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astro-ph.CO2019★ 411 cited
Constraints on Earth-mass primordial black holes from OGLE 5-year microlensing events
Hiroko Niikura, Masahiro Takada, Shuichiro Yokoyama +2
We constrain the abundance of primordial black holes (PBH) using 2622 microlensing events obtained from 5-years observations of stars in the Galactic bulge by the Optical Gravitati…
astro-ph.CO2017
Microlensing constraints on primordial black holes with the Subaru/HSC Andromeda observation
Hiroko Niikura, Masahiro Takada, Naoki Yasuda +8
Primordial black holes (PBHs) have long been suggested as a viable candidate for the elusive dark matter (DM). The abundance of such PBHs has been constrained using a number of ast…