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Number of Results: 1 Search : Eddington-Sweet time scale

Eddington-Sweet time scale marpel-e zamâni-ye Eddington-Sweet Fr.: échelle de temps d'Eddington-Sweet The time required for the redistribution of → τ is the
→ _{KH}Kelvin-Helmholtz time scale,
R, M, and L designate the radius, mass, and luminosity respectively,
Ω the → angular velocity, and G the
→ gravitational constant.
The Eddington-Sweet time scale can be approximated by
τ,
where χ is the ratio of the → _{ES}≅ τ_{KH} / χcentrifugal force to
→ gravity. For the Sun,
χ ≅ 10^{-5} resulting in an Eddington-Sweet time scale which
is too long (10^{12} years), i.e. unimportant. In contrast, for a
rotating → massive star χ is not so much less than 1. Hence
the Eddington-Sweet circulation is very important in massive stars.Named after the prominent British astrophysicist Arthur S. Eddington (1882-1944), who
was the first to suggest these currents (in |