Table 1 Parameters of the fiducial model

From: No certainty of a Milky Way–Andromeda collision

Galaxy

M200 (1010M)

c

μ

μα* (μas yr−1)

μδ (μas yr−1)

vlos (km s−1)

MW

100 ± 20

10 ± 2

M31

130 ± 40

10 ± 2

24.407 ± 0.032 (ref. 27)

48.9 ± 10.5 (ref. 29)

−36.9 ± 8.1 (ref. 29)

−301 ± 1 (ref. 94)

M33

30 ± 10

10 ± 2

24.67 ± 0.07 (ref. 26)

31 ± 19 (ref. 13)

−29 ± 16 (ref. 13)

−179.2 ± 1.8 (ref. 1)

LMC

15 ± 5

10 ± 2

18.477 ± 0.026 (ref. 25)

1,910 ± 20 (ref. 28)

229 ± 47 (ref. 28)

262.2 ± 3.4 (ref. 1)

SMC

1.5 ± 0.5

10 ± 2

18.99 ± 0.03 (ref. 95)

722 ± 63 (ref. 28)

−1,117 ± 61 (ref. 28)

145.6 ± 0.6 (ref. 96)