Difference between revisions of "Magnetosphere"
Jarogers2001 (talk | contribs) (Ian, you might want to check these changes as my knowledge of physics may be inadequate.) |
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==Origin== | ==Origin== | ||
| − | The Earth's magnetosphere is thought to be generated by its rotating [[iron]] [[core]]. | + | The Earth's magnetosphere is thought to be generated by its rotating [[iron]] [[core]]. This is commonly referred to as a Dynamo. In order for a planetary core to act as as a dynamo it must contain a rotating liquid metal and there must be convection. Current theory is that the core of Mars has cooled enough to solidify or become plastic, but seismic investigations will be required to confirm or disprove this conclusion. |
==Effect== | ==Effect== | ||
| − | A | + | A magnetosphere of sufficient strength will serve to protect the occupants of a planet from the harmful [[solar wind]] and [[radiation]] of their star and the surrounding cosmos. The results of this protection can be seen as aurorae in the far northern and southern latitudes. |
| − | Because Mars lacks a significant magnetic field, it's magnetosphere offers | + | Because Mars lacks a significant magnetic field, it's magnetosphere offers negligible protection from solar wind and radiation. |
Revision as of 11:07, 28 March 2008
The Magnetosphere is the region of space surrounding a celestial object that is affected by the objects magnetic field.
Origin
The Earth's magnetosphere is thought to be generated by its rotating iron core. This is commonly referred to as a Dynamo. In order for a planetary core to act as as a dynamo it must contain a rotating liquid metal and there must be convection. Current theory is that the core of Mars has cooled enough to solidify or become plastic, but seismic investigations will be required to confirm or disprove this conclusion.
Effect
A magnetosphere of sufficient strength will serve to protect the occupants of a planet from the harmful solar wind and radiation of their star and the surrounding cosmos. The results of this protection can be seen as aurorae in the far northern and southern latitudes.
Because Mars lacks a significant magnetic field, it's magnetosphere offers negligible protection from solar wind and radiation.
