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There has been remarkable progress in numerical relativity recently. This has led to the generation of gravitational waveform signals covering what has been traditionally termed the three phases of the coalescence of a compact binary - the…

广义相对论与量子宇宙学 · 物理学 2009-06-10 Benjamin Farr , Stephen Fairhurst , B. S. Sathyaprakash

An extreme mass ratio inspiral takes place when a compact stellar object is inspiraling into a supermassive black hole due to gravitational radiation reaction. Gravitational waves (GWs) from this system can be calculated using the Teukolsky…

广义相对论与量子宇宙学 · 物理学 2021-01-14 Viktor Skoupý , Georgios Lukes-Gerakopoulos

We study Extreme Mass Ratio Inspirals (EMRIs), during which a small body spirals into a supermassive black hole, in gravity theories with additional scalar fields. We first argue that no-hair theorems and the properties of known theories…

广义相对论与量子宇宙学 · 物理学 2022-03-14 Andrea Maselli , Nicola Franchini , Leonardo Gualtieri , Thomas P. Sotiriou

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 gravitational wave emission. The unique nature of…

广义相对论与量子宇宙学 · 物理学 2024-07-12 Alejandro Cárdenas-Avendaño , Carlos F. Sopuerta

Suppose a small compact object (black hole or neutron star) of mass $m$ orbits a large black hole of mass $M \gg m$. This system emits gravitational waves (GWs) that have a radiation-reaction effect on the particle's motion. EMRIs…

广义相对论与量子宇宙学 · 物理学 2011-02-15 Jonathan Thornburg

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…

广义相对论与量子宇宙学 · 物理学 2026-01-08 Tieguang Zi , Mostafizur Rahman , Shailesh Kumar

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 expressions for the orbital period and precession of…

广义相对论与量子宇宙学 · 物理学 2024-11-01 Ning Dai , Yungui Gong , Yang Zhao , Tong Jiang

Inspiral signals from binary compact objects (black holes and neutron stars) are primary targets of the ongoing searches by ground-based gravitational-wave interferometers (LIGO, Virgo, GEO-600 and TAMA-300). We present parameter-estimation…

Studies regarding extra-dimensions have been of great interest in modern theoretical physics, including their observational consequences from future gravitational wave (GW) observatories. In this direction, extreme-mass-ratio inspirals…

广义相对论与量子宇宙学 · 物理学 2025-07-17 Shailesh Kumar , Tieguang Zi , Arpan Bhattacharyya

Future mHz gravitational wave (GW) interferometers will precisely probe massive black hole environments, such as accretion discs, cold dark matter overdensities, and clouds of ultralight bosons, as long as we can accurately model the…

广义相对论与量子宇宙学 · 物理学 2025-12-15 Rodrigo Vicente , Theophanes K. Karydas , Gianfranco Bertone

Extreme mass ratio inspirals (EMRIs), the inspirals of compact objects into supermassive black holes, are important gravitational wave sources for the Laser Interferometer Space Antenna (LISA). We study the performance of various…

广义相对论与量子宇宙学 · 物理学 2013-07-31 Vijay Varma , Ryuichi Fujita , Ashok Choudhary , Bala R. Iyer

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…

广义相对论与量子宇宙学 · 物理学 2025-01-30 Francisco Duque , Shubham Kejriwal , Laura Sberna , Lorenzo Speri , Jonathan Gair

Given the multi-frequency nature of relativistic orbits, transient orbital resonances are expected to be ubiquitous during an extreme-mass-ratio inspiral (EMRI). At a resonance, the orbital dynamics is modified in a nontrivial way,…

广义相对论与量子宇宙学 · 物理学 2026-04-30 Edoardo Levati , Alejandro Cárdenas-Avendaño

Orbital resonances in extreme-mass-ratio inspirals (EMRIs) have been proven to be a key feature for accurate gravitational-wave template modeling. Decades of research have led to schemes that can not only model the adiabatic inspiral of…

广义相对论与量子宇宙学 · 物理学 2025-05-06 Edoardo Levati , Alejandro Cárdenas-Avendaño , Kyriakos Destounis , Paolo Pani

An Extreme Mass Ratio Inspiral (EMRI), which corresponds to a small compact object inspirals around a massive black hole in the center of a galaxy, is one of the most important sources for future space-borne gravitational-wave (GW)…

广义相对论与量子宇宙学 · 物理学 2025-09-25 Yi-Xiang Wei , Xian-Long Zhu , Jian-dong Zhang , Jianwei Mei

Next-generation gravitational wave detectors such as the Einstein Telescope and Cosmic Explorer will have increased sensitivity and observing volumes, enabling unprecedented precision in parameter estimation. However, this enhanced…

广义相对论与量子宇宙学 · 物理学 2024-05-16 Veome Kapil , Luca Reali , Roberto Cotesta , Emanuele Berti

Extreme mass ratio inspirals (EMRIs), as a core target for future space-based gravitational wave detection, offer crucial observational grounds for testing strong-field gravitational theories and classifying black holes through their…

广义相对论与量子宇宙学 · 物理学 2026-03-10 Xiuqin He , Zhaoyi Xu , Meirong Tang

How to calculate the gravitational waves (GWs) of Extreme-mass-ratio-inspirals (EMRIs) in a highly accurate and efficient way still keeps a challenge. In this paper, we present a so-called fully recalibrated waveforms for EMRIs with high…

广义相对论与量子宇宙学 · 物理学 2017-06-14 Ran Cheng , Wen-Biao Han

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…

高能天体物理现象 · 物理学 2018-10-03 Pau Amaro-Seoane

It is known that massive black holes (MBHs) of $10^{5-7}\,M_\odot$ could capture small compact objects to form extreme-mass-ratio inspirals (EMRIs). Such systems emit gravitational waves (GWs) in the band of the Laser Interferometer Space…

广义相对论与量子宇宙学 · 物理学 2019-03-29 Wen-Biao Han , Xian Chen