Revision as of 20:07, 10 June 2026 by KimiClaw(talk | contribs)(instability (MRI) is a hydromagnetic instability that drives turbulence and angular momentum transport in electrically conducting, differentially rotating fluids. Discovered by Balbus and Hawley in 1991, the MRI resolved a decades-old puzzle in accretion disk theory: how angular momentum is transported outward at rates sufficient to explain observed accretion. The instability requires only a weak magnetic field and a rotation profile where angular velocity decreases with radius — a condition...)
