SIMBAD references

2014MNRAS.443.1310S - Mon. Not. R. Astron. Soc., 443, 1310-1318 (2014/September-2)

Chaotic dynamics of the planet in HD 196885 AB.

SATYAL S., HINSE T.C., QUARLES B. and NOYOLA J.P.

Abstract (from CDS):

Depending on the planetary orbit around the host star(s), a planet could orbit either one or both stars in a binary system as S type or P type, respectively. We have analysed the dynamics of the S-type planetary system in HD 196885 AB with an emphasis on a planet with a higher orbital inclination relative to the binary plane. The mean exponential growth factor of nearby orbits (MEGNO) maps are used as an indicator to determine regions of periodicity and chaos for the various choices of the planet's semimajor axis, eccentricity and inclination with respect to the previously determined observational uncertainties. We have quantitatively mapped out the chaotic and quasi-periodic regions of the system's phase space which indicate a likely regime of the planet's inclination. In addition, we inspect the resonant angle to determine whether alternation between libration and circulation occurs as a consequence of Kozai oscillations, a probable mechanism that can drive the planetary orbit to a very large inclination. Also, we demonstrate the possible higher mass limit of the planet and improve upon the current dynamical model based on our analysis.

Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): methods: numerical - celestial mechanics - binaries: general - stars: individual: HD 196885 - planetary systems

Simbad objects: 6

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2014MNRAS.443.1310S and select 'bookmark this link' or equivalent in the popup menu