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Related papers: Detecting Eccentric Globular Cluster Binaries with…

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We investigate the prospects of observing residual eccentricity in a population of compact binaries by calculating the power in the eccentric harmonics, following the methodology in arXiv:2411.04187. Although most observed compact binary…

High Energy Astrophysical Phenomena · Physics 2025-12-09 Mukesh Kumar Singh , Ben G. Patterson , Stephen Fairhurst

We study the impact of young clusters on the gravitational wave background from compact binary coalescence. We simulate a catalog of sources from population I/II isolated binary stars and stars born in young clusters, corresponding to one…

Cosmology and Nongalactic Astrophysics · Physics 2022-06-02 Carole Périgois , Filippo Santoliquido , Yann Bouffanais , Ugo N. Di Carlo , Nicola Giacobbo , Sara Rastello , Michela Mapelli , Tania Regimbau

The dynamics of a close binary system of globular clusters is considered. It is shown that the star transfer process from one of the components to the other should lead to the decrease of dimension of the first cluster with simultaneous…

Astrophysics · Physics 2009-10-31 G. A. Gurzadyan

One of the promising sources of gravitational radiation is a binary system composed of compact stars. It is an important question how the rotation of the bodies and the eccentricity of the orbit affect the detectable signal. Here we present…

General Relativity and Quantum Cosmology · Physics 2010-10-27 Mátyás Vasúth , János Majár

The Laser Interferometer Space Antenna (LISA) is a planned space-based observatory to measure gravitational waves in the millihertz frequency band. This frequency band is expected to be dominated by signals from millions of Galactic…

General Relativity and Quantum Cosmology · Physics 2024-06-04 Stefan H. Strub , Luigi Ferraioli , Cédric Schmelzbach , Simon C. Stähler , Domenico Giardini

The upcoming LISA mission will be able to detect gravitational waves from galactic and extragalactic compact binaries. Here, we report on LISA's capability to probe dark matter around these binaries if the latter constitute black holes. By…

Cosmology and Nongalactic Astrophysics · Physics 2025-01-17 Sohan Ghodla

The future space-based gravitational wave observatory, the Laser Interferometer Space Antenna, is expected to observe between 1-1000s extreme mass-ratio inspirals (EMRIs) per year. Due to the simultaneous presence of other gravitational…

General Relativity and Quantum Cosmology · Physics 2025-12-30 Sviatoslav Khukhlaev , Stanislav Babak

The orbital eccentricity of a merging binary black hole leaves an imprint on the associated gravitational-wave signal that can reveal whether the binary formed in isolation or in a dynamical environment, such as the core of a dense star…

High Energy Astrophysical Phenomena · Physics 2021-11-17 Isobel M. Romero-Shaw , Paul D. Lasky , Eric Thrane

We show that the existence of clouds of ultralight particles surrounding black holes during their cosmological history as members of a binary system can leave a measurable imprint on the distribution of masses and orbital eccentricities…

General Relativity and Quantum Cosmology · Physics 2024-09-18 Mateja Bošković , Matthias Koschnitzke , Rafael A. Porto

Astrometric noise in excess of parallax and proper motion could be a signature of orbital wobble of individual components in binary star systems. The combination of X-ray selection with astrometric noise can then be a powerful tool for…

High Energy Astrophysical Phenomena · Physics 2022-01-05 Poshak Gandhi , David A. H. Buckley , Phil Charles , Simon Hodgkin , Simone Scaringi , Christian Knigge , Anjali Rao

The localization and distance inference of gravitational waves are two crucial factors for dark sirens as precise probes of cosmology, astrophysics, and fundamental physics. In this Letter, for the first time we investigate the parameter…

General Relativity and Quantum Cosmology · Physics 2022-11-01 Tao Yang , Rong-Gen Cai , Zhoujian Cao , Hyung Mok Lee

Accurate modeling of gravitational-wave signals is essential for reliable inference of compact-binary source parameters, particularly for future space-based detectors operating in the milli- and deci-Hertz bands. In this work, we…

General Relativity and Quantum Cosmology · Physics 2026-01-13 Jin-Zhao Yang , Jia-Hao Zhong , Tao Yang

(abbreviated) We consider how tight binaries consisting of a super-massive black hole of mass $M=10^{3}-10^{4}M_{\odot}$ and a white dwarf can be formed in a globular cluster. We point out that a major fraction of white dwarfs tidally…

Astrophysics · Physics 2009-11-13 P. B. Ivanov , J. C. B. Papaloizou

It remains an open question whether the binary black hole mergers observed with gravitational-wave detectors originate from the evolution of isolated massive binary stars or were dynamically driven by perturbations from the environment.…

High Energy Astrophysical Phenomena · Physics 2026-01-23 Jakob Stegmann , Davide Gerosa , Isobel Romero-Shaw , Giulia Fumagalli , Hiromichi Tagawa , Lorenz Zwick

One of the main sources of gravitational waves for the LISA space-borne interferometer are galactic binary systems. The waveforms for these sources are represented by eight parameters, of which four are extrinsic, and four are intrinsic to…

General Relativity and Quantum Cosmology · Physics 2009-11-11 Neil J. Cornish , Edward K. Porter

Compact binary coalescences are a promising source of gravitational waves for second-generation interferometric gravitational-wave detectors such as advanced LIGO and advanced Virgo. While most binaries are expected to possess circular…

General Relativity and Quantum Cosmology · Physics 2015-06-23 Michael Coughlin , Patrick Meyers , Eric Thrane , Jialun Luo , Nelson Christensen

The dynamics of coalescing compact binaries can be affected by the environment in which the systems evolve, leaving detectable signatures into the emitted gravitational signal. In this paper we investigate the ability of gravitational-wave…

High Energy Astrophysical Phenomena · Physics 2021-01-06 Vitor Cardoso , Andrea Maselli

Stars on eccentric orbits around a massive black hole (MBH) emit bursts of gravitational waves (GWs) at periapse. Such events may be directly resolvable in the Galactic centre. However, if the star does not spiral in, the emitted GWs are…

Earth and Planetary Astrophysics · Physics 2015-05-13 Silvia Toonen , Clovis Hopman , Marc Freitag

We discuss spatial fluctuations in the gravitational wave background arising from unresolved Galactic binary sources, such as close white dwarf binaries, due to the fact the galactic binary source distribution is anisotropic. We introduce a…

Astrophysics · Physics 2009-11-10 Naoki Seto , Asantha Cooray

Gravitational wave detectors in space, particularly the LISA project, can study a rich variety of astronomical systems whose gravitational radiation is not detectable from the ground, because it is emitted in the low-frequency gravitational…

General Relativity and Quantum Cosmology · Physics 2007-05-23 B. F. Schutz