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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…

广义相对论与量子宇宙学 · 物理学 2025-05-26 Tieguang Zi , Chao Zhang

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

Extreme mass ratio inspirals (EMRIs) take place when a stellar-mass black hole (BH) merges with a supermassive black hole (SMBH). The gravitational wave emission from such an event is expected to be detectable by the future Laser…

高能天体物理现象 · 物理学 2023-09-20 Smadar Naoz , Zoltan Haiman

We present {bhpwave}: a new Python-based, open-source tool for generating the gravitational waveforms of stellar-mass compact objects undergoing quasi-circular inspirals into rotating massive black holes. These binaries, known as…

广义相对论与量子宇宙学 · 物理学 2024-03-08 Zachary Nasipak

Even if globally neutral, in various scenarios compact objects can have a nonvanishing dipole moment. Examples include neutron stars with magnetic dipoles, black-hole microstates in the string-theory fuzzball scenario, and classical black…

广义相对论与量子宇宙学 · 物理学 2023-10-13 Jacopo Lestingi , Enrico Cannizzaro , Paolo Pani

There is strong observational evidence that almost every large galaxy has a supermassive black hole at its center. It is of fundamental importance to know whether such black holes are described by the standard Kerr solution in General…

广义相对论与量子宇宙学 · 物理学 2024-06-14 Eugeny Babichev , Christos Charmousis , Daniela D. Doneva , Galin N. Gyulchev , Stoytcho S. Yazadjiev

Extreme mass ratio inspirals (EMRIs) (capture and inspiral of a compact stellar mass object into a Massive Black Hole (MBH)) are among the most interesting objects for the gravitational wave astronomy. It is a very challenging task to…

广义相对论与量子宇宙学 · 物理学 2014-09-11 Yan Wang , Yu Shang , Stanislav Babak

In this work we analyze some judiciously chosen solutions of Kerr Black Holes with Scalar Hair (KBHsSH) of special interest for Gravitational Wave (GW) events originated from Extreme Mass Ratio Inspirals (EMRIs). Because of the off-center…

广义相对论与量子宇宙学 · 物理学 2022-02-21 Lucas G. Collodel , Daniela D. Doneva , Stoytcho S. Yazadjiev

Extreme mass ratio inspirals (EMRIs) are compact binary systems characterized by a mass-ratio $q=m/M$ in the range $~10^{-9}-10^{-4}$ and represent primary gravitational wave (GW) sources for the forthcoming Laser Interferometer Space…

We study the influence of the loop quantum gravity (LQG) holonomy-correction parameter $\xi$ on black hole horizon structure, timelike geodesic motion, and gravitational wave emission in two rotating LQG-inspired black hole spacetimes,…

广义相对论与量子宇宙学 · 物理学 2026-04-24 Yang Yang , Yu-Xuan Bai , Yong-Zhuang Li , Yu Han

In order to derive the precise gravitational waveforms for extreme mass ratio inspirals (EMRI), we develop a formulation for the second order metric perturbations produced by a point particle moving in the Schwarzschild spacetime. The…

广义相对论与量子宇宙学 · 物理学 2008-12-25 Carlos O. Lousto , Hiroyuki Nakano

Measurements of gravitational waves from the inspiral of a stellar-mass compact object into a massive black hole are unique probes to test General Relativity (GR) and MBH properties, as well as the stellar distribution about these holes in…

宇宙学与河外天体物理 · 物理学 2015-05-30 Pau Amaro-Seoane , Patrick Brem , Jorge Cuadra , Philip J. Armitage

Extreme Mass Ratio Inspirals (EMRIs) constitute a prime target for future space-based gravitational-wave observatories such as LISA. In this paper, we analytically investigate the long-term phase shift (dephasing) in the gravitational wave…

广义相对论与量子宇宙学 · 物理学 2026-03-17 Jingxu Wu , Liangyu Luo , Jie Shi

I review the status of research, conducted by a variety of independent groups, aimed at the eventual observation of Extreme Mass Ratio Inspirals (EMRIs) with gravitational wave detectors. EMRIs are binary systems in which one of the objects…

广义相对论与量子宇宙学 · 物理学 2014-11-17 Steve Drasco

The upcoming gravitational wave (GW) observatory LISA will measure the parameters of sources like extreme-mass-ratio inspirals (EMRIs) to exquisite precision. These measurements will also be sensitive to perturbations to the vacuum,…

广义相对论与量子宇宙学 · 物理学 2025-06-18 Shubham Kejriwal , Francisco Duque , Alvin J. K. Chua , Jonathan Gair

We investigate different treatments of dark matter (DM) distributions surrounding extreme mass ratio inspirals (EMRIs) to assess their impact on orbital evolution and gravitational wave emission. Density profiles derived from the mass…

广义相对论与量子宇宙学 · 物理学 2026-02-13 Yang Zhao , Yungui Gong

We show that the loudest extreme mass-ratio inspirals (EMRIs) detected by the future space-based gravitational wave detector LISA can be used as dark standard sirens, statistically matching their sky localisation region with mock galaxy…

宇宙学与河外天体物理 · 物理学 2021-09-30 Danny Laghi

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

Gravitational-wave observations of extreme mass ratio inspirals (EMRIs) offer the opportunity to probe the environments of active galactic nuclei (AGN) through the torques that accretion disks induce on the binary. Within a Bayesian…

广义相对论与量子宇宙学 · 物理学 2023-08-15 Lorenzo Speri , Andrea Antonelli , Laura Sberna , Stanislav Babak , Enrico Barausse , Jonathan R. Gair , Michael L. Katz

The equatorial symmetry of the Kerr black hole is generically broken in models of quantum gravity. Nevertheless, most phenomenological models start from the assumption of equatorial symmetry, and little attention has been given to the…

广义相对论与量子宇宙学 · 物理学 2022-10-05 Kwinten Fransen , Daniel R. Mayerson