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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 .
It begins with a full-page citation of the famous passage in Plato's Republic, Book VII, laying out the allegory of the cave. The book made frequent reference to the quantum theory of radiation , begun by Max Planck in 1900, to Albert Einstein 's general relativity , and to the new theories of quantum mechanics of Heisenberg and Schrödinger ...
The Jeans equations are a set of partial differential equations that describe the motion of a collection of stars in a gravitational field. The Jeans equations relate the second-order velocity moments to the density and potential of a stellar system for systems without collision.
This page was last edited on 26 November 2019, at 14:14 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
The world has entered an era of increasing instability as countries around the globe boost military spending in response to Russia’s invasion of Ukraine, the Hamas attack on Israel and China’s ...
The square root of the ratio is about 6. I dislike the formula here as it makes Jeans Mass for Bernard 68, 10.117 solar masses and Cambridge's formula makes Jeans Mass 1.662 solar masses assuming it is all molecular hydrogen not just mostly. Anyway, it is advertised in Wikipedia as a collapsing cloud a star that will be born in 200,000 years.
Beta Film has picked up international distribution rights to Latvia’s “Soviet Jeans.” Presented at Berlinale Series Market Selects, the show will premiere at Series Mania in March. Set in ...
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