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.
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I meant pulsars specifically.
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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.
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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.
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Neutron stars are absolutely not inside black holes. That just doesn't make any sense.