Do Strange Stars and Strange Black Holes Really Exist?

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Discussion Overview

The discussion centers around the existence of strange stars and strange black holes, exploring their theoretical foundations, potential observational evidence, and the nature of their composition. Participants examine the implications of strange matter in astrophysics, including its density compared to neutron stars and its role in stellar evolution.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation

Main Points Raised

  • Some participants question whether strange stars are theoretical constructs or if they have been observed, noting their composition of up, down, and strange quarks.
  • Others mention that strange stars have been theorized for several years, with recent claims of evidence suggesting that certain massive stars could be made of strange matter, though this remains controversial.
  • A participant references a paper discussing protostrange stars, which are proposed to be the progenitors of strange stars, indicating ongoing research in this area.
  • One post highlights the star 3C58 as a candidate for containing strange matter, suggesting that it may consist of various quarks, not limited to strange quarks alone.
  • There is a discussion about the mass relationships of strange stars and neutron stars, with strange stars having mass proportional to R^3, while neutron stars have mass proportional to 1/R^3, indicating significant differences in their properties.
  • Uncertainty is expressed regarding the origins of high magnetic field strengths in both neutron and strange stars, with no definitive evidence confirming the existence of strange stars as of yet.
  • A question is raised about the possibility of strange black holes originating from strange stars, suggesting a potential connection between the two concepts.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the existence of strange stars or strange black holes, with multiple competing views and ongoing debates regarding their theoretical status and observational evidence.

Contextual Notes

Limitations include the dependence on theoretical models and the lack of definitive observational evidence for strange stars and strange black holes. The discussion also reflects uncertainty about the implications of strange matter in astrophysical contexts.

kurious
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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?
 
Astronomy news on Phys.org
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.
 
arXiv:astro-ph/0403515 v1 22 Mar 2004

the debate goes on!
 
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"
 
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.
 
Could strange black holes propagate from strange stars?
 

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