Table A.1

Number of pairs in the Magneticum simulation cosmological volume Box2/hr at z = 0.07 for different selection criteria based on the pair members three-dimensional (3D) and projected (2D) distance and mass ratios.

d3D < 10Mpc d3D < 15Mpc d3D < 20Mpc d2D < 5 Mpc d2D < 10 Mpc

any M1/M2 40 88 146 135 535
M1/M2 < 2 26 55 97
M1/M2 < 1.5 19 42 78
M1/M2 < 1.2 13 27 51


any M1/M2 8 15 25 27 82
M1/M2 < 2 8 15 24
M1/M2 < 1.5 8 15 24
M1/M2 < 1.2 7 11 19

Notes. The 2D distance d2D considers any projection out of the three main Cartesian directions, that is, we report the number of pairs for which the projected distance on at least one of the projection planes is < 5(10) Mpc (i.e. dxy < 5(10) Mpc V dxz < 5(10) Mpc V dyz < 5(10) Mpc).

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