Other
Scientific paper
Sep 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009dps....41.4005o&link_type=abstract
American Astronomical Society, DPS meeting #41, #40.05
Other
Scientific paper
We investigate formation of satellite systems of gaseous planets using N-body simulations including the effects of disk gas. Jovian satellite system has four large satellites, Galilean satellites, which are distributed between the vicinity of Jupiter and relatively outer region, and three of them are trapped in mutual mean motion resonances. On the other hand, Saturnian satellite system has only one large satellite, Titan. In order to explain these differences (number, orbital distribution, and resonant configuration) between Jovian satellite system and Saturnian one, Sasaki et al. (2009) has developed a satellite formation model with the idea of different conditions of disk inner edge around Jupiter and Saturn and different types of disk dissipation. Adopting this formation hypothesis, we perform N-body simulations of satellite accretion including the effects of disk gas (e.g., type I migration) to examine the formation of satellite systems in detail. Direct N-body simulations allow us to argue resonant trapping and dynamical behavior of bodies near the disk inner edge, thus we will discuss resonant configurations and orbital distributions of the formed satellites.
Ida Shigeru
Ogihara Masahiro
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