766 citations · 3k across the 55 of their papers we have counts for
49 papers
Neutron stars as probes of dark matter
M. Ángeles Pérez-García, J. Silk
Neutron Stars (NSs) are compact stellar objects that are stable solutions in General Relativity. Their internal structure is usually described using an equation of state that invol…
Fornax globular cluster distributions: implications for the cusp-core problem
P. Boldrini, R. Mohayaee, J. Silk
We re-investigate the Fornax cusp-core problem using observational results on the spatial and mass distributions of globular clusters (GCs) in order to put constraints on the dark…
Unbound geodesics from the ergosphere and potential observability of debris from ultrahigh energy particle collisions
J. Gariel, N. O. Santos, J. Silk
Particle collisions in black hole ergoregions may result in extremely high center of mass energies that could probe new physics if escape to infinity were possible. Here we show th…
Cosmic Conundrums
Joseph Silk
What do we do when cosmology raises questions it cannot answer? These include the existence of a multiverse and the universality of the laws of physics. We cannot settle any of the…
Constraining decaying dark matter with neutron stars
M. Angeles Perez-Garcia, J. Silk
The amount of decaying dark matter, accumulated in the central regions in neutron stars together with the energy deposition rate from decays, may set a limit on the neutron star su…
Anisotropy in Cosmic rays from internal transitions in neutron stars
M. Angeles Perez-Garcia, K. Kotera, J. Silk
We discuss the possibility that some recently measured anisotropic cosmic ray components in the TeV-PeV energy range may be an indication of the ejection of a peculiar type of matt…