Stefano Profumo

Same Events, Weaker Bound: Model Dependence in Magellanic Microlensing Limits on Primordial Black Holes

OGLE microlensing of the Magellanic Clouds sets the leading bounds on primordial black holes (PBHs) as dark matter from $10^{-8}$ to $10^{3}\,M_\odot$. Holding the detected events and survey efficiencies fixed, we show that changes to the Milky Way halo, the stellar lens populations and the Large Magellanic Cloud halo,...