Kozai resonance and tidal friction as a way to explain the dynamical evolution of Gliese 436b

Details Kozai resonance and tidal friction as a way to explain the dynamical evolution of Gliese 436b Kozai resonance and tidal friction as a way to explain the dynamical evolution of Gliese 436b

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf..539b&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.539

Physics

Scientific paper

We present here an alternate model based on Kozai resonance (or Kozai mechanism), assuming again a distant perturber. Kozai mechanism is a major dynamical effects in non-coplanar systems that can trigger eccentricity modulations up to very high values [9, 7]. Basically, we suggest the presence of a distant giant planet perturber to GJ 436b, but we assume that both planets are not coplanar. If the initial inclination is high enough, then in a pure 3-body dynamics, GJ 436b's orbit is subject to drastic secular evolution that drives its eccentricity to very high values while its inclination is subject to large amplitude modulation.

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