Magnetic mirror point

In astrophysics, a magnetic mirror point is a point where the motion of a charged particle trapped in a magnetic field (such as the (approximately) dipole field of the Earth) reverses its direction. More precisely, it is the point where the projection of the particle's velocity vector in the direction of the field vector is equal to zero.

Diagram of a magnetic mirror point
A terrestrial gamma-ray flash (TGF) event with associated electron/positron beams which were detected by the Fermi Gamma-ray Space Telescope as well as its bounce from the magnetic mirror point[1]

See also

References
  1. Garner, Rob (2015-06-26). "NASA's Fermi Catches Thunderstorms Hurling Antimatter into Space". NASA. Retrieved 2022-08-13.


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