Panels a–e: HMI longitudinal magnetograms of AR NOAA 12736 showing the evolution of the magnetic polarities. The jet reconnection is occurring between the two large emerging flux areas EMF1 (P1, N1) and EMF2 (P2, N2) encompassed in the two ovals drawn in panels b and d. The emergence of the EMFs is shown by the extension of the two ovals between these two times. Panel f: HMI continuum image showing the sunspots and pores of the AR. The blue and green contours are for negative, and positive magnetic field polarities with label ±300 Gauss. The red rectangular box in panel e shows the FOV of Figs. 2a and 11a and b.