Dynamical Stability of the 3 Earth-sized Planets System, Gliese 581

Details Dynamical Stability of the 3 Earth-sized Planets System, Gliese 581 Dynamical Stability of the 3 Earth-sized Planets System, Gliese 581

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007jena.confq...6b&link_type=abstract

"JENAM-2007, "Our non-stable Universe", held 20-25 August 2007 in Yerevan, Armenia. Abstract book, p. 6-6"

Physics

Scientific paper

Gl581 is an M-type dwarf harbouring a 3 Earth-sized planets system (Udry et al. 2007). The middle planet lies within the habitable zone of this star. We investigate the dynamical stability of this system using the symplectic N-body code SYMBA (Lee et al. 1998). The systems appear remarkably stable. The eccentricity of the small planet ranges secularly between 0 and 0.15. We also test different inclinations and eccentricities. In any case (apart from nearly pole-on), we have stability. We can safely stress that this system, and thus the planetary climate, is stable. This makes the habitable planet potentially suitable for life development.

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