Logo
Unionpedia
Communication
Get it on Google Play
New! Download Unionpedia on your Android™ device!
Download
Faster access than browser!
 

Exotic star

Index Exotic star

An exotic star is a hypothetical compact star composed of something other than electrons, protons, neutrons, or muons, and balanced against gravitational collapse by degeneracy pressure or other quantum properties. [1]

70 relations: Active galactic nucleus, Anti-de Sitter space, Apple, Astronomical object, Big Bang, Black hole, Boson, Cambridge University Press, Chandra X-ray Observatory, Chiral anomaly, Compact star, Dark matter, Dark matter halo, Dark star (Newtonian mechanics), De Sitter space, Decomposition, Degenerate matter, Density, Down quark, Electron, Electroweak interaction, Energy density, Event horizon, Exotic matter, Fermion, Fermionic condensate, Galaxy, Gamma ray, Glueball, Gravitational collapse, Gravitational lens, Gravitational-wave astronomy, Gravity, Higgs boson, Large Hadron Collider, Lepton, MIT Technology Review, Muon, Neutron, Neutron star, Neutronium, New Scientist, Nucleon, Particle accelerator, Physical Review, Physics beyond the Standard Model, Planck units, Preon, Preon star, Proton, ..., Q star, QCD matter, Quantum, Quark, Quark star, Quark–gluon plasma, Radiation pressure, RX J1856.5-3754, Schwarzschild radius, Science Daily, Softpedia, Spacetime, Star, Strange matter, Strange quark, Supernova, Uncertainty principle, Up quark, Werner Heisenberg, 3C 58. Expand index (20 more) »

Active galactic nucleus

An active galactic nucleus (AGN) is a compact region at the center of a galaxy that has a much higher than normal luminosity over at least some portion—and possibly all—of the electromagnetic spectrum, with characteristics indicating that the excess luminosity is not produced by stars.

New!!: Exotic star and Active galactic nucleus · See more »

Anti-de Sitter space

In mathematics and physics, n-dimensional anti-de Sitter space (AdSn) is a maximally symmetric Lorentzian manifold with constant negative scalar curvature.

New!!: Exotic star and Anti-de Sitter space · See more »

Apple

An apple is a sweet, edible fruit produced by an apple tree (Malus pumila).

New!!: Exotic star and Apple · See more »

Astronomical object

An astronomical object or celestial object is a naturally occurring physical entity, association, or structure that exists in the observable universe.

New!!: Exotic star and Astronomical object · See more »

Big Bang

The Big Bang theory is the prevailing cosmological model for the universe from the earliest known periods through its subsequent large-scale evolution.

New!!: Exotic star and Big Bang · See more »

Black hole

A black hole is a region of spacetime exhibiting such strong gravitational effects that nothing—not even particles and electromagnetic radiation such as light—can escape from inside it.

New!!: Exotic star and Black hole · See more »

Boson

In quantum mechanics, a boson is a particle that follows Bose–Einstein statistics.

New!!: Exotic star and Boson · See more »

Cambridge University Press

Cambridge University Press (CUP) is the publishing business of the University of Cambridge.

New!!: Exotic star and Cambridge University Press · See more »

Chandra X-ray Observatory

The Chandra X-ray Observatory (CXO), previously known as the Advanced X-ray Astrophysics Facility (AXAF), is a Flagship-class space observatory launched on STS-93 by NASA on July 23, 1999.

New!!: Exotic star and Chandra X-ray Observatory · See more »

Chiral anomaly

In physics, a chiral anomaly is the anomalous nonconservation of a chiral current.

New!!: Exotic star and Chiral anomaly · See more »

Compact star

In astronomy, the term "compact star" (or "compact object") refers collectively to white dwarfs, neutron stars, and black holes.

New!!: Exotic star and Compact star · See more »

Dark matter

Dark matter is a theorized form of matter that is thought to account for approximately 80% of the matter in the universe, and about a quarter of its total energy density.

New!!: Exotic star and Dark matter · See more »

Dark matter halo

A dark matter halo is a hypothetical component of a galaxy that envelops the galactic disc and extends well beyond the edge of the visible galaxy.

New!!: Exotic star and Dark matter halo · See more »

Dark star (Newtonian mechanics)

A dark star is a theoretical object compatible with Newtonian mechanics that, due to its large mass, has a surface escape velocity that equals or exceeds the speed of light.

New!!: Exotic star and Dark star (Newtonian mechanics) · See more »

De Sitter space

In mathematics and physics, a de Sitter space is the analog in Minkowski space, or spacetime, of a sphere in ordinary Euclidean space.

New!!: Exotic star and De Sitter space · See more »

Decomposition

Decomposition is the process by which organic substances are broken down into simpler organic matter.

New!!: Exotic star and Decomposition · See more »

Degenerate matter

Degenerate matter is a highly dense state of matter in which particles must occupy high states of kinetic energy in order to satisfy the Pauli exclusion principle.

New!!: Exotic star and Degenerate matter · See more »

Density

The density, or more precisely, the volumetric mass density, of a substance is its mass per unit volume.

