Q star

Not to be confused with quark 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. The Q stands for a conserved particle number. A Q-Star may be mistaken for a stellar black hole.

Types of Q-stars

• SUSY Q-ball
• B-ball, stable Q-balls with a large baryon number B. They may exist in neutron stars that have absorbed Q-ball(s).

See also

• Black hole
  • Stellar black hole
• Compact star
  • Exotic star
    • Preon star
    • Quark starajay

References

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External links

• Abstract, Are Q-stars a serious threat for stellar-mass black hole candidates?, Miller J.C., Shahbaz T., Nolan L.A, 1997
• Abstract, No observational proof of the black-hole event-horizon, Marek A. Abramowicz, Wlodek Kluzniak, Jean-Pierre Lasota, 2002

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Observation data Epoch {{{epoch}}}      Equinox
Constellation	{{{3}}}
{{{component1}}}
Right ascension	{{{ra1}}}
Declination	{{{dec1}}}
Apparent magnitude (V)	{{{appmag_v1}}}
{{{component2}}}
Right ascension	{{{ra2}}}
Declination	{{{dec2}}}
Apparent magnitude (V)	{{{appmag_v2}}}
Characteristics
Evolutionary stage	{{{9}}}
Spectral type	{{{7}}}
Astrometry
Distance	{{{4}}} ly
Details
Radius	{{{5}}} R☉
Diameter	{{{5}}} D☉
Luminosity (bolometric)	{{{11}}} L☉
Temperature	{{{8}}} K
Other designations
{{{1}}}, {{{2}}}

{{{1}}}, also known as {{{2}}}, is a star located in the constellation {{{3}}}. It is located {{{4}}} light years away from the Earth. {{{1}}} has a diameter of {{{5}}} D_☉, making it around the size of the orbit of {{{6}}}. {{{1}}} has a stellar class of {{{7}}} and a temperature of {{{8}}} degrees Kelvin; it is a {{{9}}} that is currently burning {{{10}}} within its core. {{{1}}} is around {{{11}}} times brighter than the Sun. {{{12}}}{{{13}}}

References

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As a reminder, article comments are only for discussions on how to improve the article. Please direct other comments to a user's talk page. Please be formal and do not use excessive uppercase. Please be advised you may receive an automatic block if you break the article comments policy. For information regarding what is acceptable/not acceptable in article comments, please message Joey ^(talk), ynoss ^(talk), or Nussun ^(talk).