Can I read Stability of Coorbital Planets Around Binaries on EtoBox?

Stability of Coorbital Planets Around Binaries by Adelbert, Stefan; Penzlin, Anna B. T.; Schäfer, Christoph M.; Kley, Wilhelm; Quarles, Billy; Sfair, Rafael is a scholarly article available to read on EtoBox.

What is Stability of Coorbital Planets Around Binaries about?

In previous hydrodynamical simulations, we found a mechanism for nearly circular binary stars, like Kepler-413, to trap two planets in a stable 1:1 resonance. Therefore, the stability of coorbital configurations becomes a relevant question for planet formation around binary stars. Here, we investigate the coorbital planet stability using a Kepler-413 analogue as example and then expanding the parameters to study general n-body stability of planet pairs in eccentric horseshoe orbits around binaries. The stability is tested by evolving the planet orbits for $10^5$ binary periods with varying initial semi-major axes and planet eccentricities. The unstable region of a single circumbinary planet is used as a comparison to the investigated coorbital configurations in this work. We confirm previous findings on the stability of single planets and find a first order linear relation between orbit eccentricity and pericentre to identify stable orbits for various binary configurations. Such a linear relation is also found for the stability of 1:1 resonant planets around binaries. Stable orbits for eccentric horseshoe configurations exist with a pericentre closer than seven binary separations a

Author

Adelbert, Stefan; Penzlin, Anna B. T.; Schäfer, Christoph M.; Kley, Wilhelm; Quarles, Billy; Sfair, Rafael

Published

2023

Language

EN