Comment on one bright second

theunknownmuncher@lemmy.world ⁨22⁩ ⁨hours⁩ ago

• yakko@feddit.uk ⁨22⁩ ⁨hours⁩ ago

  These ones will be quite dim

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  • theunknownmuncher@lemmy.world ⁨22⁩ ⁨hours⁩ ago

    Yeah, I suppose after a billion billion billion or so years, it probably would be

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    • yakko@feddit.uk ⁨22⁩ ⁨hours⁩ ago

      The light will eventually tire out and turn into radio waves or smth, I’m not a physicist

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      • Holytimes@sh.itjust.works ⁨21⁩ ⁨hours⁩ ago

        To al elder God that sees higher bands of the electromagnetic spectrum it would see be a very bright place!

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• Infernal_pizza@lemmy.dbzer0.com ⁨22⁩ ⁨hours⁩ ago

  Is that because of the accretion disk?

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  • mkwt@lemmy.world ⁨21⁩ ⁨hours⁩ ago

    And Hawking radiation. Hawking radiation is pretty “dark” for solar-mass scale black holes and up, but it can become relatively very intense for smaller holes.

    For the holes we observe astronomically, the things we can see are the accretion disks and the orbits of stars around the black hole.

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    • frezik@lemmy.blahaj.zone ⁨21⁩ ⁨hours⁩ ago

      But that happens because of matter falling into them, right? When they’ve already swallowed everything, there’s not going to be accretion disks.

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      • bjoern_tantau@swg-empire.de ⁨21⁩ ⁨hours⁩ ago

        Yeah, though eventually they should all evaporate one after another with a last huge tiny energy burst due to hawking radiation. But that will take a looooooooong ass time. And we still don’t know (might never know) if hawking radiation is real.

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• turdcollector69@lemmy.world ⁨20⁩ ⁨hours⁩ ago

  Black holes ain’t black because they didn’t vote for Biden

  /s

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