{{
`${userDetail.user.displayName}${userDetail.user.cachedBungieGlobalDisplayNameCode ? `#${standardizeBungieGlobalCode(userDetail.user.cachedBungieGlobalDisplayNameCode)}` : ""}`}}
{{getUserClans()}}
4/5/2016 12:28:54 AM
8
If nothing can escape a black hole then how can radiation? [spoiler]if black holes exisw in the first place[/spoiler]
English
-
Virtual particles. Specifically, nearing the event horizon, these virtual particles become photon pairs and annihilate. If one falls in, the other is emitted as Hawking radiation.
-
I meant pulsars specifically.
-
Pulsars are neutron stars, not black holes. If you're referring to gamma ray bursts, this occurs from neutron star mergers and very energetic supernovae. If you're referring to all the light around a blackhole, that's not actually part of the black hole, it's just an accretion disk.
-
Yeah sorry they are from neutron stars. I could question the legitimacy of black holes as an entity at all and tge gravitational lensing being enough evidence to prove they exist. Along with the theory that neutron stars are at the centre of them. I love space, the wonders of it and looking up every clear night is just natural to me. I just also love questioning our knowledge of it especially the theoretical side. As theoretically anything is possible.
-
Neutron stars are absolutely not inside black holes. That just doesn't make any sense.
-
It emitts radiation.
-
How can it emmit anything tho. Nothing can exit the event horizon.
-
My understanding of hawking radiation is that the radiation it emits is from virtual particles the pop in and out of existence on the event horizon. To satisfy the law of conservation of mass, one particle has a + mass and one has a - mass. Most of these particles cancel each other out almost instantly, but sometimes a particle will fall in past the event horizon while its counterpart is free to escape. I believe that the negative particle is generally the one to fall in which is what allows black holes to eventually evaporate.
