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The Radiative-Convective Boundary: What Splits a Star’s Interior in Two
Crack open any stellar interior and you find two fundamentally different regimes of energy transport: radiation and convection. In a radiative zone, photons carry energy outward through a sea of plasma, scattering millions of times before advancing even a centimeter. In a convective zone, buoyant blobs of hot gas rise, cool, and sink in a…
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