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Largest Eruption In the Known Universe Is ~100 Times the Size of Milky Way

StartsWithABang writes: At the center of almost every galaxy is a supermassive black hole (SMBH); at the center of almost every cluster is a supermassive galaxy with some of the largest SMBHs in the Universe. And every once in a while, a galactocentric black hole will become active, emitting tremendous amounts of radiation out into the Universe as it devours matter. This radiation can cut across the spectrum, from the X-ray down to the radio. At the heart of MS 0735.6+7421, there's a >10^10 solar mass black hole that appears to have been active for hundreds of millions of years, something unheard of!

5 of 73 comments (clear)

  1. Re:Well by Anonymous Coward · · Score: 3, Insightful

    Oh please, as if Fox News could produce that much energy, then they'd be useful for something.

  2. Re:Puzzled by dimeglio · · Score: 4, Informative

    IANAP but I think it doesn't escape once in the black hole. However, on the way there, matter gets mangled and ripped apart which happens before it actually crosses the event horizon. This is where these emissions take place.

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  3. Re:Puzzled by Anonymous Coward · · Score: 4, Informative

    I never understood this. It is said that the black holes are black because not even light can escape them. And yet, they emit light? How does the light they emit escape?

    No light escapes from the black hole. The radiation that we're detecting comes from matter in the accretion disk. A disk of gas and dust around the black hole way farther than the event horizon. This matter is heated and accelerated by the gravitational forces of the black hole. That's why they radiate. If this matter were inside the black hole's even horizon then yes we wouldn't be able to detect it cause once inside the event horizon there is no escape. It's all way down to the singularity with no hope of escaping.

  4. Re:Largest known? by St.Creed · · Score: 3, Insightful

    I'd hate to be at just a mere 2.6 lightyears distance from an event that caused two volumes both 600000 lightyears across to be filled with hot, X-ray emitting gas.

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    Therefore, by the (faulty) logic you're using, you're just a cow with a keyboard - osu-neko (2604)
  5. Re:Puzzled by schlachter · · Score: 3, Funny

    it does seem to work like this, with bodies of larger mass being attracted to it with greater force!

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