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goldsax
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If a black hole is a stellar structure that has collapsed on itself to a singularity does that mean it has no size? But is so defined by its mass and schwarzschild radius?
Cheers
Cheers
Drakkith said:The black hole has a size defined by the event horizon. The actual volume and such is a bit more complicated to determine due to spacetime curvature I believe. A singularity, IF it exists at all, would have no size.
The mass of a black hole is an important characteristic that determines many of its properties. It is the amount of matter contained within the black hole's event horizon, which is the point of no return for anything that enters the black hole. The mass of a black hole is typically measured in terms of solar masses, with one solar mass being equal to the mass of our Sun.
The Schwarzschild radius is the distance from the center of a black hole at which the escape velocity is equal to the speed of light. It is named after the German physicist Karl Schwarzschild who first calculated it. The Schwarzschild radius is directly proportional to the mass of the black hole - the larger the mass, the larger the Schwarzschild radius.
The mass of a black hole directly determines its size. The larger the mass, the larger the black hole's event horizon and therefore the larger the black hole's size. This means that a black hole with a mass of 1 solar mass will have a smaller size compared to a black hole with a mass of 10 solar masses.
The mass and the Schwarzschild radius of a black hole are directly related. The Schwarzschild radius is proportional to the mass of the black hole, with a proportionality constant of 2GM/c^2 (where G is the gravitational constant and c is the speed of light). This means that as the mass of the black hole increases, so does its Schwarzschild radius.
Yes, a black hole's mass and Schwarzschild radius can change over time. As a black hole consumes matter and energy, its mass will increase and therefore its size (Schwarzschild radius) will also increase. Additionally, black holes can merge with other black holes, which can change their mass and size. However, the Schwarzschild radius of a black hole will always be directly proportional to its mass, even as they change.