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Extreme mass-ratio inspirals (EMRIs), namely binary systems composed of a massive black hole and a compact stellar-mass object, are anticipated to be among the gravitational wave (GW) sources detected by the Laser Interferometer Space…

宇宙学与河外天体物理 · 物理学 2025-02-23 Chang Liu , Danny Laghi , Nicola Tamanini

Space-based gravitational wave detectors like TianQin or LISA could observe extreme-mass-ratio-inspirals (EMRIs) at millihertz frequencies. The accurate identification of these EMRI signals from the data plays a crucial role in enabling…

广义相对论与量子宇宙学 · 物理学 2024-09-05 Chang-Qing Ye , Hui-Min Fan , Alejandro Torres-Orjuela , Jian-dong Zhang , Yi-Ming Hu

The gravitational wave signal from a compact object spiralling toward a massive black hole (MBH) is thought to be one of the most difficult sources to detect in the LISA data stream. Due to the large parameter space of possible signals and…

广义相对论与量子宇宙学 · 物理学 2009-06-25 Stanislav Babak , Jonathan R. Gair , Edward K. Porter

Future space-based laser interferometry experiments such as LISA are expected to detect $\cal O$(100--1000) stellar-mass compact objects (e.g., black holes, neutron stars) falling into massive black holes in the centers of galaxies, the…

宇宙学与河外天体物理 · 物理学 2020-11-25 Otto A. Hannuksela , Kenny C. Y. Ng , Tjonnie G. F. Li

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…

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), i.e. binary systems comprised by a compact stellar-mass object orbiting a massive black hole, are expected to be among the primary gravitational wave (GW) sources for the forthcoming LISA mission. The…

星系天体物理 · 物理学 2020-11-25 Matteo Bonetti , Alberto Sesana

In this article we consider prospects for detecting extreme mass ratio inspirals (EMRIs) using gravitational wave (GW) observations by a future space borne interferometric observatory eLISA. We start with a description of EMRI formation…

广义相对论与量子宇宙学 · 物理学 2021-04-07 Stanislav Babak , Jonathan R. Gair , Robert H. Cole

Extreme-mass-ratio inspirals (EMRIs), consisting of a massive black hole and a stellar compact object, are one of the most important sources for space-borne gravitational wave detectors like TianQin. Their population study can be used to…

高能天体物理现象 · 物理学 2025-05-08 Hui-Min Fan , Xiang-Yu Lyu , Jian-dong Zhang , Yi-Ming Hu , Rong-Jia Yang , Tai-Fu Feng

Extreme-Mass-Ratio Inspirals (EMRIs) are one of the main sources of gravitational waves expected in the low-frequency band, where space-based detectors like Laser Interferometer Space Antenna (LISA) will operate. The large number of…

广义相对论与量子宇宙学 · 物理学 2026-04-10 Pablo F. Muguruza , Carlos F. Sopuerta

The space based interferometer LISA will be capable of detecting the gravitational waves emitted by stellar mass black holes or neutron stars slowly inspiralling into the supermassive black holes found in the centre of most galaxies. The…

广义相对论与量子宇宙学 · 物理学 2017-09-14 Christopher J. Moore , Alvin J. K. Chua , Jonathan R. Gair

The extreme-mass-ratio inspirals (EMRIs) of stellar mass compact objects into massive black holes in the centres of galaxies are an important source of low-frequency gravitational waves for space-based detectors. We discuss the prospects…

广义相对论与量子宇宙学 · 物理学 2012-10-31 Jonathan R Gair , Edward K Porter

Extreme Mass Ratio Inspirals (EMRIs) are key sources for the future space-based gravitational wave detector LISA, and are considered promising probes of fundamental physics. Here, we present the first complete Bayesian analysis of EMRI…

The extreme mass ratio inspiral (EMRI), defined as a stellar-mass compact object inspiraling into a supermassive black hole (SMBH), has been widely argued to be a low-frequency gravitational wave (GW) source. EMRIs providing accurate…

高能天体物理现象 · 物理学 2020-01-08 Y. Y. Wang , F. Y. Wang , Y. C. Zou , Z. G. Dai

Supermassive black holes and their surrounding dense stellar environments nourish a variety of astrophysical phenomena. We focus on the distribution of stellar-mass black holes around the supermassive black hole and the consequent formation…

星系天体物理 · 物理学 2024-12-11 Barak Rom , Itai Linial , Karamveer Kaur , Re'em Sari

The planned Laser Interferometer Space Antenna (LISA) is expected to detect the inspiral and merger of massive black hole binaries (MBHBs) at z <~ 5 with signal-to-noise ratios (SNRs) of hundreds to thousands. Because of these high SNRs,…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Curt Cutler , Michele Vallisneri

In this work, we investigate detection rates and parameter estimation of strongly-lensed extreme mass-ratio inspirals (LEMRIs) in the context of the Laser Interferometer Space Antenna (LISA). Our results indicate that LEMRIs constitute a…

宇宙学与河外天体物理 · 物理学 2023-12-22 Martina Toscani , Ollie Burke , Chang Liu , Nour Bou Zamel , Nicola Tamanini , Federico Pozzoli

The gravitational wave (GW) signals from extreme mass-ratio inspirals (EMRIs), a key target for the Laser Interferometer Space Antenna (LISA), will be affected in the presence of dark matter (DM) halos. In this paper we explore whether the…

广义相对论与量子宇宙学 · 物理学 2026-01-14 Sara Gliorio , Emanuele Berti , Andrea Maselli , Nicholas Speeney

Extreme mass-ratio inspirals (EMRIs) are the most potential sources detectable by the Laser Interferometer Space Antenna (LISA). To analyze the influence of higher harmonics on parameter estimation for EMRIs efficiently, we use the waveform…

广义相对论与量子宇宙学 · 物理学 2023-08-31 Chao Zhang , Ning Dai , Dicong Liang

Extreme mass ratio inspirals (EMRIs) occur when stellar-mass compact objects begin a gravitational wave (GW) driven inspiral into massive black holes. EMRI waveforms can precisely map the surrounding spacetime, making them a key target for…

星系天体物理 · 物理学 2023-04-27 Ismail Qunbar , Nicholas C. Stone