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Table 1

Parameters used in the reference model.

Ms Mass of central star 1.0 M
Zs Metallicity of central star 0.014
Mp Mass of planet 1.0 MJ
ap,int Initial semi-major axis of planet 20 AU
ap,fnl Final semi-major axis of planet 0.5 AU
ρp Mean density of planet 0.125 g cm−3
τtid,0 Scaling factor of migration timescale 1.0 × 105 yr
Rm Initial size of circumstellar disc 50 AU
Tm Temperature at r = Rm 40 K
αv Viscosity parameter of disc gas 1.0 × 10−2
fdisc Initial disc mass relative to central star 0.1
t0 Time of the onset of planetary migration 3.0 × 106 yr
Rpl Radius of planetesimal 1.0 × 106 cm
ρpl Mean density of planetesimal 2.0 g cm−3
Nsp Initial number of super-particles 10 000

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