8 papers
On the orbital eccentricities of primordial black hole binaries inside and outside of dark matter halos
Muhsin Aljaf, Ilias Cholis
Primordial black hole (PBH) binaries in the stellar mass range may still contribute a fraction of the detectable compact object binaries by LIGO and future GW observatories. PBH bi…
Galactic Center gamma-ray excess from a generic triaxial halo
Leo Qiyuan Hu, Ilias Cholis, Yi-Ming Zhong
Recent studies of Galactic surveys, such as Gaia, have revealed that the Milky Way's gravitational potential comes from a matter distribution that is triaxial and rotated with resp…
Limits on primordial black holes from the extragalactic gamma-ray background; current status and future projections
Ilias Cholis, Iason Krommydas, John Carlini
Primordial black holes (PBHs), possibly formed from the collapse of early universe perturbations, will evaporate via Hawking radiation with a lifetime comparable to the age of the…
Conservative limits on primordial black holes from the LIGO-Virgo-KAGRA observations
Mehdi El Bouhaddouti, Muhsin Aljaf, Ilias Cholis
Primordial black holes (PBH) may constitute a considerable fraction of dark matter. In this work we use the recent observations by the LIGO-Virgo-KAGRA (LVK) collaborations to set…
Binary Black Holes population synthesis based on the current LVK observations
Mehdi El Bouhaddouti, Ilias Cholis, Muhsin Aljaf
The ongoing observations from ground based gravitational-wave observatories have led to the detection of more than a hundred merger events between black holes. We use the LIGO-Virg…
The Merger Rate of Primordial Black Holes
Muhsin Aljaf, Ilias Cholis
The merger rate of primordial black hole (PBH) binaries can be used to understand the source population of the merging black hole binaries observable through gravitational-waves (G…