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Andrew Wetzel edited quenching_time.tex
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Both panels show shorter median quenching timescales for less massive satellites: $\sim5\gyr$ at $\mstar=10^{8-9}\msun$, $2-3\gyr$ at $\mstar=10^{7-8}\msun$, and $ < 1.5\gyr$ at $\mstar<10^7\msun$, depending on the inclusion of group preprocessing.
Moreover, the median timescale for two of the lowest $\mstar$ bins is $0\gyr$ because 100\% of those satellites are quiescent, which implies extremely rapid quenching after infall.
This mass trend is
broadly consistent the results of
\citep{Weisz2015} \citep{Weisz2015}, based on star-formation histories, that more massive dwarf galaxies in the LG quenched more recently.
We next compare these statistically based quenching timescales to infall timescales directly measured for satellites of the MW.
The 3-D orbital velocity measured for the LMC/SMC strongly suggests that they are on their first infall and passed inside $\rvir$ of the MW $\approx2\gyr$ ago \citep{Kallivayalil2013}.