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Gravitational-wave parameter estimation for binary neutron star (BNS) systems poses severe computational challenges due to the extended signal duration, which can reach several minutes in current detectors. Neural posterior estimation…

General Relativity and Quantum Cosmology · Physics 2026-04-27 Masaki Iwaya , Vivien Raymond , Soichiro Morisaki , Kazuki Takada

Accurate extractions of the detected gravitational wave (GW) signal waveforms are essential to validate a detection and to probe the astrophysics behind the sources producing the GWs. This however could be difficult in realistic scenarios…

General Relativity and Quantum Cosmology · Physics 2021-09-20 Chayan Chatterjee , Linqing Wen , Foivos Diakogiannis , Kevin Vinsen

As next-generation gravitational-wave (GW) observatories approach unprecedented sensitivities, the need for robust methods to analyze increasingly complex, overlapping signals becomes ever more pressing. Existing matched-filtering…

General Relativity and Quantum Cosmology · Physics 2025-05-14 Tianyu Zhao , Yue Zhou , Ruijun Shi , Peng Xu , Zhoujian Cao , Zhixiang Ren

Estimating the parameters of gravitational wave signals detected by ground-based detectors requires an understanding of the properties of the detectors' noise. In particular, the most commonly used likelihood function for gravitational wave…

The detections of gravitational waves (GWs) from binary neutron star (BNS) systems and neutron star--black hole (NSBH) systems provide new insights into dense matter properties in extreme conditions and associated high-energy astrophysical…

High Energy Astrophysical Phenomena · Physics 2022-02-22 Chang Liu , Lijing Shao

This work introduces a novel deep learning-based approach for gravitational wave anomaly detection, aiming to overcome the limitations of traditional matched filtering techniques in identifying unknown waveform gravitational wave signals.…

Machine Learning · Computer Science 2025-03-18 Jianqi Yan , Alex P. Leung , Zhiyuan Pei , David C. Y. Hui , Sangin Kim

The coalescence of compact binaries containing neutron stars or black holes is one of the most promising signals for advanced ground-based laser interferometer gravitational-wave detectors, with the first direct detections expected over the…

High Energy Astrophysical Phenomena · Physics 2015-09-02 Simon Stevenson , Frank Ohme , Stephen Fairhurst

The physics of neutron stars can be studied with gravitational waves emitted from coalescing binary systems. Tidal effects become significant during the last few orbits and can be visible in the gravitational-wave spectrum above 500 Hz.…

The observation of gravitational wave signals from binary black hole mergers has established the field of gravitational wave astronomy. It is expected that future networks of gravitational wave detectors will possess great potential in…

General Relativity and Quantum Cosmology · Physics 2018-06-06 Joseph Mills , Vaibhav Tiwari , Stephen Fairhurst

Binary neutron stars (BNSs) will spend $\simeq 10$ -- 15 minutes in the band of Advanced LIGO and Virgo detectors at design sensitivity. Matched-filtering of gravitational-wave (GW) data could in principle accumulate enough signal-to-noise…

We demonstrate the application of the YOLOv5 model, a general purpose convolution-based single-shot object detection model, in the task of detecting binary neutron star (BNS) coalescence events from gravitational-wave data of current…

Instrumentation and Methods for Astrophysics · Physics 2022-11-09 João Aveiro , Felipe F. Freitas , Márcio Ferreira , Antonio Onofre , Constança Providência , Gonçalo Gonçalves , José A. Font

Gravitational wave lensing, particularly microlensing by compact dark matter (DM), offers a unique avenue to probe the nature of dark matter. However, conventional detection methods are often computationally expensive, inefficient, and…

Instrumentation and Methods for Astrophysics · Physics 2025-09-08 Ao Liu , Tonghua Liu , Dejiang Li , Cuihong Wen , Jieci Wang , Kai Liao , Jiaxing Cui , Huan Zhou

The next Galactic core-collapse supernova (CCSN) will be a unique opportunity to study within a fully multi-messenger approach the explosion mechanism responsible for the formation of neutron stars and stellar-mass black holes.…

High Energy Astrophysical Phenomena · Physics 2023-07-07 T. Bruel , M-A. Bizouard , M. Obergaulinger , P. Maturana-Russel , A. Torres-Forné , P. Cerdá-Durán , N. Christensen , J. A. Font , R. Meyer

Precise measurement of stellar properties through the observation of continuous gravitational waves from spinning non-axisymmetric neutron stars can shed light onto new physics beyond terrestrial laboratories. Although hitherto undetected,…

General Relativity and Quantum Cosmology · Physics 2024-01-09 Yuhan Hua , Karl Wette , Susan M. Scott , Matthew D. Pitkin

Next-generation ground-based gravitational-wave detectors, such as Cosmic Explorer (CE), are expected to be sensitive to gravitational-wave signals with frequencies as low as 5 Hz, allowing signals to spend a significant amount of time in…

High Energy Astrophysical Phenomena · Physics 2023-08-25 Pratyusava Baral , Soichiro Morisaki , Ignacio Magaña Hernandez , Jolien D. E. Creighton

As of this moment, fifty gravitational waves (GW) detections have been announced, thanks to the observational efforts of the LIGO-Virgo Collaboration, working with the Advanced LIGO and the Advanced Virgo interferometers. The detection of…

Instrumentation and Methods for Astrophysics · Physics 2021-12-30 Filip Morawski , Michał Bejger , Elena Cuoco , Luigia Petre

Gravitational waves modulate the apparent frequencies of other periodic signals. Low-frequency gravitational waves could therefore be detected by observing frequency modulations in signals from higher-frequency sources, e.g., those from…

General Relativity and Quantum Cosmology · Physics 2024-08-09 Jakob Stegmann , Sander M. Vermeulen

Core-collapse supernovae are fascinating astrophysical objects for multimessenger studies. Gravitational waves (GWs) are expected to play a role in the supernova explosion mechanism, but their modelling is also challenging due to the…

High Energy Astrophysical Phenomena · Physics 2021-11-10 Odysse Halim , Claudio Casentini , Marco Drago , Viviana Fafone , Kate Scholberg , Carlo Francesco Vigorito , Giulia Pagliaroli

The detection of gravitational waves opened up a new window to look into the Universe by probing phenomena invisible through electromagnetic observations. As gravitational waves interact very weakly with matter, their detection is…

General Relativity and Quantum Cosmology · Physics 2025-05-29 Soumen Roy , Bruno Bertrand , Justin Janquart

Pulsar timing arrays recently found evidence for a gravitational wave background (GWB), likely the stochastic overlap of GWs from many supermassive black hole binaries. Anticipating a continuous gravitational wave (CW) detection from a…

Cosmology and Nongalactic Astrophysics · Physics 2025-08-08 Emiko C. Gardiner , Bence Bécsy , Luke Zoltan Kelley , Neil J. Cornish
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