Re: black holes and singularity
From: Ken S. Tucker (dynamics_at_vianet.on.ca)
Date: 11/10/04
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Date: 10 Nov 2004 07:57:24 -0800
Creighton Hogg <wchogg@hep.wisc.edu> wrote in message news:<Pine.LNX.4.44.0411091942560.24859-100000@dill.hep.wisc.edu>...
> On 9 Nov 2004, Ken S. Tucker wrote:
>
> > dubious@radioactivex.lebesque-al.net (Bilge) wrote in message news:<slrncp1q7v.17d.dubious@radioactivex.lebesque-al.net>...
> > > Ken S. Tucker:
>
> > > >Part of the discussion involves crudely, "baryons" falling into
> > > >a BH and coming out photons, so the question of baryon and lepton
> > > >conservation is considered at or *near* an event horizon. Now
> > > >consider the physics at the center of a neutron star compared to
> > > >physics *near* an event horizon.
> > >
> > > The physics at the center of neutron star is not much different than
> > > the physics at the center of a heavy nucleus.
> >
> > Ok, physics is physics, but there are compressions,
> > pressures, stresses and temperatures many magnitudes
> > beyond the center of a heavy nucleus in a neutron star.
>
> Actually, the predicted temperature at the center of a neutron star is < 1
> GeV. It is definately less than the temperature of the thermalized system
> of quarks that you get from heavy ion collisiosn such as in RHIC. That's
> the reason why I suggested reading about the heavy ion collision
> experiments earlier in this thread. We haven't seen baryon number
> violation in them, and if it was in the neutron star cores, we would have
> already.
A collision reaction is not the same as a pressure
induced reaction because of time. You need lots of
"h" (action, Plancks constant h= 6.6...ergs*seconds).
Think of it this way, you can pass your hand threw
a very hot flame quickly with no reaction, like
putting your finger threw a candle flame. But put
your finger in near boiling water for a few seconds
and you will get likely get seriously burned.
Action = Energy * Time
Accelerators are energy machines, not action machines,
neutron stars are action machines. When matter hits a
neutron star the temperature can reach 10^11 or 10^12 K
see,
www.astro.umd.edu/~miller/nstar.html
and the time of that temperature is measured in seconds.
The temperature of the particles is volume confined by
the pressure, and the time increases.
I conject, neutrons will decay to leptons in that
circumstance, and the pressure to do so is
theoretically available in a neutron star, in
accord with energy conservation, as I've mentioned.
Hence a BH will not physically form.
Regards
Ken S. Tucker
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