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2013MNRAS.431.2150W - Mon. Not. R. Astron. Soc., 431, 2150-2154 (2013/May-3)
On the dynamical stability of the proposed planetary system orbiting NSVS 14256825.
WITTENMYER R.A., HORNER J. and MARSHALL J.P.
Abstract (from CDS):
For the scenario where the planetary orbits are coplanar, a small region of moderate stability was observed, featuring orbits that were somewhat protected from destabilization by the influence of mutual 2:1 mean-motion resonance between the orbits of the planets. Even in this stable region, however, the systems tested typically only survived on time-scales of the order of 1 Myr, far shorter than the age of the system.
Our results suggest that if there are planets in the NSVS 14256825 system, they must move on orbits dramatically different to those proposed in the discovery work. More observations are clearly critically required in order to constrain the nature of the suggested orbital bodies.
Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)
Journal keyword(s): planets and satellites: dynamical evolution and stability - binaries: close - binaries: eclipsing - stars: individual: NSVS 14256825 - planetary systems
Simbad objects: 7
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