Solitary magnetic structures at quasi‐parallel collisionless shocks: Formation

L.-J. Chen acknowledges S. Schwartz, D. Caprioli, C. Haggerty, M. Weidl, D. Ellison, E. Zweibel, and J. Drake for discussions. The research at GSFC and UMCP is supported in part by the MMS mission, DOE grants DESC0016278, DESC0020058, NSF AGS-1619584, AGS-2010231, and NASA 80NSSC18K1369.