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I don't think anything short of a collision of two stars could cause any such violence, and the odds against that are enormously long. I have never heard of any observation of such an event.
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The closest I can think of would be the unfortunate companion of the Black Widow pulsar, being eroded by its ferocious high-energy wind (but I vaguely recall that to be well below a solar mass, at least these days). Beyond that in both mass and distance are the handful of X-ray flares from otherwise normal galactic nuclei, which fit in energy and duration with expectations for the tidal disruption and subsequent accretion of a star by a previously quiescent massive central black hole.
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A third rate theory forbids A second rate theory explains after the fact A first rate theory predicts...A. Lomonosov |
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Extreme Stars, At the Edge of Creation [2001] -- by James Kaler
...will increase your understanding of stellar evolution and diversity by orders of magnitude.
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Everyone is entitled to his own opinion, but not his own facts. |
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"The beauty of that discussion of averages is that you don't have to be an expert in Apollo or in photography in order to see where this time study "analysis" breaks down. You just have to be, well...not an idiot." -JayUtah |
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My guess is from 10 million light years away, class M, K and G stars are invisable. If one was disrupted, it might look like an O, B, A or F star (for a few hours?) until the wound healed, or the stars rotation turned it, so about the normal number of photons were hitting our telescope lens = essentially none. Since collisions are very rare, perhaps none have occured within 10 million light years for us to observe.
I suppose the neutron star that collided with Earth, passed though the diameter and kept going. If exiting at 0.0001 c, I would think a very large exit hole and considerable heating of most of the rest of Earth. Neil Last edited by neilzero : 19-May-2008 at 02:56 AM. Reason: modest changed to considerable |
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Inside roche limit LONG before impact? At one million miles per hour, maybe one hour: I think Earth would reassemble much as before minutes after the neutron star was a million miles past penetration, plus out going would tend to reverse the disassembly while incoming. Probably no human survivors and it would be worse if the impact occured at minimum possible speed = 15 kilometers per second?
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