English
Related papers

Related papers: Applying the effective-source approach to frequenc…

200 papers

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…

General Relativity and Quantum Cosmology · Physics 2012-10-31 Jonathan R Gair , Edward K Porter

Suppose a small compact object (black hole or neutron star) of mass $m$ orbits a large black hole of mass $M \gg m$. This system emits gravitational waves (GWs) that have a radiation-reaction effect on the particle's motion. EMRIs…

General Relativity and Quantum Cosmology · Physics 2011-02-15 Jonathan Thornburg

The gravitational-wave (GW) inspirals of stellar-mass compact objects onto a supermassive black hole (MBH), are some of the most promising GW sources detectable by next-generation space-born GW-detectors. The rates and characteristics of…

Astrophysics of Galaxies · Physics 2021-01-05 Yael Raveh , Hagai B. Perets

We present a systematic framework for computing frequency-domain gravitational waveforms from relativistic binary scattering in different asymptotic regimes. The method yields a controlled series expansion that can in principle be extended…

High Energy Physics - Theory · Physics 2025-11-03 Giacomo Brunello , Vsevolod Chestnov , Giulio Crisanti , Mathieu Giroux , Sid Smith

Extreme mass-ratio inspirals (EMRIs), consisting of a stellar-mass compact object spiraling into a massive black hole, are key sources for future space-based gravitational wave observatories such as LISA. Accurate modeling of these systems…

General Relativity and Quantum Cosmology · Physics 2025-12-16 Viktor Skoupý , Gabriel Andres Piovano , Vojtěch Witzany

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…

Astrophysics of Galaxies · Physics 2024-12-11 Barak Rom , Itai Linial , Karamveer Kaur , Re'em Sari

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…

General Relativity and Quantum Cosmology · Physics 2019-10-30 Shuo Xin , Wen-Biao Han , Shu-Cheng Yang

Full waveform inversion (FWI) updates the subsurface model from an initial model by comparing observed and synthetic seismograms. Due to high nonlinearity, FWI is easy to be trapped into local minima. Extended domain FWI, including…

Numerical Analysis · Mathematics 2024-08-28 Pengliang Yang , Wei Zhou

Fast, reliable orbital evolutions of compact objects around massive black holes will be needed as input for gravitational wave search algorithms in the data stream generated by the planned Laser Interferometer Space Antenna (LISA).…

General Relativity and Quantum Cosmology · Physics 2012-03-06 Sarp Akcay

The inspirals of compact objects into massive black holes are some of the most exciting of the potential sources of gravitational waves for the planned Laser Interferometer Space Antenna (LISA). Observations of such extreme mass ratio…

General Relativity and Quantum Cosmology · Physics 2016-11-15 Jonathan R Gair

We present a new, fast method for computing the inspiral trajectory and gravitational waves from extreme mass-ratio inspirals that can incorporate all known (and future) self-force results. Using near-identity (averaging) transformations we…

General Relativity and Quantum Cosmology · Physics 2018-07-30 Maarten van de Meent , Niels Warburton

Extreme mass-ratio inspirals pose a difficult challenge in terms of both search and parameter estimation for upcoming space-based gravitational-wave detectors such as LISA. Their signals are long and of complex morphology, meaning they…

General Relativity and Quantum Cosmology · Physics 2025-05-23 Philippa S. Cole , James Alvey , Lorenzo Speri , Christoph Weniger , Uddipta Bhardwaj , Davide Gerosa , Gianfranco Bertone

Many gravitational wave (GW) sources in the LISA band are expected to have non-negligible eccentricity. Furthermore, many of them can undergo acceleration because they reside in the presence of a tertiary. Here we develop analytical and…

High Energy Astrophysical Phenomena · Physics 2023-02-22 Zeyuan Xuan , Smadar Naoz , Xian Chen

The inspirals of stellar-mass compact objects into supermassive black holes constitute some of the most important sources for LISA. Detection of these sources using fully coherent matched filtering is computationally intractable, so…

General Relativity and Quantum Cosmology · Physics 2009-11-11 Jonathan Gair , Linqing Wen

We compute the linear metric perturbation to a Schwarzschild black hole generated by a spinning compact object, specialising to circular equatorial orbits with an (anti-)aligned spin vector. We derive a two-timescale expansion of the field…

General Relativity and Quantum Cosmology · Physics 2022-05-04 Josh Mathews , Adam Pound , Barry Wardell

Extreme-mass-ratio inspirals (EMRIs) could be detected by space-borne gravitational-wave (GW) detectors, such as the Laser Interferometer Space Antenna (LISA), TianQin and Taiji. Localizing EMRIs by GW detectors can help us select candidate…

Cosmology and Nongalactic Astrophysics · Physics 2024-07-29 Liang-Gui Zhu , Hui-Min Fan , Xian Chen , Yi-Ming Hu , Jian-dong Zhang

The accurate calculation of long-term phase evolution of gravitational wave (GW) forms from extreme (intermediate) mass ratio inspirals (E(I)MRIs) is an inevitable step to extract information from this system. Achieving this goal, it is…

General Relativity and Quantum Cosmology · Physics 2013-01-09 Soichiro Isoyama , Ryuichi Fujita , Norichika Sago , Hideyuki Tagoshi , Takahiro Tanaka

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,…

General Relativity and Quantum Cosmology · Physics 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…

General Relativity and Quantum Cosmology · Physics 2024-01-19 Matteo Della Rocca , Susanna Barsanti , Leonardo Gualtieri , Andrea Maselli

We examine extreme mass-ratio inspirals (EMRIs) as probes of beyond-vacuum general relativistic effects, accounting for both astrophysical environments and scalar Gauss-Bonnet (sGB) gravity. In beyond-vacuum scenarios, the evolution of an…

General Relativity and Quantum Cosmology · Physics 2026-01-08 Tieguang Zi , Mostafizur Rahman , Shailesh Kumar
‹ Prev 1 4 5 6 7 8 10 Next ›