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Table 1

Simulation setup.

Parameter value
N (MW) 6 × 104
N (M 31) 16 × 104
BOXLEN 4 Mpc
LEVELMIN 7
LEVELMAX 15
rini (MW) (−187.45, 41.875, −103.44) kpc
vini (MW) (236.13, −13.745, 124.83) km s−1
rini (M 31) (70.351, −15.716, 38.820) kpc
vini (M 31) (−88.406, 5.1461, −46.736) km s−1

Notes. N(x): initial number of particles in the galaxy x. BOXLEN: size of the computational cube. LEVELMIN: minimum refinement level. LEVELMAX: maximum refinement level. rini (x): initial position of the galaxy x. vini (x): initial velocity of the galaxy x. The PoR/RAMSES parameters not listed here were left as the default settings.

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