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magnetosonic wave
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magnetosonic wave

physics
Also known as: magneto-sonic wave
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Quick Summary

A magnetosonic wave is a type of longitudinal wave that can occur in a plasma, specifically perpendicular to the magnetic field. Unlike sound waves, which involve pressure and temperature variations, magnetosonic waves are influenced by the interplay of magnetic fields and plasma particles.12

These waves are a form of magnetohydrodynamic (MHD) wave and are a significant source of variation in Earth's magnetic field. They propagate along magnetic field lines and can cause minute oscillations at Earth's surface. The speed of a magnetosonic wave is related to the magnetic field strength and particle density.31

Summary created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.
3 Britannica Sources
  1. plasma - Low-frequency waves
  2. plasma - Higher frequency waves
  3. geomagnetic field - Magnetohydrodynamic waves —magnetic pulsations

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