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http://dx.doi.org/10.5140/JASS.2016.33.4.257

Investigating Exoplanet Orbital Evolution Around Binary Star Systems with Mass Loss  

Rahoma, Walid A. (Department of Astronomy and Space Science, Cairo University)
Publication Information
Journal of Astronomy and Space Sciences / v.33, no.4, 2016 , pp. 257-264 More about this Journal
Abstract
A planet revolving around binary star system is a familiar system. Studies of these systems are important because they provide precise knowledge of planet formation and orbit evolution. In this study, a method to determine the evolution of an exoplanet revolving around a binary star system using different rates of stellar mass loss will be introduced. Using a hierarchical triple body system, in which the outer body can be moved with the center of mass of the inner binary star as a two-body problem, the long period evolution of the exoplanet orbit is determined depending on a Hamiltonian formulation. The model is simulated by numerical integrations of the Hamiltonian equations for the system over a long time. As a conclusion, the behavior of the planet orbital elements is quite affected by the rate of the mass loss from the accompanying binary star.
Keywords
exoplanet; long period dynamics; hierarchical system; triple star systems;
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