Andrew Wetzel edited figures/qu.time_v_m.star_sat.first.t/caption.tex  about 9 years ago

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\label{fig:quench_times}  Environmental quenching timescales of satellite galaxies versus stellar mass, $\mstar$,  across the observable range of stellar mass, $\mstar$. range.  Top axis shows the satellite subhalo's $\mpeak$ based on abundance matching.  Blue circles show times for satellites of the Milky Way (MW) and M31, obtained by matching the observed quiescent fractions in Figure~\ref{fig:quiescent_fraction} to the virial-infall times of satellites from the ELVIS simulations \citep{Wetzel2015} in bins of $\mstar$.  Left panel shows time since first infall into the current MW/M31 halos, while right panel shows time since first infall into \emph{any} host halo, that is, including the (potential) effects of group preprocessing.  Satellites at $\star < 10 ^ 5 \msun$ (light blue) may have been quenched prior to virial infall via reionization, so their timescale should be interpreted with care.