Distribution of ANTARES events in the (R.A., δ) coordinates around the position of TXS 0506+056. The inner (outer) green line depicts the one (five) degree distance from the source position, indicated as a gray star. The red point denotes a shower-like event, whereas the blue points indicate track-like events. The dashed circles around the events indicate the angular error estimate. The different shades of red and blue correspond to the values assumed by the energy estimators, and the right legend shows the color scales. The number of hits is used for shower-like events and the ρ parameter is used for track-like events. Refer to Albert et al. (2017a) for further details on the energy estimators.