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Scientific analysis for the gravitational-wave detector LISA will require theoretical waveforms from extreme-mass-ratio inspirals (EMRIs) that extensively cover all possible orbital and spin configurations around astrophysical Kerr black…

广义相对论与量子宇宙学 · 物理学 2022-06-22 Soichiro Isoyama , Ryuichi Fujita , Alvin J. K. Chua , Hiroyuki Nakano , Adam Pound , Norichika Sago

Gravitational wave observations of the inspiral of stellar-mass compact objects into massive black holes (MBHs), extreme mass ratio inspirals (EMRIs), enable precision measurements of parameters such as the MBH mass and spin. The Laser…

高能天体物理现象 · 物理学 2024-05-09 Christian E. A. Chapman-Bird , Christopher P. L. Berry , Graham Woan

The detection of a stochastic background of gravitational waves could significantly impact our understanding of the physical processes that shaped the early Universe. The challenge lies in separating the cosmological signal from other…

广义相对论与量子宇宙学 · 物理学 2014-11-20 Matthew R. Adams , Neil J. Cornish

Gravitational wave detectors in space, particularly the LISA project, can study a rich variety of astronomical systems whose gravitational radiation is not detectable from the ground, because it is emitted in the low-frequency gravitational…

广义相对论与量子宇宙学 · 物理学 2007-05-23 B. F. Schutz

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…

宇宙学与河外天体物理 · 物理学 2025-06-24 Lingyuan Ji , Liang Dai

Extreme mass ratio inspirals (EMRIs), where a small compact object inspiralls onto a supermassive black hole, are excellent sources for the space-based laser interferometer gravitational wave (GW) detectors. The presence of dark matter…

广义相对论与量子宇宙学 · 物理学 2024-01-10 Chao Zhang , Guoyang Fu , Ning Dai

The planned Laser Interferometer Space Antenna (LISA) is expected to detect gravitational wave signals from ~100 extreme-mass-ratio inspirals (EMRIs) of stellar-mass compact objects into massive black holes. The long duration and large…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Jonathan R Gair , Ilya Mandel , Linqing Wen

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

Extreme mass-ratio inspirals, a target source for the space-based gravitational wave detector LISA, are a sensitive probe of fundamental scalar fields coupled to gravity. We assess the capability of LISA to detect whether the secondary…

广义相对论与量子宇宙学 · 物理学 2024-01-19 Matteo Della Rocca , Susanna Barsanti , Leonardo Gualtieri , Andrea Maselli

Recent observations discovered that some repeating fast radio bursts (FRBs) show a large value and complex variations of Faraday rotation measures (RMs). The binary systems containing a supermassive black hole (SMBH) and a neutron star (NS)…

高能天体物理现象 · 物理学 2023-09-19 Rui-Nan Li , Zhen-Yin Zhao , Zhifu Gao , F. Y. Wang

In gravitational-wave astronomy, extreme-mass-ratio-inspiral (EMRI) sources for the upcoming LISA observatory have the potential to serve as high-precision probes of astrophysical environments in galactic nuclei, and of potential deviations…

广义相对论与量子宇宙学 · 物理学 2024-10-14 Shubham Kejriwal , Lorenzo Speri , Alvin J. K. Chua

Detecting stochastic background radiation of cosmological origin is an exciting possibility for current and future gravitational-wave (GW) detectors. However, distinguishing it from other stochastic processes, such as instrumental noise and…

广义相对论与量子宇宙学 · 物理学 2023-04-28 Quentin Baghi , Nikolaos Karnesis , Jean-Baptiste Bayle , Marc Besançon , Henri Inchauspé

LISA is a planned space-based gravitational-wave (GW) detector that would be sensitive to waves from low-frequency sources, in the band of roughly (0.03 - 0.1) mHz < f < 0.1 Hz. This is expected to be an extremely rich chunk of the GW…

广义相对论与量子宇宙学 · 物理学 2007-11-02 Scott A. Hughes

One of the important targets for the future space-based gravitational wave observatory LISA is extreme mass ratio inspirals (EMRIs), where long and accurate waveform modeling is necessary for detection and characterization. Modeling EMRI…

广义相对论与量子宇宙学 · 物理学 2023-10-11 David Bronicki , Alejandro Cárdenas-Avendaño , Leo C. Stein

Extreme mass ratio in-spirals (EMRIs) are candidate events for gravitational wave detection in the millihertz range (by detectors like LISA and eLISA). These events involve a stellar-mass black hole, or a similar compact object, descending…

广义相对论与量子宇宙学 · 物理学 2021-04-19 Deyan P. Mihaylov , Jonathan Gair

[abridged] The detection of gravitational waves from extreme-mass-ratio (EMRI) binaries, comprising a stellar-mass compact object orbiting around a massive black hole, is one of the main targets for low-frequency gravitational-wave…

广义相对论与量子宇宙学 · 物理学 2012-08-09 Priscilla Canizares , Jonathan R. Gair , Carlos F. Sopuerta

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

We study gravitational waves from a stellar-mass binary orbiting a spinning supermassive black hole, a system referred to as a binary extreme mass ratio inspiral (b-EMRI). We use Dixon's formalism to describe the stellar-mass binary as a…

广义相对论与量子宇宙学 · 物理学 2025-06-27 João S. Santos , Vitor Cardoso , José Natário , Maarten van de Meent

Extreme mass-ratio inspirals (EMRIs) are among the most powerful probes of strong-field gravity and of the environments surrounding supermassive compact objects. Motivated by the expected presence of dark matter near galactic centers, we…

广义相对论与量子宇宙学 · 物理学 2026-02-24 Mustapha Azreg-Aïnou , Mubasher Jamil , Emmanuel N. Saridakis

One of the primary research aims of the Laser Interferometer Space Antenna (LISA) mission is to comprehensively map the Kerr spacetime, a fundamental pursuit in the realm of general relativity. To achieve this goal, it is essential to…

广义相对论与量子宇宙学 · 物理学 2024-10-14 Shailesh Kumar