Evidence that SOL2012-06-03 Late Phase $\gamma$ Rays are Produced by $>$300 MeV Protons from CME-Shock Acceleration of Suprathermals from the Flare

Gerald H. Share, Ronald J. Murphy

A recent paper on SOL2012-06-03 reported the detection for the first time of two distinct phases of $>$100 MeV $\gamma$-radiation indicating separate acceleration processes. But such tw…