Quiescent and active galactic nuclei as factories of merging compact objects in the era of gravitational wave astronomy

M Arca Sedda, S Naoz, B Kocsis - Universe, 2023 - mdpi.com
Galactic nuclei harbouring a central supermassive black hole (SMBH), possibly surrounded
by a dense nuclear cluster (NC), represent extreme environments that house a complex …

Black holes in galaxies: Environmental impact on gravitational-wave generation and propagation

V Cardoso, K Destounis, F Duque, RP Macedo… - Physical Review D, 2022 - APS
We introduce a family of solutions of Einstein's gravity minimally coupled to an anisotropic
fluid, describing asymptotically flat black holes with “hair” and a regular horizon. These …

Detecting massive scalar fields with extreme mass-ratio inspirals

S Barsanti, A Maselli, TP Sotiriou, L Gualtieri - Physical Review Letters, 2023 - APS
We study the imprint of light scalar fields on gravitational waves from extreme mass-ratio
inspirals—binary systems with a very large mass asymmetry. We first show that, to leading …

Forecasting constraints on deviations from general relativity in gravity with standard sirens

R D'Agostino, RC Nunes - Physical Review D, 2022 - APS
In this work, we explore how modified gravity theories based on the nonmetricity scalar,
known as f (Q) gravity, affect the propagation of gravitational waves from inspiraling of binary …

Observationally driven Galactic double white dwarf population for LISA

V Korol, N Hallakoun, S Toonen… - Monthly Notices of the …, 2022 - academic.oup.com
Realistic models of the Galactic double white dwarf (DWD) population are crucial for testing
and quantitatively defining the science objectives of the Laser Interferometer Space Antenna …

Identifying LISA verification binaries among the Galactic population of double white dwarfs

E Finch, G Bartolucci, D Chucherko… - Monthly Notices of …, 2023 - academic.oup.com
Double white dwarfs (DWDs) will be the most numerous gravitational-wave (GW) sources for
the Laser Interferometer Space Antenna (LISA). Most of the Galactic DWDs will be …

Extreme mass-ratio inspirals as probes of scalar fields: Eccentric equatorial orbits around Kerr black holes

S Barsanti, N Franchini, L Gualtieri, A Maselli… - Physical Review D, 2022 - APS
We study binary systems in which a stellar mass compact object spirals into a massive black
hole, known as extreme mass ratio inspirals, in scenarios with a new fundamental scalar …

Detection of astrophysical gravitational wave sources by TianQin and LISA

A Torres-Orjuela, SJ Huang, ZC Liang, S Liu… - Science China Physics …, 2024 - Springer
TianQin and LISA are space-based laser interferometer gravitational wave (GW) detectors
planned to be launched in the mid-2030s. Both detectors will detect low-frequency GWs …

Gravitational waves from first-order phase transitions in LISA: reconstruction pipeline and physics interpretation

C Caprini, R Jinno, M Lewicki, E Madge… - … of Cosmology and …, 2024 - iopscience.iop.org
We develop a tool for the analysis of stochastic gravitational wave backgrounds from
cosmological first-order phase transitions with LISA: we initiate a template databank for …

Probing wave-optics effects and low-mass dark matter halos with lensing of gravitational waves from massive black holes

M Çalışkan, N Anil Kumar, L Ji, JM Ezquiaga… - Physical Review D, 2023 - APS
The Laser Interferometer Space Antenna (LISA) will detect gravitational waves (GWs)
emitted by massive black hole binaries (MBHBs) in the low-frequency (∼ mHz) band. Low …