Stellar Spin-Orbit Misalignment in a Multiplanet System

Abstract

Stars hosting hot Jupiters are often observed to have high obliquities, whereas stars with multiple co-planar planets have been seen to have low obliquities. This has been interpreted as evidence that hot-Jupiter formation is linked to dynamical disruption, as opposed to planet migration through a protoplanetary disk. We used asteroseismology to measure a large obliquity for Kepler-56, a red giant star hosting two transiting co-planar planets. These observations show that spin-orbit misalignments are not confined to hot-Jupiter systems. Misalignments in a broader class of systems had been predicted as a consequence of torques from wide-orbiting companions, and indeed radial-velocity measurements revealed a third companion in a wide orbit in the Kepler-56 system.

Accepted for publication in Science, published online on October 17 2013; PDF includes main article and supplementary materials (65 pages, 27 figures, 7 tables); v2: small correction to author list

References in corpus (16)

• Dynamical Outcomes of Planet-Planet Scattering
• DHP Framework: Digital Health Passports Using Blockchain -- Use case on international tourism during the COVID-19 pandemic
• Formation of Hot Planets by a combination of planet scattering, tidal circularization, and Kozai mechanism
• Basic physical parameters of a selected sample of evolved stars
• ADIPLS -- the Aarhus adiabatic oscillation package
• Numerical Tests of Fast Reconnection in Weakly Stochastic Magnetic Fields
• ASTEC -- the Aarhus STellar Evolution Code
• Alignment of the stellar spin with the orbits of a three-planet system
• Radius determination of solar-type stars using asteroseismology: What to expect from the Kepler mission
• The amplitude of solar oscillations using stellar techniques
• The triple evolution dynamical instability: Stellar collisions in the field and the formation of exotic binaries
• The Liege Oscillation Code
• Planetary Systems in Binaries. I. Dynamical Classification
• Seismic constraints on rotation of Sun-like star and mass of exoplanet
• The Value of Systems with Multiple Transiting Planets
• The Current Status of Asteroseismology

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