Resolving the degeneracy between eccentric planets and 2:1 mean motion resonances

A. Moorhead; E. Ford

doi:10.1051/eas/1042016

Resolving the degeneracy between eccentric planets and 2:1 mean motion resonances

A. Moorhead, E. Ford

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

The dynamical state of a multiple planet system reflects the underlying processes of planet formation and orbital evolution. Radial velocity planet searches have yielded several systems that appear to be in or near a low-order mean-motion resonance, including several near a 2:1 mean-motion ratio. Still more systems apparently contain one eccentric planet. We demonstrate that many of these systems are indistinguishable from a system with two planets in a 2:1 mean-motion ratio, and outline a framework for determining how often the observed, apparently-single planets are likely to have such a second planet present.

Original language	English (US)
Title of host publication	Extrasolar Planets in Multi-Body Systems
Subtitle of host publication	Theory and Observations
Pages	161-164
Number of pages	4
DOIs	https://doi.org/10.1051/eas/1042016
State	Published - Dec 1 2010
Event	International Conference Eztrasolar Planets in Multi-Body Systems: Theory and Observations - Torun, Poland Duration: Aug 25 2008 → Aug 29 2008

Publication series

Name	EAS Publications Series
Volume	42
ISSN (Print)	1633-4760
ISSN (Electronic)	1638-1963

Other

Other	International Conference Eztrasolar Planets in Multi-Body Systems: Theory and Observations
Country	Poland
City	Torun
Period	8/25/08 → 8/29/08

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All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Engineering(all)
Space and Planetary Science

Cite this

Moorhead, A., & Ford, E. (2010). Resolving the degeneracy between eccentric planets and 2:1 mean motion resonances. In Extrasolar Planets in Multi-Body Systems: Theory and Observations (pp. 161-164). (EAS Publications Series; Vol. 42). https://doi.org/10.1051/eas/1042016

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Moorhead, A & Ford, E 2010, Resolving the degeneracy between eccentric planets and 2:1 mean motion resonances. in Extrasolar Planets in Multi-Body Systems: Theory and Observations. EAS Publications Series, vol. 42, pp. 161-164, International Conference Eztrasolar Planets in Multi-Body Systems: Theory and Observations, Torun, Poland, 8/25/08. https://doi.org/10.1051/eas/1042016

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Access to Document

10.1051/eas/1042016