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Gravitational waves (GWs) are unique messengers as they travel through the Universe without alteration except for gravitational lensing. Their long wavelengths make them susceptible to diffraction by cosmic structures, providing an…

广义相对论与量子宇宙学 · 物理学 2026-03-12 Juno C. L. Chan , Jose María Ezquiaga , Rico K. L. Lo , Joey Bowman , Lorena Magaña Zertuche , Luka Vujeva

Gravitational-wave data analysis is rapidly absorbing techniques from deep learning, with a focus on convolutional networks and related methods that treat noisy time series as images. We pursue an alternative approach, in which waveforms…

天体物理仪器与方法 · 物理学 2019-05-31 Alvin J. K. Chua , Chad R. Galley , Michele Vallisneri

We describe a novel, very fast and robust, directed search incoherent method for periodic gravitational waves (GWs) from neutron stars in binary systems. As directed search, we assume the source sky position to be known with enough…

天体物理仪器与方法 · 物理学 2017-06-07 Paola Leaci , Pia Astone , Sabrina D'Antonio , Sergio Frasca , Cristiano Palomba , Ornella Piccinni , Simone Mastrogiovanni

The observational era of gravitational-wave astronomy began in the Fall of 2015 with the detection of GW150914. One potential type of detectable gravitational wave is short-duration gravitational-wave bursts, whose waveforms can be…

广义相对论与量子宇宙学 · 物理学 2017-06-07 Ryan Lynch , Salvatore Vitale , Reed Essick , Erik Katsavounidis , Florent Robinet

In this work, we explore a possible application of a machine learning classifier for candidate events in a template-based search for gravitational-wave (GW) signals from various compact system sources. We analyze data from the O3a and O3b…

广义相对论与量子宇宙学 · 物理学 2026-03-31 Lorenzo Mobilia , Gianluca Maria Guidi

Gravitational waves have opened a new observational window through which some of the most exotic objects in the Universe, as well as some of the secrets of gravitation itself, can now be revealed. Among all these new discoveries, we…

天体物理仪器与方法 · 物理学 2021-02-03 Camilla Danielski , Nicola Tamanini

Based on the prior O1-O2 observing runs, about 30% of the data collected by Advanced LIGO and Virgo in the next observing runs are expected to be single-interferometer data, i.e., they will be collected at times when only one detector in…

天体物理仪器与方法 · 物理学 2020-06-14 Marco Cavaglia , Sergio Gaudio , Travis Hansen , Kai Staats , Marek Szczepanczyk , Michele Zanolin

The quest to observe gravitational waves challenges our ability to discriminate signals from detector noise. This issue is especially relevant for transient gravitational waves searches with a robust eyes wide open approach, the so called…

天体物理仪器与方法 · 物理学 2017-04-19 S. Vinciguerra , M. Drago , G. A. Prodi , S. Klimenko , C. Lazzaro , V. Necula , F. Salemi , V. Tiwari , M. C. Tringali , G. Vedovato

We quantify the advantages of a recently proposed data processing technique to search for continuous gravitational wave (GW) signals from isolated rotating asymmetric neutron stars in data measured by ground-based GW interferometers. This…

广义相对论与量子宇宙学 · 物理学 2025-05-27 Harshit Raj , Sanjeev Dhurandhar , Massimo Tinto

Burst searches identify gravitational-wave (GW) signals in the detector data without use of a specific signal model, unlike the matched-filter searches that correlate data with simulated signal waveforms (templates). While matched filters…

高能天体物理现象 · 物理学 2024-10-25 Tanmaya Mishra , Shubhagata Bhaumik , V. Gayathri , Marek J. Szczepańczyk , Imre Bartos , Sergey Klimenko

All scientific claims of gravitational wave discovery to date rely on the offline statistical analysis of candidate observations in order to quantify significance relative to background processes. The current foundation in such offline…

广义相对论与量子宇宙学 · 物理学 2022-07-12 Michael Andrews , Manfred Paulini , Luke Sellers , Alexey Bobrick , Gianni Martire , Haydn Vestal

It is expected that gravitational waves, similar to electromagnetic waves, can be gravitationally lensed by intervening matters, producing multiple instances of the same signal arriving at different times from different apparent luminosity…

广义相对论与量子宇宙学 · 物理学 2023-06-14 Rico K. L. Lo , Ignacio Magana Hernandez

Physically motivated gravitational wave signals are needed in order to study the behaviour and efficacy of different data analysis methods seeking their detection. GravEn, short for Gravitational-wave Engine, is a MATLAB software package…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Amber L. Stuver , Lee Samuel Finn

Recently, the possibility has emerged of an early detection of astrophysical gravity waves. In certain astronomical configurations, and through a new light-deflection effect, gravity waves can cause apparent shifts in stellar angular…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Redouane Fakir

In this paper, we review the theoretical basis for generation of gravitational waves and the detection techniques used to detect a gravitational wave. To materialize this goal in a thorough way we first start with a mathematical background…

广义相对论与量子宇宙学 · 物理学 2024-01-01 Saibal Ray , R. Bhattacharya , Sanjay K. Sahay , Abdul Aziz , Amit Das

Gravitational waves (GWs) are fluctuations in the fabric of spacetime predicted by Einstein's theory of general relativity. Using a collection of millisecond pulsars as high-precision clocks, the nanohertz band of this radiation is likely…

宇宙学与河外天体物理 · 物理学 2019-08-13 P. Demorest , J. Lazio , A. Lommen

This paper presents a search for generic short-duration gravitational-wave (GW) transients (or GW bursts) in the data from the third observing run of Advanced LIGO and Advanced Virgo. We use coherent WaveBurst (cWB) pipeline enhanced with a…

By reaching through shrouding blastwaves, efficiently discovering off-axis events, and probing the central engine at work, gravitational wave (GW) observations will soon revolutionize the study of gamma-ray bursts. Already, analyses of GW…

宇宙学与河外天体物理 · 物理学 2013-05-16 Imre Bartos , Patrick Brady , Szabolcs Marka

The speed of gravitational waves $v_g$ can be measured with the time delay between gravitational-wave detectors. Our study provides a more precise measurement of $v_g$ using gravitational-wave signals only, compared with previous studies.…

广义相对论与量子宇宙学 · 物理学 2025-01-03 Anarya Ray , Pinchen Fan , Vincent F. He , Malachy Bloom , Suyu Michael Yang , Jay D. Tasson , Jolien D. E. Creighton