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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. It was first discussed in detail by Subrahmanyan Chandrasekhar in 1943. [1] [2] [3]
Subrahmanyan Chandrasekhar FRS (/ ˌ tʃ ə n d r ə ˈ ʃ eɪ k ər /; [3] 19 October 1910 – 21 August 1995) [4] was an Indian-American theoretical physicist who made significant contributions to the scientific knowledge about the structure of stars, stellar evolution and black holes.
Chandrasekhar limit [1] Chandrasekhar friction; Chandrasekhar polarization; Chandrasekhar–Kendall function; Chandrasekhar's H-function; Schönberg–Chandrasekhar limit; Velikhov–Chandrasekhar instability; Batchelor–Chandrasekhar equation; Chandrasekhar–Page equations; Chandrasekhar's white dwarf equation; Chandrasekhar–Fermi method
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In the Chandrasekhar–Eddington dispute of the early 20th century, English astronomer Arthur Eddington and the Indian astronomer Subrahmanyan Chandrasekhar disagreed over the correct theory to describe the final stages of a star's lifecycle. During the dispute, Chandrasekhar was at the beginning of his career and Eddington was a renowned ...
And inside such a typical galaxy the dynamical friction and accretion on stellar black holes over a 10-Gyr Hubble time change the black hole's velocity and mass by only an insignificant fraction % if the black hole makes up less than 0.1% of the total galaxy mass N M ⊙ ∼ 10 6 − 11 M ⊙ {\displaystyle NM_{\odot }\sim 10^{6-11}M_{\odot }} .
Good morning. Over the long weekend, I read The Friction Project, a new book out from two of my favorite business school professors, Robert Sutton and Huggy Rao of Stanford.They spent seven years ...
1931 — Subrahmanyan Chandrasekhar calculates, using special relativity, that a non-rotating body of electron-degenerate matter above a certain limiting mass (at 1.4 solar masses) has no stable solutions; 1939 — Robert Oppenheimer and Hartland Snyder calculate the gravitational collapse of a pressure-free homogeneous fluid sphere into a ...