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http://profmattstrassler.com/2011/09/20/supernovas-and-neutrinos/ This website confirms what you said about the neutrinos from the 1987 supernova arriving before the light from the supernova. It doesn't specifically say which detectors detected the neutrinos. The reason the neutrinos reached earth before the light is not because the neutrinos were ...

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You would expect type Ia supernovas to be standard candles in neutrinos for the same reason they work that way in light. Alas, with the current detector packages they are only good in our local group (this would be considerably improved with the implementation of a GADZOOKS!-like scheme to gadolinium-doped superK or by several proposed but very expensive ...

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The time delay between neutrinos and photons does not tell us directly about the absolute mass of the neutrinos. The time delay between a neutrino of mass $m$ and a massless neutrino does: $$\Delta t = \frac{d}{v} - \frac{d}{c} \approx 0.5 \left(\frac{mc^2}{E}\right)^2 d,$$ where $\Delta t$ is the time delay in seconds, $v \approx ... 8 How do I stay alive to be killed by neutrinos? You wouldn't. The point is being made that even the beam of neutrinos with a supernova at one astronomical unit distance would be intense enough that enough of them would interact with the matter of your body to be lethal. So even the neutrinos would get you if all the other stuff - notably$\gamma\$s didn't. ...

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