Preon star

Preon star

A preon star is a hypothetical compact star made of preons, a group of theoretical subatomic particles that may compose quarks and leptons. Preon stars would be expected to have huge densities, exceeding 1020 g/cm³ — intermediate between quark stars and black holes. A preon star having the same mass as Earth would be about the size of a tennis ball.

Such objects could be detected in principle through gravitational lensing of gamma rays. The presence of preon stars could potentially explain the puzzling observations that lead to the dark matter hypothesis.

Preon stars could originate from supernova explosions or the big bang.

ee also

* compact star
** quark star
** neutron star
** stellar black hole
** Fuzzballs
* degenerate matter
** quark matter
** neutronium
** preon matter

References


*Johan Hansson and Fredrik Sandin, " [http://arxiv.org/abs/astro-ph/0410417 Preon stars: a new class of cosmic compact objects] ". Phys. Lett. B 616, 1 (2005).
*Fredrik Sandin, " [http://epubl.luth.se/1402-1757/2005/25/LTU-LIC-0525-SE.pdf Exotic Phases of Matter in Compact Stars] ". (May 8, 2005) "PDF"
*Johan Hansson, " [http://th-www.if.uj.edu.pl/acta/vol38/pdf/v38p0091.pdf A hierarchy of cosmic compact objects - without black holes] ". Acta Phys.Polon. B38, 91 (2007). "PDF"
*Johan Hansson and Fredrik Sandin, " [http://arxiv.org/abs/astro-ph/0701768 The observational legacy of preon stars - probing new physics beyond the LHC] ".
*J. E. Horvath, " [http://arxiv.org/abs/astro-ph/0702288 Constraints on superdense preon stars and their formation scenarios] ". Astrophys. Space Sci. 307, 419 (2007).
*Fredrik Sandin, " [http://epubl.ltu.se/1402-1544/2007/05/LTU-DT-0705-SE.pdf Exotic Phases of Matter in Compact Stars] ". (2007) "PDF"
*Article in NatureNews : " [http://www.nature.com/news/2007/071130/full/news.2007.292.html Splitting the quark] ". (Nov. 2007)

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