Andrew Wetzel edited quiescent_fraction.tex  about 9 years ago

Commit id: c411ee5f5b5b6a80e090e2d30617fecf62c2caf8

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Of the 56 satellites in Figure~\ref{fig:quiescent_fraction}, only 4 (7\%) are star-forming/gas-rich: the LMC and SMC around the MW, LGS 3 and IC 10 around M31.  Moreover, at $\mstar<8\times10^7\msun$, only 1 (LGS 3) of the 51 satellites are star-forming, and at $\mstar<9\times10^5\msun$ \emph{all} 40 satellites are quiescent.  These near-unity quiescent fractions for satellite dwarf galaxies  contrast strongly with the effectively \emph{zero} quiescent fraction\citep{Geha2012, Phillips2014}  for dwarf galaxiesat $\mstar<10^9\msun$  that are isolated ($>1500\kpc$ from a more massive host). host) \citep{Geha2012, Phillips2014}.  The only known exception is KKR 25, a dwarf spheroidal with $\mstar=1.4\times10^6\msun$ that is $1853\kpc$ from M31.