New!!: Exotic star and Density · See more »

Down quark

The down quark or d quark (symbol: d) is the second-lightest of all quarks, a type of elementary particle, and a major constituent of matter.

New!!: Exotic star and Down quark · See more »

Electron

The electron is a subatomic particle, symbol or, whose electric charge is negative one elementary charge.

New!!: Exotic star and Electron · See more »

Electroweak interaction

In particle physics, the electroweak interaction is the unified description of two of the four known fundamental interactions of nature: electromagnetism and the weak interaction.

New!!: Exotic star and Electroweak interaction · See more »

Energy density

Energy density is the amount of energy stored in a given system or region of space per unit volume.

New!!: Exotic star and Energy density · See more »

Event horizon

In general relativity, an event horizon is a region in spacetime beyond which events cannot affect an outside observer.

New!!: Exotic star and Event horizon · See more »

Exotic matter

In physics, exotic matter is matter that somehow deviates from normal matter and has "exotic" properties.

New!!: Exotic star and Exotic matter · See more »

Fermion

In particle physics, a fermion is a particle that follows Fermi–Dirac statistics.

New!!: Exotic star and Fermion · See more »

Fermionic condensate

A fermionic condensate is a superfluid phase formed by fermionic particles at low temperatures.

New!!: Exotic star and Fermionic condensate · See more »

Galaxy

A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter.

New!!: Exotic star and Galaxy · See more »

Gamma ray

A gamma ray or gamma radiation (symbol γ or \gamma), is penetrating electromagnetic radiation arising from the radioactive decay of atomic nuclei.

New!!: Exotic star and Gamma ray · See more »

Glueball

In particle physics, a glueball (also gluonium, gluon-ball) is a hypothetical composite particle.

New!!: Exotic star and Glueball · See more »

Gravitational collapse

Gravitational collapse is the contraction of an astronomical object due to the influence of its own gravity, which tends to draw matter inward toward the center of gravity.

New!!: Exotic star and Gravitational collapse · See more »

Gravitational lens

A gravitational lens is a distribution of matter (such as a cluster of galaxies) between a distant light source and an observer, that is capable of bending the light from the source as the light travels towards the observer.

New!!: Exotic star and Gravitational lens · See more »

Gravitational-wave astronomy

Gravitational-wave astronomy is an emerging branch of observational astronomy which aims to use gravitational waves (minute distortions of spacetime predicted by Einstein's theory of general relativity) to collect observational data about objects such as neutron stars and black holes, events such as supernovae, and processes including those of the early universe shortly after the Big Bang.

New!!: Exotic star and Gravitational-wave astronomy · See more »

Gravity

Gravity, or gravitation, is a natural phenomenon by which all things with mass or energy—including planets, stars, galaxies, and even light—are brought toward (or gravitate toward) one another.

New!!: Exotic star and Gravity · See more »

Higgs boson

The Higgs boson is an elementary particle in the Standard Model of particle physics.

New!!: Exotic star and Higgs boson · See more »

Large Hadron Collider

The Large Hadron Collider (LHC) is the world's largest and most powerful particle collider, the most complex experimental facility ever built and the largest single machine in the world.

New!!: Exotic star and Large Hadron Collider · See more »

Lepton

In particle physics, a lepton is an elementary particle of half-integer spin (spin) that does not undergo strong interactions.

New!!: Exotic star and Lepton · See more »

MIT Technology Review

MIT Technology Review is a magazine published by the Massachusetts Institute of Technology.

New!!: Exotic star and MIT Technology Review · See more »

Muon

The muon (from the Greek letter mu (μ) used to represent it) is an elementary particle similar to the electron, with an electric charge of −1 e and a spin of 1/2, but with a much greater mass.

New!!: Exotic star and Muon · See more »

Neutron

| magnetic_moment.

New!!: Exotic star and Neutron · See more »

Neutron star

A neutron star is the collapsed core of a large star which before collapse had a total of between 10 and 29 solar masses.

New!!: Exotic star and Neutron star · See more »

Neutronium

Neutronium (sometimes shortened to neutrium, also referred to as neutrite) is a hypothetical substance composed purely of neutrons.

New!!: Exotic star and Neutronium · See more »

New Scientist

New Scientist, first published on 22 November 1956, is a weekly, English-language magazine that covers all aspects of science and technology.

New!!: Exotic star and New Scientist · See more »

Nucleon

In chemistry and physics, a nucleon is either a proton or a neutron, considered in its role as a component of an atomic nucleus.

New!!: Exotic star and Nucleon · See more »

Particle accelerator

A particle accelerator is a machine that uses electromagnetic fields to propel charged particles to nearly light speed and to contain them in well-defined beams.

New!!: Exotic star and Particle accelerator · See more »

Physical Review

Physical Review is an American peer-reviewed scientific journal established in 1893 by Edward Nichols.

New!!: Exotic star and Physical Review · See more »

Physics beyond the Standard Model

Physics beyond the Standard Model (BSM) refers to the theoretical developments needed to explain the deficiencies of the Standard Model, such as the origin of mass, the strong CP problem, neutrino oscillations, matter–antimatter asymmetry, and the nature of dark matter and dark energy.

