In article <
ee23b686-6c07-4484-87f6-bd615c283945@googlegroups.com>, <
raymond.yohros@gmail.com> writes:
I read somewhere that it was possible to
see some BH in nature that do not spin.
How exactly can this be when
everything in nature always shows that
any vortex formation ends up with a spin?
r.y
[[Mod. note -- It seems very likely that all black holes in nature do
indeed spin. But it might be that some spin quite slowly.
-- jt]]
I don't know if this would necessarily be true for primordial black
holes. Of course, we don't know whether they exist, and there are
various theories about their formation. Interestingly, if LIGO detects
any low-mass black holes (not much lower than those already detected),
they will probably be primordial, since there is no other way known to
form them.
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