All Outputs (4)

Implications of stochastic gas torques for asymmetric binaries in the LISA band (2025)
Journal Article
Copparoni, L., Barausse, E., Speri, L., Sberna, L., & Derdzinski, A. (2025). Implications of stochastic gas torques for asymmetric binaries in the LISA band. Physical Review D, 111(10), Article 104079. https://doi.org/10.1103/physrevd.111.104079

Gravitational waves from asymmetric mass-ratio black-hole binaries carry unique information about their astrophysical environment. For instance, the Laser Interferometer Space Antenna (LISA) could potentially measure the amplitude and slope of gas to... Read More about Implications of stochastic gas torques for asymmetric binaries in the LISA band.

Constraining accretion physics with gravitational waves from eccentric extreme-mass-ratio inspirals (2025)
Journal Article
Duque, F., Kejriwal, S., Sberna, L., Speri, L., & Gair, J. (2025). Constraining accretion physics with gravitational waves from eccentric extreme-mass-ratio inspirals. Physical Review D, 111(8), Article 084006. https://doi.org/10.1103/physrevd.111.084006

We study the evolution of eccentric, equatorial extreme-mass-ratio inspirals (EMRIs) immersed in the accretion disks of active galactic nuclei. We find that single gravitational-wave observations from these systems could provide measurements with ∼1... Read More about Constraining accretion physics with gravitational waves from eccentric extreme-mass-ratio inspirals.

Systematics in tests of general relativity using LISA massive black hole binaries (2024)
Journal Article
Garg, M., Sberna, L., Speri, L., Duque, F., & Gair, J. (2024). Systematics in tests of general relativity using LISA massive black hole binaries. Monthly Notices of the Royal Astronomical Society, 535(4), 3283-3292. https://doi.org/10.1093/mnras/stae2605

Our current understanding is that an environment – mainly consisting of gas or stars – is required to bring massive black hole binaries (MBHBs) with total redshifted mass Mz ∼ [104, 107] M to the LISA band from parsec separation. Even in the gravitat... Read More about Systematics in tests of general relativity using LISA massive black hole binaries.

Relativistic Perturbation Theory for Black-Hole Boson Clouds (2024)
Journal Article
Cannizzaro, E., Sberna, L., Green, S. R., & Hollands, S. (2024). Relativistic Perturbation Theory for Black-Hole Boson Clouds. Physical Review Letters, 132(5), Article 051401. https://doi.org/10.1103/PhysRevLett.132.051401

We develop a relativistic perturbation theory for scalar clouds around rotating black holes. We first introduce a relativistic product and corresponding orthogonality relation between modes, extending a recent result for gravitational perturbations.... Read More about Relativistic Perturbation Theory for Black-Hole Boson Clouds.