Resonant history of gravitational atoms in black hole binaries

GM Tomaselli, TFM Spieksma, G Bertone - Physical Review D, 2024 - APS
Rotating black holes can produce superradiant clouds of ultralight bosons. When the black
hole is part of a binary system, its cloud can undergo resonances and ionization. These …

Waveform modelling for the laser interferometer space antenna

N Afshordi, S Akçay, PA Seoane, A Antonelli… - arxiv preprint arxiv …, 2023 - arxiv.org
LISA, the Laser Interferometer Space Antenna, will usher in a new era in gravitational-wave
astronomy. As the first anticipated space-based gravitational-wave detector, it will expand …

Adiabatically compressed wave dark matter halo and intermediate-mass-ratio inspirals

H Kim, A Lenoci, I Stomberg, X Xue - Physical Review D, 2023 - APS
The adiabatic growth of a central massive black hole could compress the surrounding dark
matter halo, leading to a steeper profile of the dark matter halo. This phenomenon is called …

Secondary accretion of dark matter in intermediate mass-ratio inspirals: Dark-matter dynamics and gravitational-wave phase

DA Nichols, BA Wade, AM Grant - Physical Review D, 2023 - APS
When particle dark matter is bound gravitationally around a massive black hole in sufficiently
high densities, the dark matter will affect the rate of inspiral of a secondary compact object …

Gravitational radiation from hyperbolic encounters in the presence of dark matter

A Chowdhuri, RK Singh, K Kangsabanik… - Physical Review D, 2024 - APS
In this study, we look into binaries undergoing gravitational radiation during a hyperbolic
passage. Such hyperbolic events can be a credible source of gravitational waves in future …

Testing gravity with extreme-mass-ratio inspirals

A Cárdenas-Avendaño, CF Sopuerta - Recent Progress on Gravity Tests …, 2024 - Springer
Extreme-mass-ratio inspirals consist of binary systems of compact objects, with orders of
magnitude differences in their masses, in the regime where the dynamics are driven by …

Extreme mass ratio inspirals in galaxies with dark matter halos

N Dai, Y Gong, Y Zhao, T Jiang - Physical Review D, 2024 - APS
Using an analytic, static, and spherically symmetric metric for a Schwarzschild black hole
immersed in a dark matter (DM) halo with the Hernquist-type profile, we derive analytic …

Dynamical friction in dark matter spikes: Corrections to Chandrasekhar's formula

F Dosopoulou - Physical Review D, 2024 - APS
We consider the intermediate mass-ratio inspiral of a stellar-mass compact object with an
intermediate-mass black hole that is surrounded by a dark matter density spike. The …

Detectability of gas-rich E/IMRI's in LISA band: observable signature of transonic accretion flow

S Chatterjee, S Mondal, P Basu - Monthly Notices of the Royal …, 2023 - academic.oup.com
Real extreme/intermediate-mass ratio inspiral (E/IMRI) systems are likely to contain large
accretion discs which could be as massive as the central supermassive black hole …

Detecting dark matter halos with extreme mass-ratio inspirals

C Zhang, G Fu, N Dai - Journal of Cosmology and Astroparticle …, 2024 - iopscience.iop.org
Extreme mass ratio inspirals (EMRIs), where a small compact object inspirals into a
supermassive black hole, are excellent sources for the space-based laser interferometer …