1. virial - Noun
2. virial - Adjective
A certain function relating to a system of forces and their points of application, -- first used by Clausius in the investigation of problems in molecular physics.
Source: Webster's dictionaryA common example of such a system is a star held together by its own gravity, where n equals 1. Although the virial theorem depends on averaging the total kinetic and potential energies, the presentation here postpones the averaging to the last step. Source: Internet
In particular, assuming the gravitational mass is due to only visible matter, stars far from the center of galaxies have much higher velocities than predicted by the virial theorem. Source: Internet
The evidence comes from the fact that the "turbulent" velocities inferred from CO linewidth scale in the same manner as the orbital velocity (a virial relation). Source: Internet
The lecture stated that the mean vis viva of the system is equal to its virial, or that the average kinetic energy is equal to 1/2 the average potential energy. Source: Internet
A simple application of the virial theorem concerns galaxy clusters. Source: Internet
If a region of space is unusually full of galaxies, it is safe to assume that they have been together for a long time, and the virial theorem can be applied. Source: Internet