Field lines from trace particles in a slingshot reconnection. This is an RR6 collision at ﹩\mathstrut{\cal T} =1﹩, with a uniform Lundquist number of ﹩S_{\eta }=2880﹩. The color scale shows the parallel electric current, which is strongest where reconnection is occurring. The interaction is shown at ﹩tv_{\mathrm{A}\,}/ R=[ 0,\ 12,\ 26,\ 38,\ 57,\ 115] ﹩.