http://arxiv.org/abs/1611.04064
There are two possible mechanisms to imprint planet signatures in the chemical composition of Sun-like stars: i) dust condensation at the early stages of planet formation, causing a depletion of refractory elements in the gas accreted by the star in the late stages of its formation; ii) planet engulfment, enriching the host star in lithium and refractory elements. We discuss both planet signatures, the influence of galactic chemical evolution, and the importance of binaries composed of stellar twins as laboratories to verify abundance anomalies imprinted by planets.
J. Melendez and I. Ramirez
Tue, 15 Nov 16
11/86
Comments: The 19th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun. Edited by G. A. Feiden
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