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Results tagged with black-holes
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user 182909
A black hole is a region of spacetime from which nothing can escape. More formally, the future light cone of any observer within the black hole is completely contained in the black hole, and the black hole region is not within the past light cone of any observer that goes to spatial infinity in an infinite amount of time.
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The Killing vector $\chi=\partial_t+\Omega_H\partial_\phi$ doesn't look normal to the Killin...
As mentioned in Carroll's Spacetime and Geometry p. 244, a Killing vector is normal to its Killing horizon. With some help from the other forum, I could check this is true. (FYI, here the Killing hori …
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