Discovery of an Optical Counterpart to the Supersoft X-ray Source in the Globular Cluster M3

Peter D. Edmonds, Peter Kahabka, Craig O. Heinke

We report the detection, with HST, of an optical counterpart to the transient supersoft X-ray source 1E 1339.8+2837, in the globular cluster M3. The counterpart is found near the f…