Studying tidal effects in planetary systems with Posidonius. A N-body simulator written in Rust [EPA]

Planetary systems with several planets in compact orbital configurations such as TRAPPIST-1 are surely affected by tidal effects. Its study provides us with important insight about its evolution. We developed a second generation of a N-body code based on the tidal model used in Mercury-T, re-implementing and improving its functionalities using Rust as programming language (including a Python interface for easy use) and the WHFAST integrator. The new open source code ensures memory safety, reproducibility of numerical N-body experiments, it improves the spin integration compared to Mercury-T and allows to take into account a new prescription for the dissipation of tidal inertial waves in the convective envelope of stars. Posidonius is also suitable for binary system simulations with evolving stars.

Read this paper on arXiv…

S. Blanco-Cuaresma and E. Bolmont
Wed, 6 Dec 17

Comments: To appear in the “EWASS Special Session 4 (2017): Star-planet interactions” proceedings