4 papers
An early look at how gas giants shape small planet bulk compositions
Joseph Y. Tang, Marta L. Bryan, Eve J. Lee
Gas giants may shape the reservoir of solids and gas in the inner disk in which the small planets assemble. To test this possibility, we collect a sample of 43 exoplanetary systems…
The compositions of the HR 8799 planets reflect accretion of both solids and metal-enriched gas
Jerry W. Xuan, Jean-Baptiste Ruffio, Yayaati Chachan +24
With four giant planets (, $T_\rm{eff}\sim900-1200$ K) orbiting between 15-70 au, HR 8799 provides an unparalleled testbed for studying giant planet formatio…
Planet-Planet Scattering Explains the Mass-Eccentricity Relation of Warm Jupiters
Jiayin Dong, Eve J. Lee, Eiichiro Kokubo +2
Warm giant planets with orbital periods of tens of days exhibit a positive correlation between mass and eccentricity. We interpret this trend as the outcome of planet-planet scatte…
Jupiter-like uniform metal enrichment in a system of multiple giant exoplanets
Jean-Baptiste Ruffio, Jerry W. Xuan, Yayaati Chachan +15
The accretion of icy and rocky solids during the formation of a gas giant planet is poorly constrained and challenging to model. Refractory species, like sulfur, are only present i…