Q star
Hypothetical compact 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 photons, can 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
- Stellar black hole
- Compact star
- Exotic star
- Boson star
- Electroweak star
- Preon star
- Strange star
- Quark star
- Exotic star
References
- ^ *Miller, J. C.; Shahbaz, T.; Nolan, L. A. (1998). "Are Q-stars a serious threat for stellar-mass black hole candidates?". Monthly Notices of the Royal Astronomical Society. 294 (2): L25–L29. arXiv:astro-ph/9708065. Bibcode:1998MNRAS.294L..25M. doi:10.1046/j.1365-8711.1998.01384.x.
- ^ a b Kusenko, Alexander (2006). Properties and signatures of supersymmetric Q-balls. workshop on Exotic Physics with Neutrino Telescopes. Uppsala, Sweden. arXiv:hep-ph/0612159. 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. arXiv:astro-ph/0207270. Bibcode:2002A&A...396L..31A. doi:10.1051/0004-6361:20021645. S2CID 9771972.
- v
- t
- e
Black holes
- BTZ black hole
- Schwarzschild
- Rotating
- Charged
- Virtual
- Kugelblitz
- Supermassive
- Primordial
- Direct collapse
- Rogue
- Malament–Hogarth spacetime
- Micro
- Stellar
- Intermediate-mass
- Supermassive
- Active galactic nucleus
- Quasar
- LQG
- Blazar
- OVV
- Radio-Quiet
- Radio-Loud
- Stellar evolution
- Gravitational collapse
- Neutron star
- Related links
- Tolman–Oppenheimer–Volkoff limit
- White dwarf
- Related links
- Supernova
- Gamma-ray burst
- Binary black hole
- Quark star
- Supermassive star
- Quasi-star
- Supermassive dark star
- X-ray binary
- Astrophysical jet
- Gravitational singularity
- Event horizon
- Photon sphere
- Innermost stable circular orbit
- Ergosphere
- Accretion disk
- Hawking radiation
- Gravitational lens
- Bondi accretion
- M–sigma relation
- Quasi-periodic oscillation
- Thermodynamics
- Bekenstein bound
- Bousso's holographic bound
- Schwarzschild radius
- Spaghettification
- Nonsingular black hole models
- Black star
- Dark star
- Dark-energy star
- Gravastar
- Magnetospheric eternally collapsing object
- Planck star
- Q star
- Fuzzball
- Geon
- Outline of black holes
- Black Hole Initiative
- Black hole starship
- Big Bang
- Big Bounce
- Compact star
- Exotic star
- Gravitational waves
- Gamma-ray burst progenitors
- Gravity well
- Hypercompact stellar system
- Membrane paradigm
- Naked singularity
- Population III star
- Supermassive star
- Quasi-star
- Supermassive dark star
- Rossi X-ray Timing Explorer
- Superluminal motion
- Timeline of black hole physics
- White hole
- Wormhole
- Tidal disruption event
- Planet Nine
- Cygnus X-1
- XTE J1650-500
- XTE J1118+480
- A0620-00
- SDSS J150243.09+111557.3
- Sagittarius A*
- Centaurus A
- Phoenix Cluster
- PKS 1302-102
- OJ 287
- SDSS J0849+1114
- TON 618
- MS 0735.6+7421
- NeVe 1
- Hercules A
- 3C 273
- Q0906+6930
- Markarian 501
- ULAS J1342+0928
- PSO J030947.49+271757.31
- P172+18
- AT2018hyz
- Swift J1644+57
- Category
- Commons
This article about stellar astronomy is a stub. You can help Wikipedia by expanding it. |
- v
- t
- e