--- In [email protected], off_world_beings <[EMAIL PROTECTED]> 
wrote:
>
> --- In [email protected], "authfriend" <jstein@> wrote:
> >
> > --- In [email protected], "jim_flanegin" <jflanegi@> 
> > wrote:
> > >
> > > --- In [email protected], "Rick Archer" <rick@> wrote:
> > <snip>
> > > I don't know the exact time Doug died or wether it coincided
> > > at all with me walking out the dome around 6.45 - 7pm in the 
> > > evening, but that is my story of having seen (maybe) a supernova.
> > > > 
> > > > OffWorld
> > > > 
> > > > Cool story, but I don't think supernovae blow up and fizz
> > > > out in a matter of seconds. 
> > > 
> > > Not even one? In the whole wide entire universe?
> > 
> > Supernovae are *stars*, remember...too much Stuff
> > involved to be done with that fast.
> > 
> > Could've been something even more exotic, but not
> > a supernova.>>
> 
> 
> The speed of the flare up would entirely depend upon the size of the 
> star compared to the forces around it, and how far it into space it 
> flared up. If the distance that the expansion occured was only a 
> short one and the power behind the initial implosion and consequent 
> explosion were very high, plus the environmental forces in the region 
> (including gravity) did not restrict the expansion phase, then 
> certainly short duration supernova's are possible and probably very 
> common.

Are those still called "supernovae?"

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