Stellar dynamics, the Glossary
Stellar dynamics is the branch of astrophysics which describes in a statistical way the collective motions of stars subject to their mutual gravity.[1]
Table of Contents
57 relations: Accretion disk, Albert Einstein, Anatoly Vlasov, Astrophysics, Boltzmann equation, Bondi accretion, Celestial mechanics, Classical mechanics, Coma Cluster, Coulomb collision, Coulomb's law, Cross section (physics), Dark matter, David Merritt, Donald Lynden-Bell, Dynamical friction, Euler equations (fluid dynamics), Fluid mechanics, Fritz Zwicky, Galaxy, Galaxy cluster, Galaxy merger, Globular cluster, Gravitational focusing, Gravity, Hydrostatic equilibrium, Impact parameter, James Jeans, Jan Oort, Jeans equations, Kinetic theory of gases, Landau damping, Liouville's theorem (Hamiltonian), Ludwig Boltzmann, Mass segregation (astronomy), Maxwell's equations, Maxwell–Boltzmann distribution, Mean free path, N-body problem, Newton's laws of motion, Normal distribution, Poisson's equation, Princeton University Press, Relaxation (physics), Schwarzschild radius, Slingshot, Speed of sound, Spherical cow, Star, Statistical mechanics, ... Expand index (7 more) »
Accretion disk
An accretion disk is a structure (often a circumstellar disk) formed by diffuse material in orbital motion around a massive central body.
See Stellar dynamics and Accretion disk
Albert Einstein
Albert Einstein (14 March 1879 – 18 April 1955) was a German-born theoretical physicist who is widely held as one of the most influential scientists. Best known for developing the theory of relativity, Einstein also made important contributions to quantum mechanics. His mass–energy equivalence formula, which arises from relativity theory, has been called "the world's most famous equation".
See Stellar dynamics and Albert Einstein
Anatoly Vlasov
Anatoly Aleksandrovich Vlasov (Анато́лий Алекса́ндрович Вла́сов; – 22 December 1975) was a Russian, later Soviet, theoretical physicist prominent in the fields of statistical mechanics, kinetics, and especially in plasma physics.
See Stellar dynamics and Anatoly Vlasov
Astrophysics
Astrophysics is a science that employs the methods and principles of physics and chemistry in the study of astronomical objects and phenomena.
See Stellar dynamics and Astrophysics
Boltzmann equation
The Boltzmann equation or Boltzmann transport equation (BTE) describes the statistical behaviour of a thermodynamic system not in a state of equilibrium; it was devised by Ludwig Boltzmann in 1872.
See Stellar dynamics and Boltzmann equation
Bondi accretion
In astrophysics, the Bondi accretion (also called Bondi–Hoyle–Lyttleton accretion), named after Hermann Bondi, is spherical accretion onto a compact object traveling through the interstellar medium.
See Stellar dynamics and Bondi accretion
Celestial mechanics
Celestial mechanics is the branch of astronomy that deals with the motions of objects in outer space.
See Stellar dynamics and Celestial mechanics
Classical mechanics
Classical mechanics is a physical theory describing the motion of objects such as projectiles, parts of machinery, spacecraft, planets, stars, and galaxies.
See Stellar dynamics and Classical mechanics
Coma Cluster
The Coma Cluster (Abell 1656) is a large cluster of galaxies that contains over 1,000 identified galaxies.
See Stellar dynamics and Coma Cluster
Coulomb collision
A Coulomb collision is a binary elastic collision between two charged particles interacting through their own electric field.
See Stellar dynamics and Coulomb collision
Coulomb's law
Coulomb's inverse-square law, or simply Coulomb's law, is an experimental law of physics that calculates the amount of force between two electrically charged particles at rest.
See Stellar dynamics and Coulomb's law
Cross section (physics)
In physics, the cross section is a measure of the probability that a specific process will take place in a collision of two particles.
See Stellar dynamics and Cross section (physics)
Dark matter
In astronomy, dark matter is a hypothetical form of matter that appears not to interact with light or the electromagnetic field.
See Stellar dynamics and Dark matter
David Merritt
David Roy Merritt (born November 16, 1955, in Los Angeles) is an American astrophysicist.
See Stellar dynamics and David Merritt
Donald Lynden-Bell
Donald Lynden-Bell CBE FRS (5 April 1935 – 6 February 2018) was a British theoretical astrophysicist.
