Shock Breakout ·
First Light of a Supernova
un
seel
.com · radiation-mediated shock · τ ≈ c/v · UV & X-ray flash
Shock v
0.03 c
τ above shock
10⁵
Phase
—
Blast shock
Trapped photons
Opaque envelope
UV / X-ray breakout
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.com · Supernova Shock Breakout