Distribution of magnetic field lines projected in the x − y plane, and spatial variations of absolute current density (|J_z|), plasma density, temperature, and thermal pressure are shown from left to right in each panel. The evolution of the above quantities for three different times t = 81.58, 120.22, and 137.39 s are shown in the top, middle, and bottom panels, respectively. The units of |J_z| are chosen arbitrarily, and the maximum saturation limit of the color bar is chosen as 2 for clarity of the enhanced current structures. An associated animation (merging_plasmoids.mp4) corresponding to this figure is available online.