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Table 1

Table of variable names.

Variable Variable description

γF Inclination between disc midplane and binary orbit plane
D Binary separation
ωB Binary orbit frequency
ΩF Precession frequency of the precessing frame and disc
Pd Orbital period at 20 AU
Md The disc mass used in a simulation
Our nominal disc mass (M)
h = H/R Disc aspect ratio
α Viscosity parameter
ρ Gas density
si Planetesimal physical radius
Vectors and coordinate quantities in the precessing frame denoted with the “hat” symbol
X Vectors and coordinate quantities in the fixed binary frame denoted without the “hat” symbol
a i Semi-major axis of planetesimal i
e i Eccentricity of planetesimal i
f i True anomaly of planetesimal i
α i Inclination angle between binary orbit plane and orbit plane of planetesimal i
ω i Longitude of pericentre of planetesimal i (also referred to as the apsidal precession angle)
Ωi Longitude of ascending node of planetesimal i (also referred to as the nodal precession angle)
δ i Inclination of planetesimal i relative to the local disc
α d Inclination of local disc annulus relative to the binary orbit plane
Ωd Precession angle of local disc
α i Inclination angle between binary orbit plane and orbit plane of planetesimal i

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