Maps of the CCF_intr during the transit of GJ 436b in Visits 1 (upper panel) and 2 (lower panel). Left panels show measured profiles. The core of the stellar line from the planet-occulted regions is clearly visible as a bright streak, with side lobes visible on both sides as dark streaks. Middle panels show the RM Revolutions best-fit profiles. Right panels show residuals between measured and theoretical profiles. Transit contacts are shown as green dashed lines. Values are colored as a function of the flux, and plotted as a function of RV in the star rest frame (in abscissa) and orbital phase (in ordinate). The green solid line shows the stellar surface RV model from the RM Revolutions best fit.