Real-time simulation of black holes based on physics makes this

Black HoleIt is difficult to make direct observations, you can see from the image of the model created by calculation from the viewpoint of physics only. It was obsessed with the charm of the black holeRiccardo AntonelliHas created and published simulation images and real time simulation movies based on theoretical calculations themselves and can understand the shape of the black hole even if physics is unknown at all It is becoming.

Schwarzschild Black Hole
http://spiro.fisica.unipd.it/~antonell/schwarzschild/

Raytracing a Black Hole
http://rantonels.github.io/starless/

A real-time simulation movie of black hole created by Antonelli can be confirmed from the following.

Real-time simulation of black hole (background: Milky Way) - YouTube


Created by AntonelliSchwarzschild · Black HoleThe image is this. The black hole is a heavenly body with enough gravity to suck up not only matter but even light. The black circle in the center,Earthquake of events(Schwarzschild face) part,Schwarzschild radiusEven photons can not get out of the plane of the event because the speed required to get out goes beyond the speed of light. Since all the substances including photons can not escape, the ground plane of the event is pitch dark. There is an object like a ring that shines around the plane of the event, but this is the light that is twisted by gravity.


So, how about Antonelli's visualization of black holes, "Ray tracingIt is said that he used technology to calculate a three-dimensional image called " In the real world, the light of the sun or light reflects on the object and enters the human eye, human beings can see things, but ray tracing is the opposite of what happens when people see things , A calculation method based on the idea that "the object is looking at a person", striking an object by extending the line of sight striking from the human eye. Antonelli made images and real-time simulations using ray tracing to trace the light that jumps into the eye in the opposite direction and calculate the color and brightness of the surface of the object and draw it.

In the process of creation it was necessary to grid the horizon of the event which is pitch dark and to see from wherever it could be seen that the plane of the event can be seen. It was one of the solutions of the Einstein equation in general relativity theory below, which was created at that timeSolution of SchwarzschildWe are expressing the event horizon by grid on the basis of.


movies"Interstellar "But it was drawn, whiteAccretion discAn image of a black hole with. The accretion disk in the black hole is a disk formed by gas and dust sucked into the same object, and black holes that form a binary system may be formed. However, according to Antonelli, the following image shows that the spectrum of light from the observation target is biased to redRed shiftIt is not considered astronomical factors such as.


The accretion disk created by Antonelli is this. The color of the accretion disk is mostly white, but you can see that it is orange sticking to the outer edge. However, the level of the accretion disk is too bright and the change in color is only a little understood.


It is the image below that weakened the intensity of light. Besides being on the outside orange color, the inside also has a part that is changing to pale white.


Looking at the black hole from the front is like this.


Real-time simulation movie of black hole created using many models and ray tracing can be confirmed from the following URL. However, it is said that color change due to red shift is omitted.

Schwarzschild Black Hole
http://spiro.fisica.unipd.it/~antonell/schwarzschild/live/

When opening the URL above, the black hole background is displayedBallmer seriesofHα rayYou can check the simulation movie that matched you from the following.

Real-time simulation of black hole (background: Hα ray) - YouTube


If the background is a grid of latitude and longitude, it looks like the following movie.

Real-time simulation of black hole (background: grid of latitude and longitude) - YouTube


When a black hole appears with the picture of the house in the background, it will be tremendous like the following movie.

Real-time simulation of black hole (background: photo) - YouTube


In addition, the source of real-time tracing software developed by Mr. Antonelli himself is published in Github, and anyone can download it.

Rantonels / starless · GitHub
https://github.com/rantonels/starless