TY - GEN
T1 - Resolving the degeneracy between eccentric planets and 2:1 mean motion resonances
AU - Moorhead, A.
AU - Ford, E.
N1 - Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2010
Y1 - 2010
N2 - 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.
AB - 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.
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U2 - 10.1051/eas/1042016
DO - 10.1051/eas/1042016
M3 - Conference contribution
AN - SCOPUS:78751672238
SN - 9782759804856
T3 - EAS Publications Series
SP - 161
EP - 164
BT - Extrasolar Planets in Multi-Body Systems
T2 - International Conference Eztrasolar Planets in Multi-Body Systems: Theory and Observations
Y2 - 25 August 2008 through 29 August 2008
ER -