Reply to post: A basic misunderstanding of supernovae

Speed of light slower than we thought? Probably not

Anonymous Coward
Mushroom

A basic misunderstanding of supernovae

Franson has based his work on a conundrum raised by an old supernova explosion: that when supernova SN 1987A was observed in 1987, neutrinos were spotted 7.7 hours before the event became visible when photons arrived.

While we do not completely understand the physics underlying a supernova (the simulations show the shock wave stalling a few milliseconds after it rebounds from the collapsed core), scientists do pretty much agree that:

1. The neutrinos are generated during the initial core collapse;

2. The photons are generated when the shock wave reaches the surface of the star; and

3. The two preceding events are separated by several hours.

I guess Franson must have assumed that everything happens instantly. Just shows what an idiot he is.

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