Authors: Sarah Peery (Dartmouth), Yi-Hsin Liu (Dartmouth), Xiaocan Li (Dartmouth)

In this study, the scaling of relativistic reconnection is studied in the presence of both shear flows parallel to the reconnecting magnetic fields and out-of-plane guide fields. In non-relativistic reconnection, super-Alfvenic shears had been found to suppress reconnection. We extend MHD models of this behavior to the relativistic regime and find similar behavior, which is confirmed by Particle-in-Cell (PIC) simulations. The addition of a guide field lowers the relativistic Alfven velocity and contributes to slower outflow jets and more efficient suppression of reconnection.