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Update 4/23

Radiation Pressure

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Shadow recombination

\frac{\frac{dX}{dt}}{v_y} = \frac{dX}{dy} \propto \frac{(1-X)X(1+X)^{5.4}}{v_y}

Recombination rate \approx 15000;

\frac{dX}{dt} = \alpha (\frac{T}{10^4})^{-0.7} n_e n_{HII} = 7.56\times10^{-13} (\frac{2175}{10^4})^{-0.7} 84214000^2 = 1.56\times10^4

Recombination timescale = \frac1{n_e \alpha} = \frac1{84214000 7.56\times10^{-13}} = 15699 \approx 2\times \frac{R_p}{v_y} = 7360

Posted: 7 years ago (Updated: 7 years ago)
Author: adebrech
Categories: (none)

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