A simulated collision between a Type Ia supernova's ejecta and its white dwarf donor produces a hot, high-velocity wake that brightens the early light curve over half the sky, then dims wake-aligned observers by about 15 percent at one day.
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The First Day of a Type Ia Supernova from a Double-Degenerate Binary
A simulated collision between a Type Ia supernova's ejecta and its white dwarf donor produces a hot, high-velocity wake that brightens the early light curve over half the sky, then dims wake-aligned observers by about 15 percent at one day.