In the

magnetosphere In astronomy and planetary science, a magnetosphere is a region of space surrounding an astronomical object in which charged particles are affected by that object's magnetic field. It is created by a celestial body with an active interior dynamo ...

, the plasma sheet is a sheet-like region of denser (0.3-0.5 ions/cm³ versus 0.01-0.02 in the lobes) hot plasma and lower

magnetic field A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and t ...

near the

equatorial plane The celestial equator is the great circle of the imaginary celestial sphere on the same plane as the equator of Earth. This plane of reference bases the equatorial coordinate system. In other words, the celestial equator is an abstract projec ...

, between the magnetosphere's north and south lobes. A magnetosphere is produced by the interaction of a stream of

charged particles In physics, a charged particle is a particle with an electric charge. It may be an ion, such as a molecule or atom with a surplus or deficit of electrons relative to protons. It can also be an electron or a proton, or another elementary pa ...

, such as

solar wind The solar wind is a stream of charged particles released from the upper atmosphere of the Sun, called the corona. This plasma mostly consists of electrons, protons and alpha particles with kinetic energy between . The composition of the ...

, with the

of a planet (or similar body). All planets with intrinsic magnetic fields, including Earth, are surrounded by a magnetosphere.

References

Geomagnetism Planetary science Space plasmas {{astrophysics-stub