3 papers
astro-ph.HE2026
Constraints on magnetic monopoles from X-ray observations of neutron stars
Mainak Mukhopadhyay, Daniele Perri, Edward W. Kolb
Magnetic monopoles are captured efficiently by neutron stars, and if they catalyze nucleon decay, the decay products would thermalize and generate observable X-ray surface emission…
hep-ph2025
Recasting Experimental Constraints on Relativistic Magnetic Monopoles
Daniele Perri, Michele Doro, Takeshi Kobayashi
Magnetic monopoles with masses up to GeV can be accelerated to relativistic velocities in Galactic and intergalactic magnetic fields. The cosmic flux of relativistic mono…
astro-ph.CO2024
Gravothermalizing into primordial black holes, boson stars, and cannibal stars
Pranjal Ralegankar, Daniele Perri, Takeshi Kobayashi
Very little is known about the cosmological history from after the end of inflation until Big Bang Nucleosynthesis. Various well-motivated models predict that the universe could ha…