Stability of S-type orbits in binaries

Autor(en)

Elke Pilat-Lohinger, Rudolf Dvorak

Abstrakt

This numerical investigation is concerned with the stability of planets moving around one component of a double star system. Since the discovery of four extra solar planets moving in such orbits, there is a growing interest of stability studies thereto. We determined the stable regions in the elliptic restricted three body problem, for the whole range of mass-ratios from 0.1 to 0.9, by means of the Fast Lyapunov indicators. The computations have been carried out for eccentricities of the binary and of the planet in the range 0-0.5. Therefore, we present for the first time the variation of the stable regions when the initial eccentricity of the planet is increased. We have found a correlation between the reduction of the stable zones if the eccentricity of the planet or of the binary is increased - of course the latter one is more effective.

Organisation(en)

Institut für Astrophysik

Journal

Celestial Mechanics and Dynamical Astronomy: an international journal of space dynamics

Band

82

Seiten

143-153

Anzahl der Seiten

11

ISSN

0923-2958

DOI

https://doi.org/10.1023/A:1014586308539

Publikationsdatum

2002

ÖFOS 2012

103003 Astronomie

Link zum Portal

https://ucris.univie.ac.at/portal/de/publications/stability-of-stype-orbits-in-binaries(8d5df73f-3456-404f-afc7-af672dabf999).html