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单词 Gravitational Radius
释义

Gravitational Radius

英语百科

Schwarzschild radius

The relation between properties of mass and their associated physical constants. Every massive object is believed to exhibit all five properties. However, due to extremely large or extremely small constants, it is generally impossible to verify more than two or three properties for any object.
 The Schwarzschild radius (rs) represents the ability of mass to cause curvature in space and time.
 The standard gravitational parameter (μ) represents the ability of  a massive body to exert Newtonian gravitational forces on other bodies.
 Inertial mass (m) represents the Newtonian response of mass to forces.
 Rest energy (E0) represents the ability of mass to be converted into other forms of energy.
 The Compton wavelength (λ) represents the quantum response of mass to local geometry.

The Schwarzschild radius (sometimes historically referred to as the gravitational radius) is the radius of a sphere such that, if all the mass of an object were to be compressed within that sphere, the escape velocity from the surface of the sphere would equal the speed of light. An example of an object where the mass is within its Schwarzschild radius is a black hole. Once a stellar remnant collapses to or below this radius, light cannot escape and the object is no longer directly visible, thereby forming a black hole. It is a characteristic radius associated with every quantity of mass. The Schwarzschild radius was named after the German astronomer Karl Schwarzschild, who calculated this exact solution for the theory of general relativity in 1916.

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更新时间:2025/6/18 13:24:59