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Does high no. of nomad exoplanets change est. for long term interstellar interactions?
Strigari et al at the Kavli Inst. (see http://news.stanford.edu/news/2012/f...ts-022312.html ) say that evidence
supports the idea that starless, nomad planets may swarm our galaxy (and thus others?). The huge ratio they propose for such nomads per star is 100,000. Wouldn't this seem to change the old assumptions in calculating the extremely low probabilities of 'interstellar' collisions and near misses, once we look not just at stellar distributions and their mean-free- paths, but now have to fold in this whole new family of objects.. the nomads? Additionally, won't this affect the results in modeling galaxy- galaxy collisions, for the same reason? Ie: More objects that go 'bump' in the night? [Mod. note: linked press release refers to http://arxiv.org/abs/1201.2687 -- mjh] |
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