Timeline for If a mass moves close to the speed of light, does it turn into a black hole?
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5 events
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| Jun 24 at 6:50 | comment | added | KDP | "Light from other regions of space will eventually reach it, unlike a black hole." This is not correct. Light from other regions WILL reach a black hole. What they won't do is escape it. You are also stating the accelerated particles see an event horizon and while this true, it does not make their point of view the same as being part of a black hole . The accelerating Rindler observers are equivalent to being outside a black hole. The only Rindler observer that is remotely equivalent to being part of a black hole has infinite acceleration, but you do not make that clear. | |
| May 12, 2022 at 20:46 | comment | added | Quillo | Best answer here. It also answers this: physics.stackexchange.com/q/708360/226902 | |
| Nov 30, 2015 at 22:33 | comment | added | B T | +1 For adding more realistic context to the answer - obviously a mass accelerated up to near C needs to spend a finite time accelerating. | |
| Jan 21, 2011 at 15:03 | comment | added | Ted Bunn | True, but the apparent horizon in this situation is very different from a black hole horizon. In the case of the accelerating particle, the stuff that's "behind" the apparent horizon is far away from the particle -- just the opposite of the black hole's event horizon. That is, heuristically, a black hole's event horizon says that once you're sufficiently close to the black hole you can't get far away, whereas the accelerated particle's horizon says that once you're sufficiently far from the particle you can't get close. | |
| Jan 21, 2011 at 7:32 | history | answered | Joe Fitzsimons | CC BY-SA 2.5 |