Work

Long‐Term Evolution of Close Planets Including the Effects of Secular Interactions

Year: 2006

Type: article

Abstract: This paper studies the long-term evolution of planetary systems containing short-period planets, including the effects of tidal circularization, secular excitation of eccentricity by companion planets, and stellar damping. For planetary systems subject to all of these effects, analytic solutions (or approximations) are presented for the time evolution of the semimajor axes and eccentricities. Secular interactions enhance the inward migration and accretion of hot Jupiters, while general relativity tends to act in opposition by reducing the effectiveness of the secular perturbations. The analytic solutions presented herein allow us to understand these effects over a wide range of parameter space and to isolate the effects of general relativity in these planetary systems.

Source: The Astrophysical Journal

DOI: 10.1086/506145

Authors: Fred C. Adams, Gregory Laughlin

Institutions: University of Michigan, University of California, Santa Cruz

Language: English

Topic: Stellar, planetary, and galactic studies

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

Funders: National Science Foundation, National Aeronautics and Space Administration

Awards: CAREER: The Detection and Characterization of Extrasolar Planets, G6671297155, FORMATION OF GIANT PLANETS BY CORE ACCRETION--GAS CAPTURE