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Gravitational waves (GW) from eccentric binaries have intricate signals encoding important features about the location, creation and evolution of the sources. Eccentricity shortens the merger time, making the emitted GW statistically…

广义相对论与量子宇宙学 · 物理学 2024-05-13 Dillon Buskirk , Maria C. Babiuc Hamilton

Extreme-mass-ratio inspiral (EMRI) signals pose significant challenges in gravitational wave (GW) astronomy owing to their low-frequency nature and highly complex waveforms, which occupy a high-dimensional parameter space with numerous…

One of the primary goals of space-borne gravitational wave detectors is to detect and analyze extreme-mass-ratio inspirals (EMRIs). This endeavor presents a significant challenge due to the complex and lengthy EMRI signals, further…

广义相对论与量子宇宙学 · 物理学 2023-12-01 Qianyun Yun , Wen-Biao Han , Yi-Yang Guo , He Wang , Minghui Du

As gravitational wave (GW) detector networks continue to improve in sensitivity, the demand on the accuracy of waveform models which predict the GW signals from compact binary coalescences is becoming more stringent. At high signal-to-noise…

广义相对论与量子宇宙学 · 物理学 2024-10-23 Ritesh Bachhar , Michael Pürrer , Stephen R. Green

We describe a simple and efficient Python code to perform Bayesian forecasting for gravitational waves (GW) produced by Extreme-Mass-Ratio-Inspiral systems (EMRIs). The code runs on GPUs for an efficient parallelised computation of…

广义相对论与量子宇宙学 · 物理学 2025-01-22 Ippocratis D. Saltas , Roberto Oliveri

In the age of multi-messenger astrophysics, low-latency parameter estimation of gravitational-wave signals is essential for electromagnetic follow-up observations. In this paper, we present a new edition of the Bayesian parameter estimation…

广义相对论与量子宇宙学 · 物理学 2022-01-17 Caitlin A. Rose , Vinaya Valsan , Patrick R. Brady , Sinead Walsh , Chris Pankow

Bayesian parameter estimation is fast becoming the language of gravitational-wave astronomy. It is the method by which gravitational-wave data is used to infer the sources' astrophysical properties. We introduce a user-friendly Bayesian…

With the advance in computational resources, Bayesian inference is increasingly becoming the standard tool of practise in GW astronomy. However, algorithms such as Markov Chain Monte Carlo (MCMC) require a large number of iterations to…

广义相对论与量子宇宙学 · 物理学 2014-11-04 Edward K. Porter

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

We present a parameter estimation framework for gravitational wave (GW) signals that brings together several ideas to accelerate the inference process. First, we use the relative binning algorithm to evaluate the signal-to-noise-ratio…

广义相对论与量子宇宙学 · 物理学 2022-10-31 Tousif Islam , Javier Roulet , Tejaswi Venumadhav

How to calculate the gravitational waves (GWs) of Extreme-mass-ratio-inspirals (EMRIs) in a highly accurate and efficient way still keeps a challenge. In this paper, we present a so-called fully recalibrated waveforms for EMRIs with high…

广义相对论与量子宇宙学 · 物理学 2017-06-14 Ran Cheng , Wen-Biao Han

Building upon several recent advances in the development of effective-one-body models for spin-aligned eccentric binaries with individual masses $(m_1,m_2)$ we introduce a new EOB waveform model that aims at describing inspiralling binaries…

广义相对论与量子宇宙学 · 物理学 2022-10-12 Alessandro Nagar , Simone Albanesi

Pulsar Timing Arrays (PTAs) observations will detect gravitational waves (GWs) from the early inspiral phase of supermassive black hole binaries (SMBHBs) with orbital periods of weeks to years. Current PTA analyses generally assume circular…

广义相对论与量子宇宙学 · 物理学 2025-11-26 Sara Manzini , Stanislav Babak

This paper is to introduce a new software called CBwaves which provides a fast and accurate computational tool to determine the gravitational waveforms yielded by generic spinning binaries of neutron stars and/or black holes on eccentric…

广义相对论与量子宇宙学 · 物理学 2013-02-13 Péter Csizmadia , Gergely Debreczeni , István Rácz , Mátyás Vasúth

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…

广义相对论与量子宇宙学 · 物理学 2024-09-04 Han Gil Choi , Tao Yang , Hyung Mok Lee

The direct detection of gravitational waves (GWs) by LIGO has strikingly confirmed general relativity (GR), but testing GR via GWs requires estimating parameterized post-Einsteinian (ppE) deviation parameters in waveform models. Traditional…

天体物理仪器与方法 · 物理学 2026-02-03 Yong-Xin Zhang , Tian-Yang Sun , Chun-Yu Xiong , Song-Tao Liu , Yu-Xin Wang , Shang-Jie Jin , Jing-Fei Zhang , Xin Zhang

Extreme mass ratio inspirals (EMRIs) are thought to be one of the most exciting gravitational wave sources to be detected with LISA. Due to their complicated nature and weak amplitudes the detection and parameter estimation of such sources…

广义相对论与量子宇宙学 · 物理学 2013-01-04 Asad Ali , Nelson Christensen , Renate Meyer , Christian Röver

Space-based gravitational wave detectors like TianQin or LISA could observe extreme-mass-ratio-inspirals (EMRIs) at millihertz frequencies. The accurate identification of these EMRI signals from the data plays a crucial role in enabling…

广义相对论与量子宇宙学 · 物理学 2024-09-05 Chang-Qing Ye , Hui-Min Fan , Alejandro Torres-Orjuela , Jian-dong Zhang , Yi-Ming Hu

The detection of gravitational waves from extreme-mass-ratio inspirals (EMRIs) in space-borne antennas like Taiji and LISA promises deep insights into strong-field gravity and black hole physics. However, the complex, highly degenerate, and…

We present a python based parameter inference system for the gravitational wave (GW) measured in the millihertz band. This system includes the following features: the GW waveform originated from the massive black hole binaries (MBHB), the…

天体物理仪器与方法 · 物理学 2023-07-05 Renjie Wang , Bin Hu
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