Tidal Constraints to Planetary Habitability

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Tidal Constraints to Planetary Habitability

Post by Sirius_Alpha on 13th December 2009, 10:59 pm

Tidal Constraints on Planetary Habitability
http://arxiv.org/abs/0912.2095

Abstract wrote:We review how tides may impact the habitability of terrestrial-like planets. If such planets form around low-mass stars, then planets in the circumstellar habitable zone will be close enough to their host stars to experience strong tidal forces. We discuss 1) decay of semi-major axis, 2) circularization of eccentric orbits, 3) evolution toward zero obliquity, 4) fixed rotation rates (not necessarily synchronous), and 5) internal heating. We briefly describe these effects using the example of a 0.25 solar mass star with a 10 Earth-mass companion. We suggest that the concept of a habitable zone should be modified to include the effects of tides.

Some great equations in there.

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Re: Tidal Constraints to Planetary Habitability

Post by Lazarus on 14th December 2009, 6:12 pm

Is this a condensed version of this paper? Maybe we should move the Gliese 581d non-hypervolcanic thread here (probably keep the title from this one)

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