4 papers
Novel ringdown tests of general relativity with black hole greybody factors
Romeo Felice Rosato, Francesco Crescimbeni, Sophia Yi +2
We present GreyRing, a new model for the post-merger signal in black-hole binary coalescences based on the greybody factor of the remnant. The model accurately reproduces the full…
Not too close! Evaluating the impact of the baseline on the localization of binary black holes by next-generation gravitational-wave detectors
Francesco Iacovelli, Luca Reali, Emanuele Berti +3
Next-generation (XG) gravitational-wave detectors, such as Cosmic Explorer (CE) and the Einstein Telescope (ET), will observe compact binary coalescences at unprecedented rates and…
Gravitational Atoms from Topological Stars
Ibrahima Bah, Emanuele Berti, Bogdan Ganchev +2
We study the bound states of a massive scalar field around a topological star, and show that these are strictly normal modes. This yields a genuine gravitational atom, sharply dist…
Extreme mass ratio inspirals in rotating dark matter spikes
Soumodeep Mitra, Nicholas Speeney, Sumanta Chakraborty +1
Gravitational wave (GW) signals from extreme mass ratio inspirals (EMRIs) are a key observational target for the Laser Interferometer Space Antenna (LISA). The waveforms may be aff…