Dynamics of tidally captured planets in the Galactic Center
Abstract
Recent observations suggest ongoing planet formation in the innermost parsec of our Galaxy. The super-massive black hole (SMBH) might strip planets or planetary embryos from their parent star, bringing them close enough to be tidally disrupted. We investigate the chance of planet tidal captures by running three-body encounters of SMBH-star-planet systems with a high-accuracy regularized code. We show that tidally captured planets have orbits close to those of their parent star. We conclude that the final periapsis distance of the captured planet from the SMBH will be much larger than 200 AU, unless its parent star was already on a highly eccentric orbit.
Keywords
Cite
@article{arxiv.1607.07438,
title = {Dynamics of tidally captured planets in the Galactic Center},
author = {Alessandro Alberto Trani and Michela Mapelli and Mario Spera and Alessandro Bressan},
journal= {arXiv preprint arXiv:1607.07438},
year = {2016}
}
Comments
2 pages, 2 figures, to appear in: "Cosmic-Lab: Star Clusters as Cosmic Laboratories for Astrophysics, Dynamics and Fundamental Physics", F.R. Ferraro & B. Lanzoni eds, Mem. SAIt, Vol 87