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Ewan D. Barr edited scattering part2.tex
over 8 years ago
Commit id: 9dbe21e87ecd2339cac37cc657c46b8b28c3e283
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\end{equation}
where $\tau_s$ is the scattering time in seconds and $\nu$ is the observing frequency in GHz. The scatter of measured values about this relation ship has a standard deviation of several orders of magnitude. In the remainder of this document we take a conservative approach and assume scattering times 4 orders of magnitude smaller than those suggested by the above relation, i.e. the best-case scattering. As we will see, this approach results in reasonable requirements on the SKA1 pulsar timing instrumentation.
\begin{equation}
\log_{10}
\tau_s_{\rm \tau_s{\rm best} = -13.46 + 0.154 \log_{10} {\rm DM}+ 1.07 (\log_{10} {\rm DM})^2 - 3.86 \log_{10}{\nu}.
\end{equation}
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