@inproceedings{3895d4a488384b0792a0ad70a4aaf8fb,
title = "Dynamically Unstable Planetary Systems Emerging Out of Gas Disks",
abstract = "One of the most surprising properties of extrasolar planets is the eccentricity of their orbits, which vary from nearly circular (e ∼ 0) to highly eccentric ones (up to e ∼ 0.9). Planet-planet scattering with no gas disk has successfully reproduced the observed eccentricity distribution. However, this scenario alone cannot explain the distribution of planetary semi-major axes if giant planets form outside of ∼ 1 AU. Taking into account the effects of a residual gas disk after planet formation, we investigate the onset of dynamical instability in young planetary systems. Using a hybrid symplectic integrator + gas dynamics code, we demonstrate how planet-disk interactions along with planet-planet dynamical interactions could explain both the observed semi-major axis and eccentricity distributions of extrasolar planets.",
author = "Soko Matsumura and Thommes, {Edward W.} and S. Chatterjee and Rasio, {Frederic A}",
year = "2008",
language = "English (US)",
isbn = "978-1-58381-666-0",
series = "Astronomical Society of the Pacific Conference Series",
publisher = "Astronomical Society of the Pacific",
pages = "301--307",
editor = "D Fischer and Rasio, {Frederic A} and Thorsett, {S E} and A Wolszczan",
booktitle = "Extreme Solar Systems",
}