Metallicity, planetary formation and migration

Details Metallicity, planetary formation and migration Metallicity, planetary formation and migration

2003-10-23

arxiv.org/abs/astro-ph/0310695v1

Mon.Not.Roy.Astron.Soc. 346 (2003) L42

Astronomy and Astrophysics

Astrophysics

4 pages

Scientific paper

10.1111/j.1365-2966.2003.07318.x

Recent observations show a clear correlation between the probability of hosting a planet and the metallicity of the parent star. Since 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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