dM star planets and cosmic rays

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dM star planets and cosmic rays

Post by Lazarus on 6th February 2009, 7:35 pm

On the protection of extrasolar Earth-like planets around K/M stars against galactic cosmic rays

Planets in the habitable zones of dM stars are not so well protected against cosmic rays because the magnetic moment is reduced thanks to tidal locking. Making the planet more massive does not do much to help the situation either, as the larger radius means the planetary atmosphere is located at a larger distance.
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Re: dM star planets and cosmic rays

Post by marasama on 11th February 2009, 3:53 pm

It just might mean that lifeforms are either sheltered more or will become more resistant to radiation than humans are.

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