User:Tohline/Math/EQ RadialPulsation02

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LSU Key.png

<math>~0 = \frac{d^2x}{d\xi^2} + \biggl[ 4 + (n+1) Q \biggr] \frac{1}{\xi} \cdot \frac{dx}{d\xi} + (n+1) \biggl[\frac{\sigma_c^2}{6\gamma_g } \biggl( \frac{\xi^2}{\theta}\biggr) + \alpha Q\biggr] \frac{x}{\xi^2} </math>

where:    <math>~Q(\xi) \equiv \frac{d\ln\theta}{d\ln\xi}</math>,    <math>~\sigma_c^2 \equiv \frac{3\omega^2}{2\pi G\rho_c}</math>     and,     <math>~\alpha \equiv \biggl(3 - \frac{4}{\gamma_\mathrm{g}}\biggr)</math>