New!!: Exotic star and Physics beyond the Standard Model · See more »

Planck units

In particle physics and physical cosmology, Planck units are a set of units of measurement defined exclusively in terms of five universal physical constants, in such a manner that these five physical constants take on the numerical value of 1 when expressed in terms of these units.

New!!: Exotic star and Planck units · See more »

Preon

In particle physics, preons are point particles, conceived of as subcomponents of quarks and leptons.

New!!: Exotic star and Preon · See more »

Preon star

A preon star is a theoretical type of compact star made of preons, which are "point-like" particles conceived to be subcomponents of quarks and leptons.

New!!: Exotic star and Preon star · See more »

Proton

| magnetic_moment.

New!!: Exotic star and Proton · See more »

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.

New!!: Exotic star and Q star · See more »

QCD matter

Quark matter or QCD matter refers to any of a number of theorized phases of matter whose degrees of freedom include quarks and gluons.

New!!: Exotic star and QCD matter · See more »

Quantum

In physics, a quantum (plural: quanta) is the minimum amount of any physical entity (physical property) involved in an interaction.

New!!: Exotic star and Quantum · See more »

Quark

A quark is a type of elementary particle and a fundamental constituent of matter.

New!!: Exotic star and Quark · See more »

Quark star

A quark star is a hypothetical type of compact exotic star, where extremely high temperature and pressure has forced nuclear particles to form a continuous state of matter that consists primarily of free quarks, which can be modeled using the Calabi–Yau manifold.

New!!: Exotic star and Quark star · See more »

Quark–gluon plasma

A quark–gluon plasma (QGP) or quark soup is a state of matter in quantum chromodynamics (QCD) which exists at extremely high temperature and/or density.

New!!: Exotic star and Quark–gluon plasma · See more »

Radiation pressure

Radiation pressure is the pressure exerted upon any surface due to the exchange of momentum between the object and the electromagnetic field.

New!!: Exotic star and Radiation pressure · See more »

RX J1856.5-3754

RX J1856.5-3754 (also called RX J185635-3754, RX J185635-375, and various other designations) is a nearby neutron star in the constellation Corona Australis.

New!!: Exotic star and RX J1856.5-3754 · See more »

Schwarzschild radius

The Schwarzschild radius (sometimes historically referred to as the gravitational radius) is a physical parameter that shows up in the Schwarzschild solution to Einstein's field equations, corresponding to the radius defining the event horizon of a Schwarzschild black hole.

New!!: Exotic star and Schwarzschild radius · See more »

Science Daily

Science Daily is an American website that aggregates press releases and publishes lightly edited press releases (a practice called churnalism) about science, similar to Phys.org and EurekAlert!.

New!!: Exotic star and Science Daily · See more »

Softpedia

Softpedia is a website from Romania that indexes information and provides primarily software information and downloads.

New!!: Exotic star and Softpedia · See more »

Spacetime

In physics, spacetime is any mathematical model that fuses the three dimensions of space and the one dimension of time into a single four-dimensional continuum.

New!!: Exotic star and Spacetime · See more »

Star

A star is type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.

New!!: Exotic star and Star · See more »

Strange matter

Strange matter is a particular form of quark matter, usually thought of as a "liquid" of up, down and strange quarks.

New!!: Exotic star and Strange matter · See more »

Strange quark

The strange quark or s quark (from its symbol, s) is the third lightest of all quarks, a type of elementary particle.

New!!: Exotic star and Strange quark · See more »

Supernova

A supernova (plural: supernovae or supernovas, abbreviations: SN and SNe) is a transient astronomical event that occurs during the last stellar evolutionary stages of a star's life, either a massive star or a white dwarf, whose destruction is marked by one final, titanic explosion.

New!!: Exotic star and Supernova · See more »

Uncertainty principle

In quantum mechanics, the uncertainty principle (also known as Heisenberg's uncertainty principle) is any of a variety of mathematical inequalities asserting a fundamental limit to the precision with which certain pairs of physical properties of a particle, known as complementary variables, such as position x and momentum p, can be known.

New!!: Exotic star and Uncertainty principle · See more »

Up quark

The up quark or u quark (symbol: u) is the lightest of all quarks, a type of elementary particle, and a major constituent of matter.

New!!: Exotic star and Up quark · See more »

Werner Heisenberg

Werner Karl Heisenberg (5 December 1901 – 1 February 1976) was a German theoretical physicist and one of the key pioneers of quantum mechanics.

New!!: Exotic star and Werner Heisenberg · See more »

3C 58

3C58 or 3C 58 is a pulsar and supernova remnant within the Milky Way that is possibly associated with the supernova SN 1181.

New!!: Exotic star and 3C 58 · See more »

Redirects here:

Boson Star, Boson star, Preon stars, Q-Star.

References

[1] https://en.wikipedia.org/wiki/Exotic_star

OutgoingIncoming
Hey! We are on Facebook now! »