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Origins of Structure in Planetary Systems

Ruth Murray-Clay, UCSC
Thursday, June 1, 2017 - 4:00pm to 5:00pm
PAA A-102

​Disk initial conditions combined with formation processes determine the bulk composition of a planet. I will discuss new work showing that the masses of observed protoplanetary disks may be larger than previously thought and suggest that the features of high-mass disks, combined with the efficacy of pebble accretion in turbulent gas, may explain the observed distribution of giant planets. Within this context, I will suggest a possible source for the observed correlation between planet mass and metallicity among giants, discuss implications for planetary system architectures, and provide predictions for correlations between the compositions of low-mass planets discovered by Kepler/K2 and the likely presence and properties of giant planets orbiting the same stars on more distant orbits.

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