Affiliation:
1. Center for Space Research, Department of Astronomy, Cornell University, Ithaca, NY 14853, USA.
Abstract
Orbits don't forget their chaotic pasts
Many exoplanets orbit in planes that don't correspond to their star's spin axis. This phenomenon may be the fossil record of a dynamical history. Storch
et al.
demonstrate in simulations that the evolution of a star's spin is key in determining how its planets' orbits are eventually oriented. A binary companion body can drive a hot Jupiter to migrate inward, which induces chaotic behavior in the stellar spin axis and feedback down the line. If we can accurately replicate the statistics observed in planetary surveys, we may understand better how planets form.
Science
, this issue p.
1317
Publisher
American Association for the Advancement of Science (AAAS)
Cited by
101 articles.
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