Abstract
Very early measurements of SN 1987A (87 A) indicate an intense beam of light and jet of particles (BJ), which still ran ahead of a slower, cooler, shrouding flow, cooled itself, or lost the ability to do so, before impacting polar ejecta (PE) remaining from the binary merger which formed Sk ‐69 °202. The photon beam scattered off/reprocessed in, without significantly penetrating, the PE, producing 2×1039 ergs s−1 for about a day at day 8.0, the same delay predicted from the 0.059 arc s offset (17 light‐days in projection) of the “Mystery Spot” (MS), and from the ring/bipolar geometry (the many other details of 87A also strongly suggest that it resulted from a merger of 2 stellar cores of a common envelope (CE) binary, i.e., a “double‐degenerate” [DD] event). This scattered flux then decayed for a day with a timescale consistent with the UV flash, after which the luminosity exceeded the day 8.0 value by day 10.0, and continued rising linearly with time, indicating: (1) particles from the jet penetrating in...
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