Metallicity, planetary formation and migration |
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| Authors: | Mario Livio J E Pringle† |
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| Institution: | Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 |
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| Abstract: | Recent observations show a clear correlation between the probability of hosting a planet and the metallicity of the parent star. As radial velocity surveys are biased, however, towards detecting planets with short orbital periods, the probability–metallicity correlation could merely reflect a dependence of migration rates on metallicity. We investigated the possibility, but find no basis to suggest that the migration process is sensitive to the metallicity. The indication is, therefore, that a higher metallicity results in a higher probability for planet formation . |
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| Keywords: | accretion accretion discs planetary systems: formation planetary systems: protoplanetary discs |
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