105 citations · 581 across the 24 of their papers we have counts for
3 papers · 1 filter
Shining Primordial Black Holes
Mark P. Hertzberg, Sami Nurmi, Enrico D. Schiappacasse +1
We study the well-motivated mixed dark matter (DM) scenario composed of a dominant thermal WIMP, highlighting the case of triplet fermion "winos", with a small fraction o…
Merger of Dark Matter Axion Clumps and Resonant Photon Emission
Mark P. Hertzberg, Yao Li, Enrico D. Schiappacasse
A portion of light scalar dark matter, especially axions, may organize into gravitationally bound clumps (stars) and be present in large number in the galaxy today. It is therefore…
Axion Star Nucleation in Dark Minihalos around Primordial Black Holes
Mark P. Hertzberg, Enrico D. Schiappacasse, Tsutomu T. Yanagida
We consider a general class of axion models, including the QCD and string axion, in which the PQ symmetry is broken before or during inflation. Assuming the axion is the dominant c…