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Christopher edited 12 vs 13 [3].tex
almost 10 years ago
Commit id: ce3310c1bebd882eed3e71c848a843aa7346f989
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^{12}CO gives very inaccurate data when we assume that it is optically thin.
\subsection{Correction}
To correct for the fact that \textsuperscript{12}CO is opticaly thick, we We can use the
following equation: optically thin ^{13}CO data to correct the ^{12}CO.
\begin{equation} %\label{eqn:mass-energy}
\frac{ T_{\rm mb 12}}{T_{\rm mb 13}} = \frac{[^{12}{\rm CO}]}{[ ^{13}{\rm CO}]} \frac{1 - e^{-\tau_{12}}}{\tau_{12}} \\
\frac{1 - e^{-\tau_{12}}}{\tau_{12}} = \frac{ T_{\rm mb 12}}{T_{\rm mb 13}} \frac{[ ^{13}{\rm CO}]}{[^{12}{\rm CO}]}
from the Dunhan paper
\end{equation}
taken from the Dunhan paper. This
provides a correction for corrects the ^{12}CO data, by calculating the optical depth of each
\textsuperscript{12}CO voxel
based on the \textsuperscript{13}CO equivalent voxel. and multiplying by this factor. The results
of after this
correction are shown below.