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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

Upcoming space-based gravitational wave detectors such as LISA, the Laser Interferometer Space Antenna, will be sensitive to extreme- and intermediate-mass-ratio inspirals (EMRIs and IMRIs). These binaries are comprised of a supermassive…

In this thesis we consider the data analysis problem of detecting gravitational waves emitted by inspiraling binary systems. Detection of gravitational waves will open a new window on the Universe enabling direct detection of systems such…

广义相对论与量子宇宙学 · 物理学 2010-02-10 Gareth Jones

The gravitational capture of a stellar-mass object by a supermassive black hole represents a unique probe of warped spacetime. The small object, typically a stellar-mass black hole, describes a very large number of cycles before crossing…

宇宙学与河外天体物理 · 物理学 2024-07-08 Pau Amaro Seoane , Yiren Lin , Kostas Tzanavaris

Binary Systems are the most studied sources of gravitational waves. The mechanisms of emission and the behavior of the orbital parameters are well known and can be written in analytic form in several cases. Besides, the strongest indication…

宇宙学与河外天体物理 · 物理学 2015-04-24 E. F. D. Evangelista , J. C. N. de Araujo

The gravitational capture of a stellar-mass compact object (CO) by a supermassive black hole is a unique probe of gravity in the strong field regime. Because of the large mass ratio, we call these sources extreme-mass ratio inspirals…

广义相对论与量子宇宙学 · 物理学 2023-04-19 Pau Amaro-Seoane

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…

广义相对论与量子宇宙学 · 物理学 2019-09-24 Béatrice Bonga , Huan Yang , Scott A. Hughes

Gravitational waves from inspiraling sub-solar mass compact objects would provide almost definitive evidence for the existence of primordial black holes. In this chapter, we explain why these exotic objects are interesting candidates for…

广义相对论与量子宇宙学 · 物理学 2025-05-05 Andrew L. Miller

We produce the gravitational waveforms for the extreme mass ratio inspiral systems (EMRIs) of binary stars moving around central supermassive black hole (SBH), or called B-EMRIs. We calculate the external orbits of the binary stars via the…

广义相对论与量子宇宙学 · 物理学 2026-03-11 Kun Meng , Hongsheng Zhang , Xi-Long Fan , Yuan Yong , Fei Du

Mini-Extreme-Mass-Ratio Inspirals (mini-EMRIs), comprising a sub-solar exotic compact object (such as a primordial black hole or boson star) orbiting a much heavier stellar-origin or exotic compact object, represent key targets for…

广义相对论与量子宇宙学 · 物理学 2025-12-29 Zi-Xuan Wang , Xing-Yu Chen , Ju Chen , Gong Cheng , Huai-Ke Guo , Andrew L. Miller

Extreme mass ratio inspirals (EMRIs) are anticipated to be primary gravitational wave sources for LISA (Laser Interferometer Space Antenna). They form in dense nuclear clusters when a compact object (CO) is captured by the central massive…

高能天体物理现象 · 物理学 2025-03-04 Davide Mancieri , Luca Broggi , Matteo Bonetti , Alberto Sesana

In the context of the future Laser Interferometer Space Antenna (LISA) mission, galactic binary systems of white dwarfs and neutron stars will represent the dominant source of Gravitational Waves (GWs) within the…

广义相对论与量子宇宙学 · 物理学 2022-11-28 Adrien Bourgoin , Christophe Le Poncin-Lafitte , Stéphane Mathis , Marie-Christine Angonin

The Laser Interferometer Space Antenna (LISA) will explore the source-rich milli-Hertz band of the gravitational wave spectrum. In contrast to ground based detectors, where typical signals are short-lived and discrete, LISA signals are…

广义相对论与量子宇宙学 · 物理学 2018-08-09 Travis Robson , Neil Cornish

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

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 $(0.03 - 0.1) {\rm mHz} \lesssim f \lesssim 0.1 {\rm Hz}$. This is expected to be an…

广义相对论与量子宇宙学 · 物理学 2009-11-11 Scott A. Hughes

The upcoming Laser Interferometer Space Antenna (LISA) will detect up to thousands of extreme-mass-ratio inspirals (EMRIs). These sources will spend $\sim 10^5$ cycles in band, and are therefore sensitive to tiny changes in the…

广义相对论与量子宇宙学 · 物理学 2026-02-13 Shubham Kejriwal , Enrico Barausse , Alvin J. K. Chua

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…

广义相对论与量子宇宙学 · 物理学 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…

高能天体物理现象 · 物理学 2018-10-02 Xian Chen , Wen-Biao Han

The future space-borne Laser Interferometer Space Antenna (LISA) is expected to detect gravitational waves (GW) from Extreme Mass Ratio Inspiral (EMRI) binaries which may live in nontrivial environments such as accretion disks. In this…

广义相对论与量子宇宙学 · 物理学 2024-06-25 Marco Immanuel B. Rivera , Reinabelle C. Reyes

Extreme mass-ratio inspirals (EMRIs) are binary systems where a compact object slowly inspirals into its much larger compact partner. Since we anticipate such systems to exist within and be dynamically influenced by the galactic center…

广义相对论与量子宇宙学 · 物理学 2025-08-12 Makana Silva , Harrison G. Blake-Goszyk , Christopher M. Hirata