8 papers
Gamma Rays from ALP-Photon Conversion and Inverse Compton Reprocessing in Neutron Star Magnetospheres
Federica Giacchino, Conrado A. Torres, Giorgio Galanti +3
Exploring axion-like particle (ALP) signatures from neutron stars (NSs) in the \emph{Fermi}-LAT energy range remains largely unexplored. Neutron stars with exceptionally strong mag…
Dark matter mounds from the collapse of supermassive stars: a general-relativistic analysis
Roberto Caiozzo, Gianfranco Bertone, Piero Ullio +3
Recent work has highlighted the importance of a fully relativistic treatment of the dephasing of gravitational waves induced by dark-matter overdensities in extreme mass-ratio insp…
Hints of Dark Matter Spikes in Low-mass X-ray Binaries: a critical assessment
Francesca Scarcella, Bradley J. Kavanagh
Three black-hole low-mass X-ray binaries (LMXBs) in the Milky Way show rates of period decay which cannot be easily explained by standard mechanisms. Recently, it has been claimed…
A Fast Earth-scattering Formalism for Light Dark Matter with Dark Photon Mediators
AgustÃn Lantero-Barreda, Carlos Centeno-Lorca, Bradley J. Kavanagh +1
While Dark Matter (DM) is typically assumed to interact only very weakly with the particles of the Standard Model, many direct detection experiments are currently exploring regions…
Sharpening the dark matter signature in gravitational waveforms I: Accretion and eccentricity evolution
Theophanes K. Karydas, Bradley J. Kavanagh, Gianfranco Bertone
Dark matter overdensities around black holes can alter the dynamical evolution of a companion object orbiting around it, and cause a dephasing of the gravitational waveform. Here,…
Dark Matter Mounds: towards a realistic description of dark matter overdensities around black holes
Gianfranco Bertone, A. Renske A. C. Wierda, Daniele Gaggero +3
Dark matter overdensities around black holes can be searched for by looking at the characteristic imprint they leave on the gravitational waveform of binary black hole mergers. Cur…