deletions | additions       diff --git a/observations.tex b/observations.tex  index d933944..8951335 100644  --- a/observations.tex  +++ b/observations.tex 
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The observed dwarf galaxies show a tight correlation between their morphology, star formation, and cold gas content, such that all (?) of the dwarf spheroidals have little-to-no detectable gas or ongoing star formation, and all (?) of the dwarf irregulars have a significant fraction of their baryonic mass in cold gas and ongoing star formation.  Thus, we define ``quiescent'' satellites as those that have $\mgas/\mstar<0.1$ or are classified as having spheroidal morphology if they have no cold gas constraints.  Thus, by this definition, the only star-forming, gas-rich satellites in the LG are: LMC ($\mstar=1.5\times10^9\msun$, $\mgas/\mstar\approx0.3$) and SMC ($\mstar=4.6\times10^8\msun$, $\mgas/\mstar\sim1$) around the MW, and LGS 3 ($\mstar=9.6\times10^5\msun$, $\mgas/\mstar\approx0.4$) and IC 10 ($\mstar=9\times10^7$, $\mgas/\mstar\approx0.6$) around M31.  (While %(While  Sculptor has $\mgas / \mstar \approx 0.096$, we consider it quiescent based on its morphology and lack of recent star formation \citep{Weisz2014a}). (Dan or Erik - can you say something about comparing these cuts with either SFR metrics or SFHs? Specifically, I am glossing over any ambiguous systems?)  In measuring the fraction of satellites that are quiescent, we group them into 1-dex bins of $\mstar$.