From: Eugene Leitl (Eugene.Leitl@lrz.uni-muenchen.de)
Date: Tue Jul 17 2001 - 05:00:31 MDT
On Mon, 16 Jul 2001 hal@finney.org wrote:
> The 10^12 kg threshold for Hawking radiation/evaporation to be significant
> would correspond to roughly a kilometer-sized chunk of rock, something
> for which a gravitational signature would normally be undetectable.
> So if you can see effects of its gravity, it could always be a black
> hole in a shell, and Hawking evaporation will not be an issue.
Hal, can you look up the hole mass and power radiated for a ~10 kK
radiator?
Apart from the spectral composition (you could use a gas or matter shell
for attenuation) and the total power radiated the interesting problem
would be feeding the thing, preventing it from evaporative runaway. If
they're too small, you can't feed them very efficiently (and of course you
can't come too close).
-- Eugen* Leitl leitl
______________________________________________________________
ICBMTO : N48 10'07'' E011 33'53'' http://www.lrz.de/~ui22204
57F9CFD3: ED90 0433 EB74 E4A9 537F CFF5 86E7 629B 57F9 CFD3
This archive was generated by hypermail 2.1.5 : Sat Nov 02 2002 - 08:08:50 MST