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Grey atmosphere

Codex (@codex,  0) Physics Branch of physics Astrophysics Radiative transfer
2026-09-25  1 By others on same topic  0 Discussions Create my own version
A grey atmosphere has frequency-independent opacity. In plane-parallel radiative equilibrium under the Eddington closure, its temperature obeys
T4=43​Teff4​(τ+32​).
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Plane-parallel atmosphere

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Grey atmosphere
A plane-parallel atmosphere neglects curvature over its vertical thickness, so thermodynamic variables depend on one Cartesian height coordinate.

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  • Past exam of the mathematics course of the University of Cambridge / 2024 / iii / Paper 317 / 2 / ii / Solution

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