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Related papers: Extreme mass-ratio gravitational-wave sources: Mas…

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Extreme mass-ratio inspirals (EMRIs), consisting of a secondary (stellar mass) black hole (BH) orbiting around a supermassive BH, are one of the primary targets for future spaceborne gravitational wave (GW) detectors. The spin of the…

High Energy Astrophysical Phenomena · Physics 2025-05-23 Qiuxin Cui , Wen-Biao Han , Zhen Pan

The field of gravitational waves is rapidly progressing due to the noticeable advancements in the sensitivity of gravitational-wave detectors that has enabled the detection prospects of binary black hole mergers. Extreme mass ratio inspiral…

General Relativity and Quantum Cosmology · Physics 2026-03-05 Mostafizur Rahman , Shailesh Kumar , Arpan Bhattacharyya

The horizon of a classical black hole (BH), functioning as a one-way membrane, plays a vital role in the dynamic evolution of binary BHs, capable of absorbing fluxes entirely. Tidal heating, stemming from this phenomenon, exerts a notable…

General Relativity and Quantum Cosmology · Physics 2024-09-04 Tieguang Zi , Chang-Qing Ye , Peng-Cheng Li

The non-linear gravitational wave (GW) memory effect is a distinct prediction in general relativity. While the effect has been well studied for comparable mass binaries, it has mostly been overlooked for intermediate mass ratio inspirals…

General Relativity and Quantum Cosmology · Physics 2023-07-26 Tousif Islam , Scott E. Field , Gaurav Khanna , Niels Warburton

Wide, highly eccentric ($e>0.9$) compact binaries can naturally arise as progenitors of gravitational wave (GW) mergers. These systems are expected to have a significant population in the mHz band (e.g., $\sim 3-45$ detectable stellar-mass…

High Energy Astrophysical Phenomena · Physics 2026-05-28 Zeyuan Xuan , Smadar Naoz , Alvin K. Y. Li , Bence Kocsis , Erik Petigura , Alan M. Knee , Jess McIver , Kyle Kremer , Will M. Farr

Extreme Mass Ratio Inspirals (EMRIs) are among the key targe sources for the space-based gravitational wave (GW) detectors. The waveforms of the EMRIs are highly sensitive to the types of the central supermassive black hole (SBH) and can…

General Relativity and Quantum Cosmology · Physics 2026-04-28 Kun Meng , Shao-Jun Zhang , Nan Yang

Supermassive black holes at the centers of galaxies occasionally disrupt stars or consume stellar-mass black holes (BHs) that wander too close, producing observable electromagnetic or gravitational wave signals. We examine how mass…

High Energy Astrophysical Phenomena · Physics 2025-09-10 Barak Rom , Re'em Sari

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…

General Relativity and Quantum Cosmology · Physics 2025-05-05 Andrew L. Miller

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…

High Energy Astrophysical Phenomena · Physics 2023-09-20 Smadar Naoz , Zoltan Haiman

Massive black hole (MBH) binaries in galactic nuclei are one of the leading sources of $\sim$ mHz gravitational waves (GWs) for future missions such as $\rm{\textit{LISA}}$. However, the poor sky localization of GW interferometers will make…

High Energy Astrophysical Phenomena · Physics 2024-10-18 Omri Reved , Lazar Friedland , Nicholas C. Stone

Mergers of binary black holes on eccentric orbits are among the targets for second-generation ground-based gravitational-wave detectors. These sources may commonly form in galactic nuclei due to gravitational-wave emission during close…

High Energy Astrophysical Phenomena · Physics 2018-11-06 László Gondán , Bence Kocsis , Péter Raffai , Zsolt Frei

During its inspiral stage, a binary black hole (BBH) produces characteristic gravitational wave (GW) signals. The waveform of the GW signals can be described by the physical parameters of BBH, such as the masses of the black holes and the…

General Relativity and Quantum Cosmology · Physics 2024-09-04 Han Gil Choi , Tao Yang , Hyung Mok Lee

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…

Cosmology and Nongalactic Astrophysics · Physics 2024-07-08 Pau Amaro Seoane , Yiren Lin , Kostas Tzanavaris

The inspirals of stellar-mass mass compact objects into massive black holes in the centres of galaxies are one of the most important sources of gravitational radiation for space-based detectors like LISA or eLISA. These extreme-mass-ratio…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Pau Amaro-Seoane , Jonathan R. Gair , Adam Pound , Scott A. Hughes , Carlos F. Sopuerta

Future space-borne gravitational-wave detectors will observe the gravitational waves in the milli-Hz. Extreme-mass-ratio inspirals with central supermassive black holes are very important sources that could provide the information of the…

General Relativity and Quantum Cosmology · Physics 2021-08-31 Yu-Peng Zhang , Yan-Bo Zeng , Yong-Qiang Wang , Shao-Wen Wei , Pau Amaro Seoane , Yu-Xiao Liu

This work elaborates on a detailed analysis of the novel characteristics of gravitational waves (GWs) generated by extreme mass ratio inspirals (EMRIs) within the framework of modified gravity (MOG). Our study begins by exploring the…

General Relativity and Quantum Cosmology · Physics 2024-08-20 Xiongying Qiao , Zhong-Wu Xia , Qiyuan Pan , Hong Guo , Wei-Liang Qian , Jiliang Jing

The population study of stellar-mass black hole (sBH) binaries with ground-based gravitational wave detection has achieved tremendous success in recent years. Future observation of extreme mass-ratio inspirals will similarly require proper…

General Relativity and Quantum Cosmology · Physics 2025-09-19 Houyi Sun , Ya-Ping Li , Zhen Pan , Huan Yang

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…

General Relativity and Quantum Cosmology · Physics 2014-09-11 Yan Wang , Yu Shang , Stanislav Babak

Supermassive black hole binaries (SMBHBs) produced in galaxy mergers are thought to complete their coalescence, below separations of r_GW=10^{-3} (M_BH/10^8 M_sun)^{3/4} pc, as their orbit decays due to the emission of gravitational waves…

Astrophysics · Physics 2009-04-08 Zoltán Haiman , Bence Kocsis , Kristen Menou

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…

Cosmology and Nongalactic Astrophysics · Physics 2025-06-24 Lingyuan Ji , Liang Dai