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Gravitational-wave observations of extreme mass ratio inspirals (EMRIs) offer the opportunity to probe the environments of active galactic nuclei (AGN) through the torques that accretion disks induce on the binary. Within a Bayesian…

广义相对论与量子宇宙学 · 物理学 2023-08-15 Lorenzo Speri , Andrea Antonelli , Laura Sberna , Stanislav Babak , Enrico Barausse , Jonathan R. Gair , Michael L. Katz

The Laser Interferometer Space Antenna (LISA) will open the mHz frequency window of the gravitational wave (GW) landscape. Among all the new GW sources expected to emit in this frequency band, extreme mass-ratio inspirals (EMRIs) constitute…

宇宙学与河外天体物理 · 物理学 2021-11-03 Danny Laghi , Nicola Tamanini , Walter Del Pozzo , Alberto Sesana , Jonathan Gair , Stanislav Babak , David Izquierdo-Villalba

Inspiraling compact binaries have been identified as one of the most promising sources of gravitational waves for interferometric detectors. Most of these binaries are expected to have circularized by the time their gravitational waves…

广义相对论与量子宇宙学 · 物理学 2009-10-31 Karl Martel , Eric Poisson

In a recent paper, we determined the measurement accuracy of physical parameters for eccentric, precessing, non-spinning, inspiraling, stellar-mass black hole - black hole (BH-BH) binaries for the upcoming second-generation LIGO/VIRGO/KAGRA…

高能天体物理现象 · 物理学 2019-02-26 László Gondán , Bence Kocsis

The gravitational waves (GWs) from a binary black hole (BBH) with masses between 10^4 and 10^7 Msun can be detected with the Laser Interferometer Space Antenna (LISA) once their orbital frequency exceeds 10^-4 - 10^-5 Hz. The binary…

高能天体物理现象 · 物理学 2017-07-19 Zoltán Haiman

Eccentricity has emerged as a potentially useful tool for helping to identify the origin of black hole mergers. However, owing to the large number of harmonics required to compute the amplitude of an eccentric signal, eccentric templates…

高能天体物理现象 · 物理学 2022-01-26 Lisa Randall , Alexandra Shelest , Zhong-Zhi Xianyu

We assess the possibility of detecting both eccentricity and gas effects (migration and accretion) in the gravitational wave (GW) signal from LISA massive black hole binaries (MBHBs) at redshift $z=1$. Gas induces a phase correction to the…

星系天体物理 · 物理学 2025-01-16 Mudit Garg , Andrea Derdzinski , Shubhanshu Tiwari , Jonathan Gair , Lucio Mayer

Extreme mass-ratio inspirals (EMRIs), namely binary systems composed of a massive black hole and a compact stellar-mass object, are anticipated to be among the gravitational wave (GW) sources detected by the Laser Interferometer Space…

宇宙学与河外天体物理 · 物理学 2025-02-23 Chang Liu , Danny Laghi , Nicola Tamanini

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

We use Fisher information theory to forecast the bounds on the finite-size effects of astrophysical compact objects with next-generation gravitational wave detectors, including the ground-based Cosmic Explorer (CE) and Einstein Telescope…

广义相对论与量子宇宙学 · 物理学 2025-04-28 Joshua Shterenberg , Zihan Zhou

One of the primary sources for the future space-based gravitational wave detector, the Laser Interferometer Space Antenna, are the inspirals of small compact objects into massive black holes in the centres of galaxies. The gravitational…

广义相对论与量子宇宙学 · 物理学 2021-06-16 Lorenzo Speri , Jonathan R. Gair

Mergers of stellar-mass black holes on highly eccentric orbits are among the targets for ground-based gravitational-wave detectors, including LIGO, VIRGO, and KAGRA. These sources may commonly form through gravitational-wave emission in…

高能天体物理现象 · 物理学 2018-03-21 László Gondán , Bence Kocsis , Péter Raffai , Zsolt Frei

Mounting evidence indicates that some of the gravitational wave signals observed by the LIGO/Virgo/KAGRA observatories might arise from eccentric compact object binaries, increasing the urgency for accurate waveform models for such systems.…

When binary black holes form in the field, it is expected that their orbits typically circularize before coalescence. In galactic nuclei and globular clusters, binary black holes can form dynamically. Recent results suggest that…

高能天体物理现象 · 物理学 2018-11-13 Marcus E. Lower , Eric Thrane , Paul D. Lasky , Rory Smith

Gravitational lensing in the wave-optics regime imprints characteristic frequency-dependent amplitude and phase modulations on gravitational-wave (GW) signals, yet to be detected by ground-based interferometers. Similar modulations may also…

广义相对论与量子宇宙学 · 物理学 2025-12-03 Anuj Mishra , Apratim Ganguly

The space-based Laser Interferometer Space Antenna (LISA) will be able to observe the gravitational-wave signals from systems comprised of a massive black hole and a stellar-mass compact object. These systems are known as extreme-mass-ratio…

The detection of gravitational-wave signals from coalescing eccentric binary black holes would yield unprecedented information about the formation and evolution of compact binaries in specific scenarios, such as dynamical formation in dense…

广义相对论与量子宇宙学 · 物理学 2021-06-09 Yoshinta Setyawati , Frank Ohme

If binary intermediate-mass black holes (IMBHs; with masses between 100 and $10^4 \Msun$) form in dense stellar clusters, their inspiral will be detectable with the planned Laser Interferometer Space Antenna (LISA) out to several Gpc. Here…

太阳与恒星天体物理 · 物理学 2014-11-18 Pau Amaro-Seoane , Cole Miller , Marc Freitag

One of the most exciting potential sources of gravitational waves for low-frequency, space-based gravitational wave (GW) detectors such as the proposed Laser Interferometer Space Antenna (LISA) is the inspiral of compact objects into…

广义相对论与量子宇宙学 · 物理学 2014-11-17 Stanislav Babak , Hua Fang , Jonathan R. Gair , Kostas Glampedakis , Scott A. Hughes

Orbital eccentricity is a crucial physical effect to unveil the origin of compact-object binaries detected by ground- and spaced-based gravitational-wave (GW) observatories. Here, we perform for the first time a Bayesian inference study of…

广义相对论与量子宇宙学 · 物理学 2023-09-28 Antoni Ramos-Buades , Alessandra Buonanno , Jonathan Gair