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Gravitational wave astronomy typically relies on rigorous, computationally expensive Bayesian analyses. Several methods have been developed to perform rapid Bayesian inference, but they are not yet used to inform our full analyses. We…

广义相对论与量子宇宙学 · 物理学 2026-01-30 Metha Prathaban , Charlie Hoy , Michael J. Williams

Gravitational-wave events are interpreted in terms of Bayesian posteriors for their source properties inferred under unphysical reference priors. Though these parameter estimates are important intermediate data products for downstream…

广义相对论与量子宇宙学 · 物理学 2026-04-20 Matthew Mould , Rodrigo Tenorio , Davide Gerosa

Gravitational waves emitted by a ringing black hole allow us to perform precision tests of general relativity in the strong field regime. With improvements to our current gravitational wave detectors and upcoming next-generation detectors,…

广义相对论与量子宇宙学 · 物理学 2024-12-04 Costantino Pacilio , Swetha Bhagwat , Roberto Cotesta

The detection of gravitational waves (GW) by the LIGO and Virgo collaborations offers a whole new range of possible tests and opens up a new window which may shed light on the nature of dark energy and dark matter. In the present work we…

宇宙学与河外天体物理 · 物理学 2019-08-28 Minghui Du , Weiqiang Yang , Lixin Xu , Supriya Pan , David F. Mota

We present two different search methods for electromagnetic counterparts to gravitational-wave (GW) events from ground-based detectors using archival NASA high-energy data from the Fermi-GBM and RXTE-ASM instruments. To demonstrate the…

We use the simulated gravitational-wave data to explore the evolution of the universe in light of current observations of the Laser Interferometer Gravitational-Wave Observatory (LIGO). Taking advantage of state-of-the-art Markov Chain…

宇宙学与河外天体物理 · 物理学 2017-07-27 Deng Wang , Xin-He Meng

We propose parameterizing the population distribution of the gravitational wave population modeling framework (Hierarchical Bayesian Analysis) with a normalizing flow. We first demonstrate the merit of this method on illustrative…

天体物理仪器与方法 · 物理学 2023-01-02 David Ruhe , Kaze Wong , Miles Cranmer , Patrick Forré

The field of gravitational-wave astronomy has been opened up by gravitational-wave observations made with interferometric detectors. This review surveys the current state-of-the-art in gravitational-wave detectors and data analysis methods…

广义相对论与量子宇宙学 · 物理学 2021-08-10 Sarah Caudill , Shivaraj Kandhasamy , Claudia Lazzaro , Andrew Matas , Magdalena Sieniawska , Amber L. Stuver

The detection of gravitational waves (GWs) from binary black holes (BBHs) has allowed the theory of general relativity to be tested in a previously unstudied regime: that of strong curvature and high GW luminosities. One distinctive and…

高能天体物理现象 · 物理学 2020-04-29 Oliver M. Boersma , David A. Nichols , Patricia Schmidt

Despite achieving sensitivities capable of detecting the extremely small amplitude of gravitational waves (GWs), LIGO and Virgo detector data contain frequent bursts of non-Gaussian transient noise, commonly known as 'glitches'. Glitches…

广义相对论与量子宇宙学 · 物理学 2023-04-21 Sofia Alvarez-Lopez , Annudesh Liyanage , Julian Ding , Raymond Ng , Jess McIver

In the gravitational-wave analysis of pulsar-timing-array datasets, parameter estimation is usually performed using Markov Chain Monte Carlo methods to explore posterior probability densities. We introduce an alternative procedure that…

广义相对论与量子宇宙学 · 物理学 2024-05-16 Michele Vallisneri , Marco Crisostomi , Aaron D. Johnson , Patrick M. Meyers

We develop a general data-driven and template-free method for the extraction of event waveforms in the presence of background noise. Recent gravitational-wave observations provide one of the significant scientific areas requiring data…

天体物理仪器与方法 · 物理学 2021-10-18 A. Akhshi , H. Alimohammadi , S. Baghram , S. Rahvar , M. R. Rahimi Tabar , H. Arfaei

A small fraction of the gravitational-wave (GW) signals that will be detected by second and third generation detectors are expected to be strongly lensed by galaxies and clusters, producing multiple observable copies. While optimal Bayesian…

广义相对论与量子宇宙学 · 物理学 2022-01-05 Srashti Goyal , Harikrishnan D. , Shasvath J. Kapadia , Parameswaran Ajith

(abridged for arXiv) With the first direct detection of gravitational waves, the Advanced Laser Interferometer Gravitational-wave Observatory (LIGO) has initiated a new field of astronomy by providing an alternate means of sensing the…

We introduce an ensemble of artificial intelligence models for gravitational wave detection that we trained in the Summit supercomputer using 32 nodes, equivalent to 192 NVIDIA V100 GPUs, within 2 hours. Once fully trained, we optimized…

广义相对论与量子宇宙学 · 物理学 2022-02-21 Pranshu Chaturvedi , Asad Khan , Minyang Tian , E. A. Huerta , Huihuo Zheng

The Advanced LIGO/Virgo interferometers have observed $\sim 100$ gravitational-wave transients enabling new questions to be answered about relativity, astrophysics, and cosmology. However, many of our current procedures for computing these…

广义相对论与量子宇宙学 · 物理学 2023-06-14 Noah E. Wolfe , Colm Talbot , Jacob Golomb

The Laser Interferometer Gravitational-Wave Observatory forms part of the international effort to detect and study gravitational waves of astrophysical origin. One of the major obstacles for this project with the first generation detectors…

广义相对论与量子宇宙学 · 物理学 2013-03-21 Duncan M. Macleod , Stephen Fairhurst , Brennan Hughey , Andrew P. Lundgren , Larne Pekowsky , Jameson Rollins , Joshua R. Smith

We present a rapid and reliable deep learning-based method for gravitational wave signal reconstruction from elusive, generic binary black hole mergers in LIGO data. We demonstrate that our model, \texttt{AWaRe}, effectively recovers…

广义相对论与量子宇宙学 · 物理学 2024-10-08 Chayan Chatterjee , Karan Jani

Space-based gravitational wave (GW) detectors will be able to observe signals from sources that are otherwise nearly impossible from current ground-based detection. Consequently, the well established signal detection method, matched…

广义相对论与量子宇宙学 · 物理学 2023-08-17 Tianyu Zhao , Ruoxi Lyu , He Wang , Zhoujian Cao , Zhixiang Ren
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