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46 relations: Accretion (astrophysics), Accretion disk, Angular momentum, Asteroid, Asteroid belt, Astronomical unit, Binary system, Cambridge University Press, Circumbinary planet, Circumstellar envelope, Cosmic dust, Debris disk, Disrupted planet, Electromagnetic spectrum, Exoplanet, Exozodiacal dust, Formation and evolution of the Solar System, Gas, GG Tauri, Hills cloud, Hydrogen, Interplanetary dust cloud, Jet Propulsion Laboratory, KIC 8462852, Kuiper belt, Matter, Molecular cloud, Nebular hypothesis, Orbit, Paul Kalas, Photoevaporation, Planetesimal, Protoplanetary disk, Protostar, Radiation pressure, Scattered disc, Solar System, Star, Stellar wind, T Tauri star, Torus, Ultraviolet, Wavelength, WD 1145+017, White dwarf, X-ray.
Accretion (astrophysics)
In astrophysics, accretion is the accumulation of particles into a massive object by gravitationally attracting more matter, typically gaseous matter, in an accretion disk.
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Accretion disk
An accretion disk is a structure (often a circumstellar disk) formed by diffused material in orbital motion around a massive central body.
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Angular momentum
In physics, angular momentum (rarely, moment of momentum or rotational momentum) is the rotational equivalent of linear momentum.
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Asteroid
Asteroids are minor planets, especially those of the inner Solar System.
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Asteroid belt
The asteroid belt is the circumstellar disc in the Solar System located roughly between the orbits of the planets Mars and Jupiter.
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Astronomical unit
The astronomical unit (symbol: au, ua, or AU) is a unit of length, roughly the distance from Earth to the Sun.
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Binary system
A binary system is a system of two astronomical bodies which are close enough that their gravitational attraction causes them to orbit each other around a barycenter (also see animated examples).
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Cambridge University Press
Cambridge University Press (CUP) is the publishing business of the University of Cambridge.
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Circumbinary planet
A circumbinary planet is a planet that orbits two stars instead of one.
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Circumstellar envelope
A circumstellar envelope (CSE) is a part of a star that has a roughly spherical shape and is not gravitationally bound to the star core.
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Cosmic dust
Cosmic dust, also called extraterrestrial dust or space dust, is dust which exists in outer space, as well as all over planet Earth.
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Debris disk
A debris disk is a circumstellar disk of dust and debris in orbit around a star.
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Disrupted planet
A disrupted planet is an official astronomical term for a planet, or exoplanet, that has been disrupted, or destroyed, by a nearby, or passing, astronomical body or object, such as a star.
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Electromagnetic spectrum
The electromagnetic spectrum is the range of frequencies (the spectrum) of electromagnetic radiation and their respective wavelengths and photon energies.
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Exoplanet
An exoplanet or extrasolar planet is a planet outside our solar system.
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Exozodiacal dust
Exozodiacal dust is 1-100 micrometre-sized grains of amorphous carbon and silicate dust that fill the plane of extrasolar planetary systems.
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Formation and evolution of the Solar System
The formation and evolution of the Solar System began 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud.
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Gas
Gas is one of the four fundamental states of matter (the others being solid, liquid, and plasma).
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GG Tauri
GG Tauri, often abbreviated as GG Tau, is a quadruple or quintuple star system in the constellation Taurus.
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Hills cloud
In astronomy, the Hills cloud (also called the inner Oort cloud and inner cloud) is a vast theoretical circumstellar disc, interior to the Oort cloud, whose outer border would be located at around 20,000 to 30,000 astronomical units (AU) from the Sun, and whose inner border, less well-defined, is hypothetically located at, well beyond planetary and Kuiper Belt object orbits - but distances might be much greater.
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Hydrogen
Hydrogen is a chemical element with symbol H and atomic number 1.
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Interplanetary dust cloud
The interplanetary dust cloud, or zodiacal cloud, consists of cosmic dust (small particles floating in outer space) that pervades the space between planets in the Solar System and other planetary systems.
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Jet Propulsion Laboratory
The Jet Propulsion Laboratory (JPL) is a federally funded research and development center and NASA field center in Pasadena, California, United States, with large portions of the campus in La Cañada Flintridge, California.
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KIC 8462852
KIC 8462852 (also Tabby's Star or Boyajian's Star) is an F-type main-sequence star located in the constellation Cygnus approximately from Earth.
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Kuiper belt
The Kuiper belt, occasionally called the Edgeworth–Kuiper belt, is a circumstellar disc in the outer Solar System, extending from the orbit of Neptune (at 30 AU) to approximately 50 AU from the Sun.
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Matter
In the classical physics observed in everyday life, matter is any substance that has mass and takes up space by having volume.
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Molecular cloud
A molecular cloud, sometimes called a stellar nursery (if star formation is occurring within), is a type of interstellar cloud, the density and size of which permit the formation of molecules, most commonly molecular hydrogen (H2).
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Nebular hypothesis
The nebular hypothesis is the most widely accepted model in the field of cosmogony to explain the formation and evolution of the Solar System (as well as other planetary systems).
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Orbit
In physics, an orbit is the gravitationally curved trajectory of an object, such as the trajectory of a planet around a star or a natural satellite around a planet.
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Paul Kalas
Paul Kalas (born August 13, 1967) is a Greek American astronomer known for his discoveries of debris disks around stars.
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Photoevaporation
Photoevaporation denotes the process where energetic radiation ionises gas and causes it to disperse away from the ionising source.
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Planetesimal
Planetesimals are solid objects thought to exist in protoplanetary disks and in debris disks.
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Protoplanetary disk
A protoplanetary disk is a rotating circumstellar disk of dense gas and dust surrounding a young newly formed star, a T Tauri star, or Herbig Ae/Be star.
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Protostar
A protostar is a very young star that is still gathering mass from its parent molecular cloud.
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Radiation pressure
Radiation pressure is the pressure exerted upon any surface due to the exchange of momentum between the object and the electromagnetic field.
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Scattered disc
The scattered disc (or scattered disk) is a distant circumstellar disc in the Solar System that is sparsely populated by icy small solar system bodies, and are a subset of the broader family of trans-Neptunian objects.
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Solar System
The Solar SystemCapitalization of the name varies.
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Star
A star is type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.
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Stellar wind
A stellar wind is a flow of gas ejected from the upper atmosphere of a star.
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T Tauri star
T Tauri stars (TTS) are a class of variable stars associated with youth.
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Torus
In geometry, a torus (plural tori) is a surface of revolution generated by revolving a circle in three-dimensional space about an axis coplanar with the circle.
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Ultraviolet
Ultraviolet (UV) is electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays.
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Wavelength
In physics, the wavelength is the spatial period of a periodic wave—the distance over which the wave's shape repeats.
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WD 1145+017
WD 1145+017 (also known as EPIC 201563164) is a white dwarf star located approximately from Earth in the constellation of Virgo.
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White dwarf
A white dwarf, also called a degenerate dwarf, is a stellar core remnant composed mostly of electron-degenerate matter.
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X-ray
X-rays make up X-radiation, a form of electromagnetic radiation.
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Redirects here:
Circumstellar discs, Circumstellar disk, Circumstellar disks, Dust disk.
References
[1] https://en.wikipedia.org/wiki/Circumstellar_disc
