strange stars and neutron stars

[kurious]

Do strange stars exist?
Apparently they are denser than neutron stars and consist of
up down and strange quarks.
But are they theory or reality?

[selfAdjoint]

They have existed as theory for several years. Last year astronomers thought they had evidence that two known stars were so massive they had to be made of strange matter (as you say, free quarks). There was some controversy over this claim, and I don't know how it stands today.

[kurious]

arXiv:astro-ph/0403515 v1 22 Mar 2004

the debate goes on!

[meteor]

This paper gives some information about protostrange stars, the objects that give origin to strange stars
http://arxiv.org/abs/astro-ph/0101011
"The birth of strange stars and their dynamo-originated magnetic fields"

[Labguy]

The star 3C58 is a candidate for "strange" matter, but not necessarily just Strange quarks, possibly all (except "anti") quarks. Two little notes on this star are at:

http://www.innerx.net/personal/tsmith/13Mar41.html#neutronquarkblack and:

http://spaceflightnow.com/news/n0204/11newmatter/

[kurious]

Strange stars have a mass proportional to R^3 and neutron stars have
a mass proportional to 1 / R ^ 3. What a difference!
It seems that the origin of the high magnetic field strength of neutron and strange stars is uncertain. And no-one can yet say for sure they have found a strange star.

[ElectroBurger]

Could strange black holes propagate from strange stars?