<https://www.physicsforums.com/threads/why-hawking-radiation-contains-other-particles-besides-photon.356480/>
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"Hawking radiation is standard thermal spectrum, thermal spectrum means it only can emit photon.\r\n\r\nwhy Hawking radiation contains other particles?(electron neutrino neutron proton etc)"
<https://www.physicsforums.com/threads/why-hawking-radiation-contains-other-particles-besides-photon.356480/#post-2452232>