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A [[Magnetosphere]] is formed when a stream of charged particles, such as the solar wind, interacts with and is deflected by the intrinsic magnetic field of a planet or similar body. [[Earth]] is surrounded by a magnetosphere, as are the other planets with intrinsic magnetic fields. Jupiter's moon Ganymede has a small magnetosphere β but it is situated entirely within the magnetosphere of Jupiter, leading to complex interactions. The ionospheres of weakly magnetized planets set up currents that partially deflect solar wind flow, but do not have magnetospheres, per se. | A [[Magnetosphere]] is formed when a stream of charged particles, such as the solar wind, interacts with and is deflected by the intrinsic magnetic field of a planet or similar body. [[Earth]] is surrounded by a magnetosphere, as are the other planets with intrinsic magnetic fields. Jupiter's moon Ganymede has a small magnetosphere β but it is situated entirely within the magnetosphere of Jupiter, leading to complex interactions. The ionospheres of weakly magnetized planets set up currents that partially deflect solar wind flow, but do not have magnetospheres, per se. | ||
The term magnetosphere has also been used to describe regions dominated by the magnetic fields of celestial objects, e.g. | The term magnetosphere has also been used to describe regions dominated by the magnetic fields of celestial objects, e.g. pulsar magnetospheres. | ||
In 1959 Thomas Gold proposed the name "magnetosphere", when he wrote: | In 1959 Thomas Gold proposed the name "magnetosphere", when he wrote: | ||
