Preon star
From Wikipedia, the free encyclopedia
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 neutron stars and black holes. A preon star having the same mass as Earth would be about five meters in diameter.
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, although it seems difficult to explain how such light and compact objects could be formed.
[edit] References
- Johan Hansson and Fredrik Sandin, Preon stars: a new class of cosmic compact objects. Phys. Lett. B 616, 1 (2005).
- Fredrik Sandin, Exotic Phases of Matter in Compact Stars. (May 8, 2005) PDF
[edit] See also
 |
This star-related article is a stub. You can help Wikipedia by expanding it. |
