1604.08594
Are some Milky Way globular clusters hosted by undiscovered galaxies?
Zaritsky, Crnojevic, Sand
For an empirically determined specific frequency of between 0.06 and 0.39 globular clusters (GCs) per 1e9 Msun of total mass, the surviving MWsubhloes with masses smaller than 1e10 Msun could host as many as 5 to 31 GCs, broadly consistent with the actual population of outer halo MW GCs, although matching the radial distribution in detail remains a challenge. Find that about 90% of these GCs lie in lower-mass sub haloes than that of Eri II. From what is known about the stellar mass-halo mass function, the sub halo mass function, and the mass normalized GC specific frequency, conclude that some of the MW's outer halo GCs are likely to be hosted by undetected suhalos with extremely modest stellar populations.
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