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Astrophysics

A fossil record for exoplanets

Stars that host planets experience more mixing of their internal elements than do stars that lack such companions. This correlation may serve as a useful diagnostic in the search for planets around stars other than the Sun.

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Figure 1: Stellar lithium depletion.

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Pinsonneault, M. A fossil record for exoplanets. Nature 462, 168–169 (2009). https://doi.org/10.1038/462168a

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