A Quick Method to Identify Secular Resonances in Multi-planet Systems with a Binary Companion

Autor(en)

Elke Pilat-Lohinger, Akos Bazso, Barbara Funk

Abstrakt

Gravitational perturbations in multi-planet systems caused by an accompanying star are the subject of this investigation. Our dynamical model is based on the binary star HD 41004 AB where a giant planet orbits HD 41004 A. We modify the orbital parameters of this system and analyze the motion of a hypothetical test planet surrounding HD 41004 A on an interior orbit to the detected giant planet. Our numerical computations indicate perturbations due to mean motion and secular resonances (SRs). The locations of these resonances are usually connected to high eccentricity and highly inclined motion depending strongly on the binary-planet architecture. As the positions of mean motion resonances can easily be determined, the main purpose of this study is to present a new semi-analytical method to determine the location of an SR without huge computational effort.

Organisation(en)

Institut für Astrophysik

Journal

The Astronomical Journal

Band

152

Anzahl der Seiten

9

ISSN

0004-6256

DOI

https://doi.org/10.3847/0004-6256/152/5/139

Publikationsdatum

11-2016

Peer-reviewed

Ja

ÖFOS 2012

103003 Astronomie, 103004 Astrophysik

Schlagwörter

ASJC Scopus Sachgebiete

Astronomy and Astrophysics, Space and Planetary Science

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/c17c0c56-7cdc-4965-af05-4dd456e39edb