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Black hole in wormhole

  1. Nov 11, 2013 #1
    Hi, two questions
    A) If a black hole travels into a wormhole would it collapse the wormhole?
    B) If a wormhole travels through another wormhole what would happen?
    Thanks for any help.
     
  2. jcsd
  3. Nov 11, 2013 #2

    mfb

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    Without a proper theory about wormholes, this is impossible to answer.
     
  4. Nov 24, 2013 #3
    A) If a black hole travels into a wormhole would it collapse the wormhole?

    Short answer: Generally, yes.
    Longer answer: Depends on the mass of the black hole relative to that of the wormhole. It also depends on the so-called equation of state of the exotic matter that sustains the wormhole. However, as a rule of thumb you would expect a black hole, whose mass is very much smaller than that of the wormhole, not to collapse the wormhole. Conversely, if the black hole's mass is very much larger, it would almost certainly collapse the wormhole.

    B) If a wormhole travels through another wormhole what would happen?

    Here's an excerpt from this Wormhole FAQ

    What would happen if two mouths of the same wormhole were to collide?
    After the collision identical mouths would 1) coalesce, if their masses are positive, or 2) separate, if their masses are negative. Upon coalescing, the wormhole’s shape would be something like the three-dimensional generalization of the surface of an eye screw (Figure 1.2). A traveler could enter the single mouth of the wormhole, travel the length of its interior region, and exit the mouth only to discover that she is back where she started.

    image002.jpg


    Figure 1.2. A wormhole Self Collision. Mouths will likely coalesce.

    The FAQ seems to be taken from The Physics of Stargates -- Parallel Universes, Time Travel and the Enigma of Wormhole Physics by Enrico Rodrigo.
     
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