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Jordan Sligh edited section_Creation_of_a_Magnetosphere__.tex
over 8 years ago
Commit id: 529583d0ea2801759f081cae7b6cf86ee4545d11
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Consolidating the necessary equations we find that
$t_{con} =
\frac{T_{outer}}{g}[(\frac{dT}{dr})_ad-\frac{\delta{T}}{\delta{r}})^{-1}]$ \frac{T_{outer}}{g}[(\frac{dT}{dr})_{ad}-\frac{\delta{T}}{\delta{r}})^{-1}]$
where the adiabatic gradient
$(dt/dr)_ad $(\frac{dT}{dr})_{ad} =
(\gamma - 1)/\gamma T_outer/P_c dP/dr$ \frac{\gamma-1}{\gamma} \frac{T_{outer}}{P_c} \frac{dP}{dr}$
and
$dP/dr \frac{dP}{dr} =
-4/3\piG\rho^2R_inner$, $g=4/3\piG\rhoR_inner$, -\frac{4\pi}{3}G\rho^2R_{inner}$, $g=\frac{4\pi}{3}G\rhoR_{inner}$, and the planet's central pressure $P_c =
2/3\piG\rho^2R_p^4$. \frac{2\pi}{3}G\rho^2R_p^4$.
Plugging in all equations and solving for
$T_inner$, $T_{inner}$, we find that
$T_{inner} >
1.035T_outer$ 1.035T_{outer}$
Plugging in $T_{outer} ~= 2400K$, we see that we will need a minimum temperature of
$T_inner $T_{inner} ~= 2500K$ in order to induce convection in the outer core and create a magnetic field.