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We present a detailed analysis of the properties of magnetic reconnection atlarge-scale current sheets in a high cadence version of the Lynch & Edmondson(2013) 2.5D MHD simulation of sympathetic magnetic breakout eruptions from apseudostreamer source region. We examine the resistive tearing and breakup ofthe three main current sheets into chains of X- and O-type null points andfollow the dynamics of magnetic island growth, their merging, transit, andejection with the reconnection exhaust. For each current sheet, we quantify theevolution of the length-to-width aspect ratio (up to $\sim$100:1), Lundquistnumber ($\sim$10$^3$), and reconnection rate (inflow-to-outflow ratios reaching$\sim$0.40). We examine the statistical and spectral properties of thefluctuations in the current sheets resulting from the plasmoid instability,including the distribution of magnetic island area, mass, and flux content. Weshow that the temporal evolution of the spectral index of thereconnection-generated magnetic energy density fluctuations appear to reflectglobal properties of the current sheet evolution. Our results are in excellentagreement with recent, high resolution reconnection-in-a-box simulations eventhough our current sheets' formation, growth, and dynamics are intrinsicallycoupled to the global evolution of sequential sympathetic CME eruptions.

Reconnection Properties of Large-Scale Current Sheets During Coronal Mass Ejection Eruptions