See Stellar dynamics and Donald Lynden-Bell
Dynamical friction
In astrophysics, dynamical friction or Chandrasekhar friction, sometimes called gravitational drag, is loss of momentum and kinetic energy of moving bodies through gravitational interactions with surrounding matter in space.
See Stellar dynamics and Dynamical friction
Euler equations (fluid dynamics)
In fluid dynamics, the Euler equations are a set of partial differential equations governing adiabatic and inviscid flow.
See Stellar dynamics and Euler equations (fluid dynamics)
Fluid mechanics
Fluid mechanics is the branch of physics concerned with the mechanics of fluids (liquids, gases, and plasmas) and the forces on them.
See Stellar dynamics and Fluid mechanics
Fritz Zwicky
Fritz Zwicky (February 14, 1898 – February 8, 1974) was a Swiss astronomer.
See Stellar dynamics and Fritz Zwicky
Galaxy
A galaxy is a system of stars, stellar remnants, interstellar gas, dust, and dark matter bound together by gravity.
See Stellar dynamics and Galaxy
Galaxy cluster
A galaxy cluster, or a cluster of galaxies, is a structure that consists of anywhere from hundreds to thousands of galaxies that are bound together by gravity, with typical masses ranging from 1014 to 1015 solar masses.
See Stellar dynamics and Galaxy cluster
Galaxy merger
Galaxy mergers can occur when two (or more) galaxies collide.
See Stellar dynamics and Galaxy merger
Globular cluster
A globular cluster is a spheroidal conglomeration of stars that is bound together by gravity, with a higher concentration of stars towards its center.
See Stellar dynamics and Globular cluster
Gravitational focusing
The concept of gravitational focusing describes how the gravitational attraction between two particles increases the probability that they will collide. Stellar dynamics and gravitational focusing are gravity.
See Stellar dynamics and Gravitational focusing
Gravity
In physics, gravity is a fundamental interaction which causes mutual attraction between all things that have mass.
See Stellar dynamics and Gravity
Hydrostatic equilibrium
In fluid mechanics, hydrostatic equilibrium (hydrostatic balance, hydrostasy) is the condition of a fluid or plastic solid at rest, which occurs when external forces, such as gravity, are balanced by a pressure-gradient force.
See Stellar dynamics and Hydrostatic equilibrium
Impact parameter
In physics, the impact parameter is defined as the perpendicular distance between the path of a projectile and the center of a potential field created by an object that the projectile is approaching (see diagram).
See Stellar dynamics and Impact parameter
James Jeans
Sir James Hopwood Jeans (11 September 1877 – 16 September 1946) was an English physicist, astronomer and mathematician.
See Stellar dynamics and James Jeans
Jan Oort
Jan Hendrik Oort (or; 28 April 1900 – 5 November 1992) was a Dutch astronomer who made significant contributions to the understanding of the Milky Way and who was a pioneer in the field of radio astronomy.
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Jeans equations
The Jeans equations are a set of partial differential equations that describe the motion of a collection of stars in a gravitational field.
See Stellar dynamics and Jeans equations
Kinetic theory of gases
The kinetic theory of gases is a simple classical model of the thermodynamic behavior of gases.
See Stellar dynamics and Kinetic theory of gases
Landau damping
In physics, Landau damping, named after its discoverer,Landau, L. "On the vibration of the electronic plasma".
See Stellar dynamics and Landau damping
Liouville's theorem (Hamiltonian)
In physics, Liouville's theorem, named after the French mathematician Joseph Liouville, is a key theorem in classical statistical and Hamiltonian mechanics.
See Stellar dynamics and Liouville's theorem (Hamiltonian)
Ludwig Boltzmann
Ludwig Eduard Boltzmann (20 February 1844 – 5 September 1906) was an Austrian physicist and philosopher.
See Stellar dynamics and Ludwig Boltzmann
Mass segregation (astronomy)
In astronomy, dynamical mass segregation is the process by which heavier members of a gravitationally bound system, such as a star cluster, tend to move toward the center, while lighter members tend to move farther away from the center.
See Stellar dynamics and Mass segregation (astronomy)
Maxwell's equations
Maxwell's equations, or Maxwell–Heaviside equations, are a set of coupled partial differential equations that, together with the Lorentz force law, form the foundation of classical electromagnetism, classical optics, electric and magnetic circuits.
