2 papers
astro-ph.EP2019
Eccentricities and the Stability of Closely-Spaced Five-Planet Systems
Pierre Gratia, Jack J. Lissauer
Observations of exoplanets have revealed that systems with planets on closely-spaced orbits are common, which motivates the question "How closely can planets orbit to one another a…
hep-th2016
Double screening
Pierre Gratia, Wayne Hu, Austin Joyce +1
Attempts to modify gravity in the infrared typically require a screening mechanism to ensure consistency with local tests of gravity. These screening mechanisms fit into three broa…