Logo
Unionpedia
Communication
Get it on Google Play
New! Download Unionpedia on your Android™ device!
Free
Faster access than browser!
And Ads-free!

Exotic star

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

55 relations: Active galactic nucleus, Apple, Astronomical object, Big Bang, Black hole, Boson, Carlo Rovelli, Chandra X-ray Observatory, Chiral anomaly, Compact star, Dark matter, Dark star (Newtonian mechanics), Degenerate matter, Density, Down quark, Electron, Electroweak interaction, Energy density, Event horizon, Exotic matter, Fermion, Gamma ray, Glueball, Gravitational collapse, Gravitational lens, Gravity, Kilogram per cubic metre, Lepton, Loop quantum gravity, MIT Technology Review, Muon, Neutron, Neutron star, Neutronium, New Scientist, Nucleon, Orders of magnitude (density), Particle accelerator, Planck units, Preon, Proton, Q star, QCD matter, Quark, Quark star, Radiation pressure, RX J1856.5-3754, Schwarzschild radius, Science Daily, Softpedia, ..., Star, Strange matter, Supernova, Up quark, 3C 58. Expand index (5 more) »

Active galactic nucleus

An active galactic nucleus (AGN) is a compact region at the centre of a galaxy that has a much higher than normal luminosity over at least some portion – and possibly all – of the electromagnetic spectrum.

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

Apple

The apple tree (Malus domestica) is a deciduous tree in the rose family best known for its sweet, pomaceous fruit, the apple.

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 current science has demonstrated to exist 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 geometrically defined region of spacetime exhibiting such strong gravitational effects that nothing—including 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 »

Carlo Rovelli

Carlo Rovelli (born 3 May 1956) is an Italian theoretical physicist and writer who has worked in Italy and the USA, and currently works in France.

New!!: Exotic star and Carlo Rovelli · See more »

Chandra X-ray Observatory

The Chandra X-ray Observatory (CXO), previously known as the Advanced X-ray Astrophysics Facility (AXAF), is a 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 (sometimes compact object) is used to refer collectively to white dwarfs, neutron stars, other exotic dense stars, and black holes.

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

Dark matter

Dark matter is a hypothetical kind of matter that cannot be seen with telescopes but would account for most of the matter in the universe.

New!!: Exotic star and Dark matter · 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 »

Degenerate matter

Degenerate matter in physics is a collection of free, non-interacting particles with a pressure and other physical characteristics determined by quantum mechanical effects.

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, with a negative elementary electric 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 or mass, though the latter is more accurately termed specific energy.

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

Event horizon

In general relativity, an event horizon is a boundary 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 (a name coined by Paul Dirac from the surname of Enrico Fermi) is any particle characterized by Fermi–Dirac statistics.

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

Gamma ray

Gamma radiation, also known as gamma rays, and denoted by the Greek letter γ, refers to electromagnetic radiation of an extremely high frequency and therefore consists of high-energy photons.

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

Glueball

In particle physics, a glueball is a hypothetical composite particle.

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

Gravitational collapse

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

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

Gravitational lens

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

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

Gravity

Gravity or gravitation is a natural phenomenon by which all things with mass are brought towards (or 'gravitate' towards) one another including stars, planets, galaxies and even light and sub-atomic particles.

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

Kilogram per cubic metre

Kilogram per cubic metre is an SI derived unit of density, defined by mass in kilograms divided by volume in cubic metres.

New!!: Exotic star and Kilogram per cubic metre · See more »

Lepton

A lepton is an elementary, half-integer spin (spin) particle that does not undergo strong interactions, but is subject to the Pauli exclusion principle.

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

Loop quantum gravity

Loop quantum gravity (LQG) is a theory that attempts to describe the quantum properties of the universe and gravity.

New!!: Exotic star and Loop quantum gravity · 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 electric charge of −1 e and a 2, but with a much greater mass.

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

Neutron

The neutron is a subatomic particle, symbol or, with no net electric charge and a mass slightly larger than that of a proton.

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

Neutron star

A neutron star is a type of compact star that can result from the gravitational collapse of a massive star after a supernova.

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

Neutronium

Neutronium (sometimes shortened to neutrium) is a proposed name for a substance composed purely of neutrons.

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

New Scientist

New Scientist is a UK-based weekly non-peer-reviewed English-language international science magazine, founded in 1956.

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

Nucleon

In chemistry and physics, a nucleon is one of the particles that makes up the atomic nucleus.

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

Orders of magnitude (density)

No description.

New!!: Exotic star and Orders of magnitude (density) · See more »

Particle accelerator

A particle accelerator is a device that uses electromagnetic fields to propel charged particles to high speeds and to contain them in well-defined beams.

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

Planck units

In physics, Planck units are physical units of measurement defined exclusively in terms of five universal physical constants listed below, 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-like" particles, conceived to be subcomponents of quarks and leptons.

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

Proton

| magnetic_moment.

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

Q star

A Q-Star, also known as a gray hole, is 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 »

Quark

A quark is an 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 composed of quark matter.

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

Radiation pressure

Radiation pressure is the pressure exerted upon any surface exposed to electromagnetic radiation.

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 the radius of a sphere such that, if all the mass of an object were to be compressed within that sphere, the escape velocity from the surface of the sphere would equal the speed of light.

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

Science Daily

Science Daily is an American news website for topical science articles.

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

Softpedia

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

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

Star

A star is a luminous sphere 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 »

Supernova

A supernova is a stellar explosion that briefly outshines an entire galaxy, radiating as much energy as the Sun or any ordinary star is expected to emit over its entire life span, before fading from view over several weeks or months.

New!!: Exotic star and Supernova · 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 »

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

References

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

OutgoingIncoming
Hey! We are on Facebook now! »