See Stellar dynamics and Maxwell's equations
Maxwell–Boltzmann distribution
In physics (in particular in statistical mechanics), the Maxwell–Boltzmann distribution, or Maxwell(ian) distribution, is a particular probability distribution named after James Clerk Maxwell and Ludwig Boltzmann.
See Stellar dynamics and Maxwell–Boltzmann distribution
Mean free path
In physics, mean free path is the average distance over which a moving particle (such as an atom, a molecule, or a photon) travels before substantially changing its direction or energy (or, in a specific context, other properties), typically as a result of one or more successive collisions with other particles.
See Stellar dynamics and Mean free path
N-body problem
In physics, the -body problem is the problem of predicting the individual motions of a group of celestial objects interacting with each other gravitationally. Stellar dynamics and n-body problem are gravity.
See Stellar dynamics and N-body problem
Newton's laws of motion
Newton's laws of motion are three physical laws that describe the relationship between the motion of an object and the forces acting on it.
See Stellar dynamics and Newton's laws of motion
Normal distribution
In probability theory and statistics, a normal distribution or Gaussian distribution is a type of continuous probability distribution for a real-valued random variable.
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Poisson's equation
Poisson's equation is an elliptic partial differential equation of broad utility in theoretical physics.
See Stellar dynamics and Poisson's equation
Princeton University Press
Princeton University Press is an independent publisher with close connections to Princeton University.
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Relaxation (physics)
In the physical sciences, relaxation usually means the return of a perturbed system into equilibrium.
See Stellar dynamics and Relaxation (physics)
Schwarzschild radius
The Schwarzschild radius or the gravitational radius is a physical parameter in the Schwarzschild solution to Einstein's field equations that corresponds to the radius defining the event horizon of a Schwarzschild black hole.
See Stellar dynamics and Schwarzschild radius
Slingshot
A slingshot or catapult is a small hand-powered projectile weapon.
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Speed of sound
The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elastic medium.
See Stellar dynamics and Speed of sound
Spherical cow
Comic of a spherical cow as illustrated by a 1996 meeting of the American Astronomical Association, in reference to astronomy modeling The spherical cow is a humorous metaphor for highly simplified scientific models of complex phenomena.
See Stellar dynamics and Spherical cow
Star
A star is a luminous spheroid of plasma held together by self-gravity. Stellar dynamics and star are stellar astronomy.
Statistical mechanics
In physics, statistical mechanics is a mathematical framework that applies statistical methods and probability theory to large assemblies of microscopic entities.
See Stellar dynamics and Statistical mechanics
Stellar classification
In astronomy, stellar classification is the classification of stars based on their spectral characteristics. Stellar dynamics and stellar classification are stellar astronomy.
See Stellar dynamics and Stellar classification
Stellar kinematics
In astronomy, stellar kinematics is the observational study or measurement of the kinematics or motions of stars through space. Stellar dynamics and stellar kinematics are stellar astronomy.
See Stellar dynamics and Stellar kinematics
Sverre Aarseth
Sverre Johannes Aarseth, (born 20 July 1934) is a research scientist at the Institute of Astronomy at the University of Cambridge.
See Stellar dynamics and Sverre Aarseth
Tidal force
The tidal force or tide-generating force is a gravitational effect that stretches a body along the line towards and away from the center of mass of another body due to spatial variations in strength in gravitational field from the other body. Stellar dynamics and tidal force are gravity.
See Stellar dynamics and Tidal force
Vector calculus
Vector calculus or vector analysis is a branch of mathematics concerned with the differentiation and integration of vector fields, primarily in three-dimensional Euclidean space, \mathbb^3.
See Stellar dynamics and Vector calculus
Virial theorem
In statistical mechanics, the virial theorem provides a general equation that relates the average over time of the total kinetic energy of a stable system of discrete particles, bound by a conservative force (where the work done is independent of path) with that of the total potential energy of the system.
See Stellar dynamics and Virial theorem
Vlasov equation
The Vlasov equation is a differential equation describing time evolution of the distribution function of plasma consisting of charged particles with long-range interaction, such as the Coulomb interaction.
See Stellar dynamics and Vlasov equation
References
[1] https://en.wikipedia.org/wiki/Stellar_dynamics
Also known as Stellar-dynamical.
, Stellar classification, Stellar kinematics, Sverre Aarseth, Tidal force, Vector calculus, Virial theorem, Vlasov equation.