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Thread: NASA’s Hubble telescope detects supermassive black hole that defies theoretical model

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    Default NASA’s Hubble telescope detects supermassive black hole that defies theoretical model



    NASA’s Hubble telescope has recently discovered a supermassive black hole that defies existing theories about the universe, a report said. The black hole, which is about 250 million times heavier than the sun, lies at the heart of the spiral galaxy NGC 3147 and is 140 million light-years from Earth. The black hole was unusual in that its gravitational pull was not capturing the disk of material, which was moving at 10 percent the speed of light, according to the journal. Lead author Stefano Bianchi said it’s “the same type of disk we see in objects that are 1,000 or even 100,000 times more luminous.” “The predictions of current models for gas dynamics in very faint active galaxies clearly failed,” Bianchi added. You can read more about this report here, at:
    https://www.foxnews.com/science/nasa...shouldnt-exist
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    Default Re: NASA’s Hubble telescope detects supermassive black hole that defies theoretical m

    Thanks but the "defies existing theories of the universe" is sheer hype and hucksterism marinated in snake oil. For a more responsible and sane account please see:
    https://phys.org/news/2019-07-hubble...hole-disc.html

    All that is going on here is that the accretion disk around this SMBH is so thin that it is easy to see details of its motion much closer to the event horizon than usual. Usually SMBHs are surrounded by puffed up disks because of heating from viscous shear and magnetic effects.

    The fact that this disk is so very thin indicates that there is something interesting going on in the disk. That could be an unusual magnetic field orientation perhaps in combination with a more efficient cooling mechanism. So it's interesting for the disk not for the SMBH. Something is causing this disk to "chill out" more than usual. There is nothing special about the SMBH. It's the disk that amazes.
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    Default Re: NASA’s Hubble telescope detects supermassive black hole that defies theoretical m

    Quote Originally Posted by not_Fritz_Argelander View Post
    Thanks but the "defies existing theories of the universe" is sheer hype and hucksterism marinated in snake oil. For a more responsible and sane account please see:
    https://phys.org/news/2019-07-hubble...hole-disc.html

    All that is going on here is that the accretion disk around this SMBH is so thin that it is easy to see details of its motion much closer to the event horizon than usual. Usually SMBHs are surrounded by puffed up disks because of heating from viscous shear and magnetic effects.

    The fact that this disk is so very thin indicates that there is something interesting going on in the disk. That could be an unusual magnetic field orientation perhaps in combination with a more efficient cooling mechanism. So it's interesting for the disk not for the SMBH. Something is causing this disk to "chill out" more than usual. There is nothing special about the SMBH. It's the disk that amazes.
    Alternately we just got lucky to see the disk right at the end of the feeding cycle with very little material remaining.
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    Default Re: NASA’s Hubble telescope detects supermassive black hole that defies theoretical m

    Quote Originally Posted by not_Fritz_Argelander View Post
    Alternately we just got lucky to see the disk right at the end of the feeding cycle with very little material remaining.
    Yes, the black hole could've just cleaned out its immediate neighborhood, and then over time drawing down on the accretion disk.

 

 

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