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Old August 30th 05 posted to sci.astro,sci.physics
N:dlzc D:aol T:com \(dlzc\)
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Posts: 6,805
Default Could the universe be older and bigger than we can see?

Dear Sam Wormley:

"Sam Wormley" wrote in message
news:70RQe.292294$_o.100507@attbi_s71...
N:dlzc D:aol T:com (dlzc) wrote:


Stable neutron stars are 0.8 solar masses. How far down will
you define "too small to detect"?


Tell me where you get this figure of 0.8 solar masses for
stable
neutron stars. Thanks.


http://zebu.uoregon.edu/~imamura/122/mar13/bhform.html
.... greater than 2-3 solar masses are unstable

http://www-astronomy.mps.ohio-state....3/extreme.html
.... neutron degeneracy pressure can sustain 1.2 -2 solar masses

http://www.ma.utexas.edu/mp_arc/c/05/05-190.pdf
.... graph on page 28 (still about 0.5 to 2.2 solar masses)

I may have remembered a particular neutron star's mass, rather
than the "only stable neutron star mass" "or the upper limit on
neutron star mass is". Sorry for any confusion this might have
created.

David A. Smith


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