39 citations · 39 across the 1 of their papers we have counts for
3 papers
astro-ph.HE2020★ 39 cited
Constraining Primordial Black Hole Fraction at the Galactic Centre using radio observational data
Man Ho Chan, Chak Man Lee
Recent gamma-ray and cosmic-ray observations have put strong constraints on the amount of primordial black holes (PBHs) in our universe. In this article, we use the archival radio…
astro-ph.HE2018
Constraining the population of intermediate mass black holes by gamma-ray data of the Fornax cluster
Man Ho Chan
Recent studies of merging black holes suggest that the cosmological mass fraction of primordial black holes (PBHs) is not completely negligible. The mass of a PBH can be as massive…
astro-ph.HE2018
Constraining dark matter by the 511 keV line
Man Ho Chan, Chung Hei Leung
In the past few decades, observations indicated that an unexplained high production rate of positrons (the strong 511 keV line) exists in the Milky Way center. By using the fact th…