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Dynamical Analysis of the 3:1 Resonance in the upsilon-Andromedae System | | Carlos E. Chavez
; Mauricio Reyes-Ruiz
; Hector Aceves
; | | Date: |
13 Aug 2011 | | Abstract: | We study the dynamics of the upsilon-Andromedae planetary system proposed by
Curiel et al. (2011). We focus on the study of the 3:1 Mean Motion Resonance
between upsilon-Andromedae-d and the recently discovered upsilon-Andromedae-e
(hereafter upsilon-And-d and upsilon-And-e). Numerical simulations of the
dynamics of the four planet system are conducted. The previously reported
apsidal resonance between upsilon-And-c and upsilon-And-d is confirmed. In
addition, we find that upsilon-And-d and upsilon-And-e are also in an apsidal
resonance condition. Our results further indicate that the upsilon-Andromedae
planetary system configuration is in the middle of a stability island in the
semimajor axis-eccentricity domain. Additionally, we performed numerical
integrations of the planetary configuration over 500 Myr and found it to be
stable. We conclude that, within the uncertainties in the value of the orbital
parameters, it is likely that upsilon-Andromedae planetary system will remain
stable for a long timescale. | | Source: | arXiv, 1108.2736 | | Services: | Forum | Review | PDF | Favorites | |
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