What is Quark-star?
'''Quark-star''' is [[Hypothesis|hypothetical]] celestial object that is intermediate in density between a neutron star and [[black hole]], as the remnant of a massive [[neutron star]] that has collapsed with gravitational pressure sufficient to reduce all constituent particles to [[Strange quark|strange quarks]].<ref>{{Cite web|title=Quark star dictionary definition {{!}} quark star defined|url=https://www.yourdictionary.com/quark-star|access-date=2020-09-30|website=www.yourdictionary.com}}</ref><ref>{{Cite web|title=Definition of quark star {{!}} Dictionary.com|url=https://www.dictionary.com/browse/quark-star|access-date=2020-09-30|website=www.dictionary.com|language=en}}</ref> Quark-stars can be smaller than 11 kilometers in diameter.<ref>{{Cite book|url=http://dx.doi.org/10.1007/3-540-45792-5_3|title=Lectures on Quark Matter|last=Alford|first=Mark|publisher=Springer Berlin Heidelberg|isbn=978-3-540-43234-0|location=Berlin, Heidelberg|pages=81–115|doi=10.1007/3-540-45792-5_3 }}</ref> Like neutron stars, quark star are composed of [[Neutron|neutrons]] that have undergone enough pressure by the collapse of the star to have lost their differentiation and disolved into a mass of [[Quark|quarks]] and [[Gluon|gluons]]. The up and down quarks of which neutrons are composed that change into strange quarks, with the resulting strange mattery compacting into an even denser mass than a neutron star. == Related pages == * [[Supermassive black hole]], is a extremetly black hole and massive, most likely is existed in every galactic centre. * [[Quasar]], a active [[Galactic centre]] that is maybe contain the [[supermassive black hole]] * [[Intergalactic star]], is a star that is not in any galaxy. * [[Quasi-star]], a hypothetically star that is form from massive [[neutron star]]. == References == {{reflist}} [[Category:Stars]]