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The description of extreme-mass-ratio binary systems in the inspiral phase is a challenging problem in gravitational wave physics with significant relevance for the space interferometer LISA. The main difficulty lies in the evaluation of…

广义相对论与量子宇宙学 · 物理学 2009-11-11 Carlos F. Sopuerta , Pablo Laguna

One of the key astrophysical sources for the Laser Interferometer Space Antenna (LISA) are the inspirals of stellar-origin compact objects into massive black holes in the centres of galaxies. These extreme-mass-ratio inspirals (EMRIs) have…

Extreme mass ratio inspirals (EMRIs) occur when a compact object orbits a much larger one, like a solar-mass black hole around a supermassive black hole. The orbit has 3 frequencies which evolve through the inspiral. If the orbital radial…

广义相对论与量子宇宙学 · 物理学 2017-06-16 C. P. L. Berry , R. H. Cole , P. Cañizares , J. R. Gair

The inspiral of a ``small'' ($\mu \sim 1-100 M_\odot$) compact body into a ``large'' ($M \sim 10^{5-7} M_\odot$) black hole is a key source of gravitational radiation for the space-based gravitational-wave observatory LISA. The waves from…

广义相对论与量子宇宙学 · 物理学 2009-11-07 Scott A. Hughes

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…

广义相对论与量子宇宙学 · 物理学 2026-04-28 Kun Meng , Shao-Jun Zhang , Nan Yang

The fundamental process of detecting and examining the polarization modes of gravitational waves plays a pivotal role in enhancing our grasp on the precise mechanisms behind their generation. A thorough investigation is essential for…

广义相对论与量子宇宙学 · 物理学 2024-10-16 Shailesh Kumar , Rishabh Kumar Singh , Abhishek Chowdhuri , Arpan Bhattacharyya

Extreme mass-ratio inspirals (EMRIs) are among the key targets for future space-based gravitational wave detectors. The gravitational waveforms emitted by EMRIs are highly sensitive to the orbital dynamics of the small compact object, which…

广义相对论与量子宇宙学 · 物理学 2025-10-08 Soroush Zare , Tao Zhu , Luis M. Nieto , Shuo Lu , Hassan Hassanabadi

Periodic orbits exhibiting zoom-whirl behavior have become attractive topics for studying particle dynamics and gravitational wave emission in extreme-mass-ratio inspirals (EMRIs). This study systematically investigates periodic orbits…

广义相对论与量子宇宙学 · 物理学 2026-02-05 Guo-He Li , Chen-Kai Qiao , Jun Tao

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

The gravitational-wave signals emitted by Extreme-Mass-Ratio Inspirals will be hidden in the instrumental LISA noise and the foreground noise produced by galactic binaries in the LISA band. Then, we need accurate gravitational-wave…

广义相对论与量子宇宙学 · 物理学 2010-10-01 Priscilla Canizares , Carlos F. Sopuerta

Studies regarding extra-dimensions have been of great interest in modern theoretical physics, including their observational consequences from future gravitational wave (GW) observatories. In this direction, extreme-mass-ratio inspirals…

广义相对论与量子宇宙学 · 物理学 2025-07-17 Shailesh Kumar , Tieguang Zi , Arpan Bhattacharyya

Gravitational waves provide a unique probe of the strong-field regime of gravity, offering access to physics beyond the classical black hole paradigm. We explore how space-based observations of extreme-mass-ratio inspirals (EMRIs) by the…

高能物理 - 理论 · 物理学 2026-04-10 Pablo F. Muguruza , Carlos F. Sopuerta

It is not currently clear how important it will be to include conservative self-force (SF) corrections in the models for extreme-mass-ratio inspiral (EMRI) waveforms that will be used to detect such signals in LISA (Laser Interferometer…

广义相对论与量子宇宙学 · 物理学 2010-09-30 E. A. Huerta , Jonathan R Gair

Extreme mass ratio inspiral (EMRI) events are vulnerable to perturbations by the stellar background, which can abort them prematurely by deflecting EMRI orbits to plunging ones that fall directly into the massive black hole (MBH), or to…

星系天体物理 · 物理学 2017-06-28 Tal Alexander

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

We compute the gravitational wave signal from eccentric extreme-mass-ratio inspirals (EMRIs) embedded within beyond-vacuum environments, where the secondary object carries a scalar charge and evolves in the presence of both an accretion…

广义相对论与量子宇宙学 · 物理学 2026-03-04 Tieguang Zi , Chang-Qing Ye

Primordial black hole (PBH), which can be naturally produced in the early universe, remains a promising dark matter candidate . It can merge with a supermassive black hole (SMBH) in the center of a galaxy and generate gravitational wave…

宇宙学与河外天体物理 · 物理学 2019-01-09 Huai-Ke Guo , Jing Shu , Yue Zhao

We consider the motion of a particle in the geometry of a Schwarzschild-like black hole embedded in a dark matter (DM) halo with Dehnen type density profile and calculate the orbital periods along with the evolution of the semi-latus rectum…

广义相对论与量子宇宙学 · 物理学 2026-02-10 Amjad Ashoorioon , Roberto Casadio , Khadije Jafarzade , Mohammad B. Jahani Poshteh , Orlando Luongo

Future space-borne interferometers will be able to detect gravitational waves at $10^{-3}$ to $10^{-1}$ Hz. At this band extreme-mass-ratio inspirals (EMRIs) can be promising gravitational wave sources. In this paper, we investigate…

广义相对论与量子宇宙学 · 物理学 2019-10-30 Shuo Xin , Wen-Biao Han , Shu-Cheng Yang

Future mHz gravitational wave (GW) interferometers will precisely probe massive black hole environments, such as accretion discs, cold dark matter overdensities, and clouds of ultralight bosons, as long as we can accurately model the…

广义相对论与量子宇宙学 · 物理学 2025-12-15 Rodrigo Vicente , Theophanes K. Karydas , Gianfranco Bertone