9 papers
Warm Sub-Saturns Orbiting Single Stars Are Spin-Orbit Aligned
Xian-Yu Wang, Songhu Wang
In this work, we show that warm sub-Saturns orbiting single stars are predominantly aligned, in contrast to hot sub-Saturns, which are frequently misaligned, with the two populatio…
High-Eccentricity Tidal Migration Driven by Secular Chaos in Wide-Binary Systems
Yurou Liu, Hareesh Gautham Bhaskar, Xian-Yu Wang +1
High-eccentricity tidal migration driven by a distant stellar companion offers a natural pathway for producing some hot Jupiters; yet, most theoretical work has relied on an ideali…
A Homogeneous Catalog of Rossiter-McLaughlin Systems: Distinct - Trends in Three Gas-Giant Mass Regimes
Xian-Yu Wang, Songhu Wang, Konstantin Batygin
Stellar obliquity () and orbital eccentricity () trace the dynamical histories of close-in giant planets, but the current observational picture is assembled from heterogeneo…
The OATMEAL Survey. II. The 3D spin-orbit obliquity of an eccentric transiting brown dwarf in the Ruprecht 147 open cluster
Theron W. Carmichael, Steven Giacalone, Noah Vowell +11
We present new analysis of the CWW 89 system as part of the Orbital Architectures of Transiting Massive Exoplanets And Low-mass stars (OATMEAL) survey. The CWW 89 system is a membe…
Early Evidence for Polar Orbits of Sub-Saturns Around Hot Stars
Emma Dugan, Xian-Yu Wang, Agustin Heron +4
Sub-Saturns have been reported to preferentially occupy near-polar orbits, but this conclusion has so far been based primarily on systems with cool host stars; obliquity measuremen…
Migration and Evolution of giant ExoPlanets (MEEP) II: Super-Jupiters and Lithium-rich Host Stars
Jack Schulte, Joseph E. Rodriguez, David W. Latham +30
Although hot Jupiters were the first exoplanets discovered orbiting main sequence stars, the dominant mechanisms through which they form and evolve are not known. To address the qu…