Q star
A Q-star, also known as a grey hole, is a hypothetical type of a compact, heavy neutron star with an exotic state of matter. Such a star can be smaller than the progenitor star's Schwarzschild radius and have a gravitational pull so strong that some light, but not all light, cannot escape.[citation needed] The Q stands for a conserved particle number. A Q-star may be mistaken for a stellar black hole.[1]
Types of Q-stars
- Q-ball[2]
- B-ball, stable Q-balls with a large baryon number B. They may exist in neutron stars that have absorbed Q-ball(s).[2]
See also
- Black hole
- Compact star
- Exotic star
- Boson star
- Electroweak star
- Preon star
- Strange star
- Quark star
- Exotic star
References
- .
- ^ Bibcode:2006hep.ph...12159K.
Further reading
- Abramowicz, M. A.; Kluźniak, W.; Lasota, J.-P. (2002). "No observational proof of the black-hole event-horizon". Astronomy & Astrophysics. 396 (3): L31–L34. S2CID 9771972.
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