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A Giant Hole in space Well, I'll be a

  1. Jul 3, 2010 #1

    rhody

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    http://www.dailygalaxy.com/my_weblo...ily+Galaxy:+News+from+Planet+Earth+&+Beyond)"
    Rhody... :surprised

    P.S. Is there really enough energy in the jets and nearby radiation to have this effect ? A one time weird coincidence of events ?
     
    Last edited by a moderator: Apr 25, 2017
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  3. Jul 3, 2010 #2

    rhody

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    https://www.physicsforums.com/showthread.php?t=390234"

    Hmm, remember this post awhile ago ? Galaxies moving away at at bout 1/10 th the speed of light, and now this, any correlations (however unrelated) to be drawn here ?

    Marcus, any thoughts ?

    Maybe that's where all that missing matter in the current story ended up, lol. :biggrin:
     
    Last edited by a moderator: Apr 25, 2017
  4. Jul 3, 2010 #3
    From what I understand, this could be exactly what has been theorized; the result of the birth of a hypergiant star. The star itself could have rapidly spent its nuclear fuel... but then where is the remnant? If this is polar, where is the other pole? I find this very interesting and unexpected, but dark matter? Hm, if it were there should be lensing around the edges of hole. This is very odd.
     
  5. Jul 3, 2010 #4

    rhody

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    nismaratwork,

    Yeah, just like the other story with about 4% of the universe moving away from us at 1/10th the speed of light, both stories beg for better explanations. I am sure Marcus will get back to us after the holidays.

    Rhody...

    P.S. Had a chance to do give more thought to the post: Why is Asperger's considered a form of autism? https://www.physicsforums.com/showpost.php?p=2782345&postcount=87", and your post #88 ? Any followup ?
     
    Last edited by a moderator: Apr 25, 2017
  6. Jul 3, 2010 #5
    I'm curious, but I seen nothing in that article to give any sense of scale. That could range anything from a yawn to a jaw dropper. The photo looks a bit strange, but perceptions from the photo are not very useful. The discussion of possible effects of jets of gas makes the scale issue even more curious.

    Any source with better numbers?

    The variation in the sharpness of the edges also looks curious. The left side, with the complex corner, have sharper delineations that the right and top. Almost like it was a chain of events, rather than a localized effect from a given location. Yet this is pure speculation, lacking even a basic knowledge of scale here.
     
  7. Jul 3, 2010 #6
    If you consider the birth of a hypergiant star, it could very well disrupt formation around it, and "blow" the remains clear. Given time, you would have radiation, and little else. Perhaps there is a black hole in the center of that... hole... but it is not surrounded by anything, and therefore is not detectable. As large as that region is, maybe there is no lensing that can be detected. This is also pure speculation, but... how many things could cause that, aside from a random "hole".

    Maybe it's a polar jet oriented at an angle, with the star that caused it originally obscured by dust. The opposite hole might also be obscured if the angle is correct. I wish I could draw worth a damn, but I think you get the idea. Still, without scale that could be a preposterous posit on my part.
     
  8. Jul 4, 2010 #7

    jimgraber

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    my wan,
    Here is the real professional article:
    http://arxiv.org/PS_cache/arxiv/pdf/1005/1005.2202v1.pdf
    It is very small and very nearby by astronomical standards,
    about one sixteenth of a light year across and about five hundred light years away,
    if my quick rough calculations are correct.
    Just a small hole in a dust cloud.
    Also, they say it should only last a few ten thousands of years unless there is a wind or jet that keeps cleaning it out.
    Best,
    Jim Graber
     
  9. Jul 4, 2010 #8
    That was a good read, but it still sounds as though time and observation are needed to make more than a highly educated guess.
     
  10. Jul 5, 2010 #9
    Thanks, much better.
     
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