8 papers
Particle Physics and Gravitational Waves as complementary windows on the Universe
Steven D. Bass, Laura Baudis, Gianfranco Bertone +16
Particle physics and gravitational waves provide complementary probes of the deep structure of the Universe. Gravitational waves from the mergers of neutron stars and black holes a…
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…
Measuring the neutron star equation of state from EMRIs in dark matter environments with LISA
Theophanes K. Karydas, Gianfranco Bertone
Gravitational-wave observations of extreme mass-ratio inspirals (EMRIs) in vacuum are largely insensitive to the internal structure of the small compact companion. We show that thi…
Fully Relativistic Treatment of Extreme Mass-Ratio Inspirals in Collisionless Environments
Rodrigo Vicente, Theophanes K. Karydas, Gianfranco Bertone
Future mHz gravitational wave (GW) interferometers will precisely probe massive black hole environments, such as accretion discs, cold dark matter overdensities, and clouds of ultr…
Mass and spin coevolution of black holes inspiralling through dark matter
Theophanes K. Karydas, Rodrigo Vicente, Gianfranco Bertone
In extreme/intermediate-mass-ratio inspirals (E/IMRIs) embedded in dark-matter (DM) spikes, the secondary black hole can accrete collisionless particles from the surrounding halo.…
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,…