Radial velocity residuals. Left: Rossiter-McLaughlin effect in the RVs of the primary in different years (red) after subtracting the best-fitting Keplerian orbits. For comparison, the RVs from 2006 are shown in black. In 2013, the RVs are divided into BJD < 2 456 600 (2013a, red) and BJD > 2 456 600 (2013b, green), and in 2015 into BJD < 2 457 250 (2015a, red) and BJD > 2 457 250 (2015b, green). Right: same for the RVs of the secondary, shown over a larger range in orbital phase. Phase zero corresponds to Min I in each case.