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

A. Moorhead, E. Ford

Research output: Chapter in Book/Report/Conference proceedingConference 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 languageEnglish (US)
Title of host publicationExtrasolar Planets in Multi-Body Systems
Subtitle of host publicationTheory and Observations
Pages161-164
Number of pages4
DOIs
StatePublished - Dec 1 2010
EventInternational Conference Eztrasolar Planets in Multi-Body Systems: Theory and Observations - Torun, Poland
Duration: Aug 25 2008Aug 29 2008

Publication series

NameEAS Publications Series
Volume42
ISSN (Print)1633-4760
ISSN (Electronic)1638-1963

Other

OtherInternational Conference Eztrasolar Planets in Multi-Body Systems: Theory and Observations
CountryPoland
CityTorun
Period8/25/088/29/08

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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