 2.987
The numbers on the right refer to a point source; image to the final Gaussian source. The final source gain is not integrated here.
Thin point lens, normalized angles. The brightness of the source is transferred according to the lens equation; conditional color, square grid - diagnostic background. Source rotation - training scenario, not calculated orbit. This is not ray tracing in the Kerr metric and not a real telescope image.
Theory of Gravity and Lensing · David Tong ↗