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Thread: Galactic ‘Supervolcano’ Erupting With X-Rays

  1. #1 Galactic ‘Supervolcano’ Erupting With X-Rays 
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    Galactic ‘Supervolcano’ Erupting With X-Rays:

    An article documenting the recent discoveries by the Chandra X-ray Observatory and the National Radio Astronomy Observatory's Very Large Array (VLT), headed by Norbert Werner of the SLAC National Accelerator Laboratory in California, of the eruption of a galactic "supervolcano" in the massive galaxy M87.

    http://hicexsistoeverto.wordpress.co...g-with-x-rays/

    Comments and feedback welcomed! Looking for new subscribers too!

    Enjoy


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  3. #2  
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    interesting.........

    do they know if this is related to the size of the galaxy / SMBH? M87 is a particularly large galaxy.

    is this the SMBH spewing out matter as a result of consuming too much? I understand this can happen with stella mass blackholes, but not sure about the super massive variety. I guess it would be hard for a SMBH to consume too much matter given it's size?


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  4. #3  
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    Hi Andy...well M87 is one of the biggest elliptical galaxies known (I think its classified as a Giant Elliptical...cD class).

    It is believed that elliptical galaxies form via the merger and collisions of smaller spiral or dwarf galaxies, so it is believed that the mergers must have caused each individual component galaxy to have each of their central massive black holes merged...so, the accretion power it provides is most definately linked to the size of M87

    (in my opinion, possibly read further into the M-sigma relation because this is all linked i.e. galaxy evolution and black hole mass)

    The X-rays produced by M87 will be as a result of an accretion process. Accretion discs are common around smaller stars or stellar remnants in a close binary, or black holes in the centers of spiral galaxies. Some dynamics in the disc are necessary to allow orbiting gas to lose angular momentum and fall onto the central massive object, this is what is causing this huge volcanic type erruption.

    Awesome stuff tho! :-D
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  5. #4  
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    indeed it is, this sort of shit never ceases to amaze me!!
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  6. #5  
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    It has been suggested that SMBH's may roam:


    http://www.sciencedaily.com/releases...0525154004.htm


    and when you have one of the biggest in the universe, at 6.4 billion solar masses, what is going to stop it? Black holes are said to be "sloppy eaters" with upto 90% of mass being lost rather than consumed, so if this one wandered near a nursery of young stars, much of the spare hydrogen could end up as hard x-rays sent out as jets via it's magnetic field.
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