A preon star is a hypothetical compact star made of preons, a group of theoretical subatomic particles that may compose quarks and leptons. In Astronomy, the term compact star (sometimes compact object) is used to refer collectively to White dwarfs Neutron stars other exotic In Particle physics, preons are postulated "point-like" particles conceived to be subcomponents of Quarks and Leptons The word was coined The word theory has many distinct meanings in different fields of Knowledge, depending on their methodologies and the context of discussion. A subatomic particle is an elementary or composite Particle smaller than an Atom. In Physics, a quark (kwɔrk kwɑːk or kwɑːrk is a type of Subatomic particle. Leptons are a family of fundamental Subatomic particles comprising the Electron, the Muon, and the Tauon (or tau particle as well as their Preon stars would be expected to have huge densities, exceeding 1020 g/cm³ — intermediate between quark stars and black holes. The density of a material is defined as its Mass per unit Volume: \rho = \frac{m}{V} Different materials usually have different For other uses of the words gram or gramme see Gram (disambiguation. A cubic centimetre or cubic centimeter (symbol cm3 —the abbreviation cc, though widely used is deprecated is a commonly used unit of Volume A quark star or strange star is a hypothetical type of Exotic star composed of Quark matter, or Strange matter. A black hole is a theoretical region of space in which the Gravitational field is so powerful that nothing not even Electromagnetic radiation (e A preon star having the same mass as Earth would be about the size of a tennis ball. Mass is a fundamental concept in Physics, roughly corresponding to the Intuitive idea of how much Matter there is in an object EARTH was a short-lived Japanese vocal trio which released 6 singles and 1 album between 2000 and 2001
Such objects could be detected in principle through gravitational lensing of gamma rays. A gravitational lens is formed when the light from a very distant bright source (such as a Quasar) is "bent" around a massive object (such as a cluster of Gamma rays (denoted as &gamma) are a form of Electromagnetic radiation or light emission of frequencies produced by sub-atomic particle interactions The presence of preon stars could potentially explain the puzzling observations that lead to the dark matter hypothesis. In Physics and cosmology, dark matter is hypothetical Matter that does not interact with the electromagnetic force but whose presence can be inferred from
Preon stars could originate from supernova explosions or the big bang, although it seems difficult to explain how such heavy and compact objects could be formed. A supernova (plural supernovae or supernovas) is a stellar Explosion. The Big Bang is the cosmological model of the Universe that is best supported by all lines of scientific evidence and Observation.
See also
References
- Johan Hansson and Fredrik Sandin, Preon stars: a new class of cosmic compact objects. In Astronomy, the term compact star (sometimes compact object) is used to refer collectively to White dwarfs Neutron stars other exotic A quark star or strange star is a hypothetical type of Exotic star composed of Quark matter, or Strange matter. A neutron star is a type of remnant that can result from the Gravitational collapse of a massive Star during a Type II, Type Ib or Type A stellar black hole is a Black hole formed by the Gravitational collapse of a massive Star (20 or more Solar masses, though the exact amount Degenerate matter is matter which has sufficiently high Density that the dominant contribution to its Pressure rises from the Pauli Exclusion Quark matter or QCD matter (see QCD) refers to any of a number of theorized phases of matter whose degrees of freedom include Quarks and Gluons Neutronium is a term originally used in Science fiction and in popular literature to refer to an extremely Dense phase of matter composed primarily of In Particle physics, preons are postulated "point-like" particles conceived to be subcomponents of Quarks and Leptons The word was coined Phys. Lett. B 616, 1 (2005).
- Fredrik Sandin, Exotic Phases of Matter in Compact Stars. (May 8, 2005) PDF
- Johan Hansson, A hierarchy of cosmic compact objects - without black holes. Events 589 - Reccared summons the Third Council of Toledo 1450 - Jack Cade's Rebellion: Kentishmen Year 2005 ( MMV) was a Common year starting on Saturday (link displays full calendar of the Gregorian calendar. Acta Phys. Polon. B38, 91 (2007). PDF
- Johan Hansson and Fredrik Sandin, The observational legacy of preon stars - probing new physics beyond the LHC.
- J. E. Horvath, Constraints on superdense preon stars and their formation scenarios. Astrophys. Space Sci. 307, 419 (2007).
- Fredrik Sandin, Exotic Phases of Matter in Compact Stars. (2007) PDF
- Article in NatureNews : Splitting the quark. Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. (Nov. 2007)
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