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Nearly all template-based gravitational wave (GW) searches only include the quasi-circular quadrupolar modes of the signals in their templates. Including additional degrees of freedom in the GW templates corresponding to higher-order…

广义相对论与量子宇宙学 · 物理学 2024-09-10 Digvijay Wadekar , Tejaswi Venumadhav , Javier Roulet , Ajit Kumar Mehta , Barak Zackay , Jonathan Mushkin , Matias Zaldarriaga

The discovery of gravitational waves (GWs) from merging compact binaries has transformed modern astrophysics, driving innovation in detection methodologies. Whereas matched-filtering techniques have long been the standard, the growing…

广义相对论与量子宇宙学 · 物理学 2025-09-08 Alexandra E. Koloniari , Lazaros Lazaridis , Christos Paschalidis , Nikolaos Stergioulas

The search for gravitational waves generated by the inspiral phase of binaries of light compact objects holds significant promise in testing the existence of primordial black holes and/or other exotic objects. In this paper, we present a…

广义相对论与量子宇宙学 · 物理学 2024-11-08 M. Andrés-Carcasona , O. J. Piccinni , M. Martínez , Ll. M. Mir

Searches for gravitational wave bursts that are triggered by the observation of astronomical events require a different mode of analysis than all-sky, blind searches. For one, much more prior information is usually available in a triggered…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Kazuhiro Hayama , Soumya D. Mohanty , Malik Rakhmanov , Shantanu Desai

One class of gravitational wave signals LIGO is searching for consists of short duration bursts of unknown waveforms. Potential sources include core collapse supernovae, gamma ray burst progenitors, and mergers of binary black holes or…

广义相对论与量子宇宙学 · 物理学 2009-07-22 Rubab Khan , Shourov Chatterji

Current matched-filter searches for gravitational waves from binary black-hole mergers compare the calibrated detector data to waveform templates that omit the higher-order mode content of the signals predicted by General Relativity.…

广义相对论与量子宇宙学 · 物理学 2022-12-14 Koustav Chandra , Juan Calderón Bustillo , Archana Pai , Ian Harry

We present an improved method of targeting continuous gravitational-wave signals in data from the LIGO and Virgo detectors with a higher efficiency than the time-domain Bayesian pipeline used in many previous searches. Our spectral…

天体物理仪器与方法 · 物理学 2016-12-19 Gareth S. Davies , Matthew Pitkin , Graham Woan

In this paper we propose a new strategy for gravitational waves detection from coalescing binaries, using IIR Adaptive Line Enhancer (ALE) filters. This strategy is a classical hierarchical strategy in which the ALE filters have the role of…

广义相对论与量子宇宙学 · 物理学 2012-06-14 F. Acernese , F. Barone , R. De Rosa , A. Eleuteri , L. Giordano , L. Milano

Matched-filtering gravitational wave search pipelines identify gravitational wave signals by computing correlations, i.e., signal-to-noise ratios, between gravitational wave detector data and gravitational wave template waveforms. Intrinsic…

Searches for gravitational waves from compact binary coalescences employ a process called matched filtering, in which gravitational wave strain data is cross-correlated against a bank of waveform templates. Data from every observing run of…

The detection of an electromagnetic transient which may originate from a binary neutron star merger can increase the probability that a given segment of data from the LIGO-Virgo ground-based gravitational-wave detector network contains a…

天体物理仪器与方法 · 物理学 2013-06-27 Luke Zoltan Kelley , Ilya Mandel , Enrico Ramirez-Ruiz

Gravitational-wave data from advanced-era interferometric detectors consists of background Gaussian noise, frequent transient artefacts, and rare astrophysical signals. Multiple search algorithms exist to detect the signals from compact…

广义相对论与量子宇宙学 · 物理学 2026-01-13 Gregory Ashton , Ann-Kristin Malz , Nicolo Colombo

Tests of general relativity (GR) with gravitational waves (GWs) introduce additional deviation parameters in the waveform model. The enlarged parameter space makes inference computationally costly, which has so far limited systematic,…

广义相对论与量子宇宙学 · 物理学 2026-04-06 Dhruv Kumar , Ish Gupta , Bangalore Sathyaprakash

Continuous gravitational wave signals, like those expected by asymmetric spinning neutron stars, are among the most promising targets for LIGO and Virgo detectors. The development of fast and robust data analysis methods is crucial to…

广义相对论与量子宇宙学 · 物理学 2018-11-13 O. J. Piccinni , S. Frasca , P. Astone , S. D'Antonio , G. Intini , P. Leaci , S. Mastrogiovanni , A. Miller , C. Palomba , A. Singhal

Characterization of search selection effects comprises a core element of gravitational-wave data analysis. Knowledge of selection effects is needed to predict observational prospects for future surveys and is essential in the statistical…

高能天体物理现象 · 物理学 2025-01-16 Thomas A. Callister , Reed Essick , Daniel E. Holz

This paper proposes a thermal-infrared (TIR) remote target detection system for maritime rescue using deep learning and data augmentation. We established a self-collected TIR dataset consisting of multiple scenes imitating human rescue…

计算机视觉与模式识别 · 计算机科学 2023-11-01 Sungjin Cheong , Wonho Jung , Yoon Seop Lim , Yong-Hwa Park

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

Machine learning has become an effective tool for processing the extensive data sets produced by large physics experiments. Gravitational-wave detectors are now listening to the universe with quantum-enhanced sensitivity, accomplished with…

天体物理仪器与方法 · 物理学 2023-11-07 Chris Whittle , Ge Yang , Matthew Evans , Lisa Barsotti

Existing deep Thermal InfraRed (TIR) trackers only use semantic features to describe the TIR object, which lack the sufficient discriminative capacity for handling distractors. This becomes worse when the feature extraction network is only…

计算机视觉与模式识别 · 计算机科学 2019-06-11 Qiao Liu , Xin Li , Zhenyu He , Nana Fan , Di Yuan , Hongpeng Wang