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Related papers: Simulations of Extreme-Mass-Ratio Inspirals Using …

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We compute the gravitational wave signal from eccentric extreme-mass-ratio inspirals (EMRIs) embedded within beyond-vacuum environments, where the secondary object carries a scalar charge and evolves in the presence of both an accretion…

General Relativity and Quantum Cosmology · Physics 2026-03-04 Tieguang Zi , Chang-Qing Ye

A stellar-mass compact object spiraling into a supermassive black hole, an extreme-mass-ratio inspiral (EMRI), is one of the targets of future gravitational-wave detectors and it offers a unique opportunity to test General Relativity (GR)…

General Relativity and Quantum Cosmology · Physics 2012-08-07 Nicolas Yunes , Paolo Pani , Vitor Cardoso

The future space-based gravitational wave observatory, the Laser Interferometer Space Antenna, is expected to observe between 1-1000s extreme mass-ratio inspirals (EMRIs) per year. Due to the simultaneous presence of other gravitational…

General Relativity and Quantum Cosmology · Physics 2025-12-30 Sviatoslav Khukhlaev , Stanislav Babak

Future space-borne interferometers will be able to detect gravitational waves at $10^{-3}$ to $10^{-1}$ Hz. At this band extreme-mass-ratio inspirals (EMRIs) can be promising gravitational wave sources. In this paper, we investigate…

General Relativity and Quantum Cosmology · Physics 2019-10-30 Shuo Xin , Wen-Biao Han , Shu-Cheng Yang

The measurement of multipole moments of astrophysical objects through gravitational wave (GW) observations provides a novel way to distinguish black holes from other astrophysical objects. This paper studies the gravitational wave radiation…

General Relativity and Quantum Cosmology · Physics 2023-01-10 Mostafizur Rahman , Arpan Bhattacharyya

Extreme-mass-ratio inspiral (EMRI) is an important gravitational-wave (GW) source and it normally consists of one stellar-mass black hole (BH) whirling closely around a supermassive black hole (SMBH). In this Letter, we demonstrate that the…

High Energy Astrophysical Phenomena · Physics 2018-10-02 Xian Chen , Wen-Biao Han

We describe a new class of resonances for extreme mass-ratio inspirals (EMRIs): tidal resonances, induced by the tidal field of nearby stars or stellar-mass black holes. A tidal resonance can be viewed as a general relativistic extension of…

General Relativity and Quantum Cosmology · Physics 2019-09-24 Béatrice Bonga , Huan Yang , Scott A. Hughes

Extreme mass ratio inspirals (EMRIs) are among the primary targets for the Laser Interferometer Space Antenna (LISA). The extreme mass ratios of these systems result in relatively weak GW signals, that can be individually resolved only for…

Astrophysics of Galaxies · Physics 2023-02-15 Federico Pozzoli , Stanislav Babak , Alberto Sesana , Matteo Bonetti , Nikolaos Karnesis

We examine extreme mass-ratio inspirals (EMRIs) as probes of beyond-vacuum general relativistic effects, accounting for both astrophysical environments and scalar Gauss-Bonnet (sGB) gravity. In beyond-vacuum scenarios, the evolution of an…

General Relativity and Quantum Cosmology · Physics 2026-01-08 Tieguang Zi , Mostafizur Rahman , Shailesh Kumar

Inspirals of stellar-mass compact objects into $\sim 10^6 M_{\odot}$ black holes are especially interesting sources of gravitational waves for LISA. We investigate whether the emitted waveforms can be used to strongly constrain the geometry…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Leor Barack , Curt Cutler

Here, we explore the effect of the cloud of strings (CoS) on the gravitational waveforms of extreme mass ratio inspirals (EMRIs). The EMRI system consists of a supermassive black hole (BH) and a compact stellar mass object moving around it.…

General Relativity and Quantum Cosmology · Physics 2025-12-16 Mirzabek Alloqulov , Ahmadjon Abdujabbarov , Bobomurat Ahmedov , Chengxun Yuan

The detection of a gravitational capture of a stellar-mass compact object by a massive black hole (MBH) will allow us to test gravity in the strong regime. These sources form via two-body relaxation, by exchanging energy and angular…

High Energy Astrophysical Phenomena · Physics 2018-10-03 Pau Amaro-Seoane

Extreme-mass-ratio inspirals (EMRIs) are among the most promising sources for future space-based gravitational-wave (GW) detectors, such as LISA. To fully leverage the scientific potential, the GW templates required for parameter estimation…

General Relativity and Quantum Cosmology · Physics 2026-03-17 Viktor Skoupý

We investigate the detectability and waveform systematics of sub-solar mass intermediate mass-ratio inspirals (SSM-IMRIs), characterized by mass ratios $q \sim 10^2-10^4$. Using the black hole perturbation theory surrogate model…

General Relativity and Quantum Cosmology · Physics 2025-11-18 Devesh Giri , Bhooshan Gadre

Extreme-mass-ratio inspirals (EMRIs) are one of the primary targets for the recently adopted millihertz gravitational-wave (GW) observatory LISA. Some previous studies have argued that a fraction of all EMRIs form in matter-rich…

High Energy Astrophysical Phenomena · Physics 2024-07-02 Shubham Kejriwal , Vojtech Witzany , Michal Zajacek , Dheeraj R. Pasham , Alvin J. K. Chua

Extreme Mass Ratio Inspirals (EMRIs) are one of the key sources for future space-based gravitational wave interferometers. Measurements of EMRI gravitational waves are expected to determine the characteristics of their sources with…

Understanding the orbits of spinning bodies in curved spacetime is important for modeling binary black hole systems with small mass ratios. At zeroth order in mass ratio, the smaller body moves on a geodesic. Post-geodesic effects are…

General Relativity and Quantum Cosmology · Physics 2025-09-05 Lisa V. Drummond , Philip Lynch , Alexandra G. Hanselman , Devin R. Becker , Scott A. Hughes

The future space-borne gravitational wave detector, Laser Interferometer Space Antenna (LISA), has the potential of detecting the fundamental fields, such as the charge and mass of ultra-light scalar field. In this paper we study the effect…

General Relativity and Quantum Cosmology · Physics 2025-05-26 Tieguang Zi , Chao Zhang

Detecting individual extreme-mass-ratio inspirals (EMRIs) is a major science goal of future space-based gravitational wave observatories such as Laser Interferometer Space Antenna (LISA) and TianQin. However, matched-filtering can be…

Cosmology and Nongalactic Astrophysics · Physics 2025-06-24 Lingyuan Ji , Liang Dai

Compact remnants on orbits with peri-apses close to the Schwarzschild radius of a massive black hole (MBH) lose orbital energy by emitting gravitational waves (GWs) and spiral in. Scattering with other stars allows successful inspiral of…

Astrophysics · Physics 2009-11-11 Clovis Hopman
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