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

Published online by Cambridge University Press:  19 April 2010

K. Goździewski ,
A. Niedzielski ,
J. Schneider ,
A. Moorhead  and
E. Ford
A. Moorhead
Affiliation:
University of Floride, 211 Bryant Space Science Center, PO Box 112055, Gainesville, FL 32611-2055, USA
E. Ford
Affiliation:
University of Floride, 211 Bryant Space Science Center, PO Box 112055, Gainesville, FL 32611-2055, USA
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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-motionratio. Still more systems apparentlycontain one eccentric planet.We demonstrate that many of thesesystems are indistinguishable from a system with two planets in a 2:1 mean-motionratio, and outline a framework for determining how often the observed, apparently-singleplanets are likely to have such a second planet present.

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References

Anglada-Escude, G., Lopez-Morales, M., & Chambers, J.E., 2008, in preparation
Butler, R.P., Wright, J.T., Marcy, G.W., et al., 2006, ApJ, 646, 505 CrossRef
Cumming, A., 2004, MNRAS, 354, 1165 CrossRef
Konacki, M., & Maciejewski, A.J., 1999, ApJ, 518, 442 CrossRef
Murray, C.D., & Dermott, S.F., 2001, Solar System Dynamics (Cambridge University Press, Cambridge)