Rogue Worlds and the Power of the Dark Side

Details Rogue Worlds and the Power of the Dark Side Rogue Worlds and the Power of the Dark Side

Sep 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ess.....2.1807s&link_type=abstract

American Astronomical Society, ESS meeting #2, #18.07

Astronomy and Astrophysics

Astronomy

Scientific paper

Many models for WIMP dark matter (Weakly Interacting Massive Particles) have both weak-scale couplings to nucleons and the capacity to annihilate into standard-model particles. A consequence of these properties is that dark matter particles near the cores of galaxies can, through nuclear scattering in a planet interior, lose energy and become gravitationally bound to the planet. These dark matter particles can then annihilate into energetic standard model particles providing a significant source of internal heat. In some situations, dark matter annihilations and a modest greenhouse effect can raise the surface temperature of a super-Earth planet above the melting point of water. These temperatures can be sustained for many trillions of years. Thus, it may be possible for even rogue super-Earths, with no stellar host, to sustain habitable conditions almost indefinitely.

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