A globular cluster naturally emerges in the high-resolution EDGE simulations. (IMAGE)
Caption
A globular cluster (white concentration of stars) naturally emerges in the high resolution EDGE simulations. These simulations also predict the existence of a new class of object: globular cluster-like dwarfs. These new objects form similarly to globular clusters but in their own dark matter halo. The nearby Reticulum II dwarf galaxy may be such an object that has been hiding in plain sight in our cosmic backyard. If so, it promises unprecedented constraints on the nature of dark matter and a new place to hunt for the first metal-free stars.
Credit
University of Surrey, Matt Orkney, Andrew Pontzen & Ethan Taylor
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