Schwarzschild radius

Schwarzschild came up with his mathematical formula to determine how big a black hole could be by taking the mass and then finding the radius of what the black hole of would assuming it were flat with the equation would be rs = 2GM/c^2 (O'Connor, J J, and E F Robinson.). While most black holes of varying length in radius act the same there is some differences for supermassive black holes. According to the article…

or neutron star, it is highly likely labeled a black hole. In the second commonly used method black holes are determined by the visibility of the star and its distance to the black hole. When stars enter the event horizon (also known as “The Schwarzschild Radius” in his honor.) of a black hole, mixtures of its gases will be extremely attracted to the black hole. These gases will start to form an “Accretion Disk” (formed by diffused material in orbital motion around a massive central body) around…