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The Jeans mass is named after the British physicist Sir James Jeans, who considered the process of gravitational collapse within a gaseous cloud. He was able to show that, under appropriate conditions, a cloud, or part of one, would become unstable and begin to collapse when it lacked sufficient gaseous pressure support to balance the force of gravity.
Sir James Hopwood Jeans OM FRS [1] (11 September 1877 – 16 September 1946 [2]) was an English physicist, mathematician and an astronomer.He served as a secretary of the Royal Society from 1919 to 1929, and was the president of the Royal Astronomical Society from 1925 to 1927, and won its Gold Medal.
Farley–Buneman instability: Plasma instability: Donald T. Farley and Oscar Buneman: Görtler instability: Stability of flow along a concave boundary layer: H. Görtler: Holmboe instability: Stratified shear flows: Jørgen Holmboe: Jeans instability: Stability of interstellar gas clouds: James Jeans: Kelvin–Helmholtz instability: Stability ...
The most basic gravitational stability analysis is the Jeans criteria, which addresses the balance between self-gravity and thermal pressure in a gas. In terms of the two above stability conditions, the system is stable if: i) thermal pressure balances the force of gravity, and ii) if the system is compressed slightly, the outward pressure ...
Firehose instability (a.k.a. hose instability), not to be confused with the similarly named Firehose instability in galactic dynamics; Fish instability, Free electron maser instability, Gyrotron instability, Helical (Helix) instability, Jeans instability, [23] [24] Magnetic buoyancy instability. Interchange instability (a.k.a. flute instability ...
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After the instability has run its course, the system is typically "hotter" (the motions are more random) or rounder than before. Instabilities in stellar systems include: Bar instability of rapidly rotating disks; Jeans instability; Firehose instability [4] Gravothermal instability [5] Radial-orbit instability
Clerihew Bentley, who wrote comic verse about famous people of his time, wrote this one for Jeans: "Sir James Jeans/ says exactly what he means./ He is being perfectly serious/ when he talks of the universe being mysterious". 2601:C2:201:4612:D54E:E641:9AE8:6ECC (talk) 01:33, 19 May 2019 (UTC)