kaylamount15 kaylamount15

22-06-2022
Physics

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Several planets in our solar system have a magnetosphere. Describe what is required, in general, for a magnetosphere to exist (not just Earth). Also comment on what you see as the impact to us if we had no magnetosphere.

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hasja2272 hasja2272

22-06-2022

Answer:

The formation of a magnetosphere requires that the dipolar field is strong enough for the obstacle effective size to be larger (Dp > 20λi) than ion scales. In this case, a bow shock, magnetosheath, and magnetospheric system are driven, and the flow is modified far upstream.

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