ジーンズ不安定性
1. Jeans instabilityIn physics, the Jeans instability causes the collapse of interstellar gas clouds and subsequent star formation. It occurs when the internal gas pressure is not strong enough to prevent gravitational collapse of a region filled with matter. For stability, the cloud must be in hydrostatic equilibrium, which in case of a spherical cloud translates to:, where is the enclosed mass, is the pressure, is the density of the gas at, is the gravitational constant and is the radius.
Read “Jeans instability” on English Wikipedia
Read “ジーンズ不安定性” on Japanese Wikipedia
Read “Jeans instability” on DBpedia
Read “Jeans instability” on English Wikipedia
Read “ジーンズ不安定性” on Japanese Wikipedia
Read “Jeans instability” on DBpedia
Discussions
Log in to talk about this word.