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Transient non-gaussian noise in gravitational wave detectors, commonly referred to as glitches, pose challenges for inference of the astrophysical properties of detected signals when the two are coincident in time. Current analyses aim…

广义相对论与量子宇宙学 · 物理学 2021-02-17 Katerina Chatziioannou , Neil Cornish , Marcella Wijngaarden , Tyson B. Littenberg

Searches for gravitational wave signals which do not have a precise model describing the shape of their waveforms are often performed using power detectors based on a quadratic form of the data. A new, optimal method of generalizing these…

广义相对论与量子宇宙学 · 物理学 2009-11-10 Julien Sylvestre

We introduce a "loosely coherent" method for detection of continuous gravitational waves that bridges the gap between semi-coherent and purely coherent methods. Explicit control over accepted families of signals is used to increase…

广义相对论与量子宇宙学 · 物理学 2015-05-18 Vladimir Dergachev

This paper presents an algorithm for constructing matched-filter template banks in an arbitrary parameter space. The method places templates at random, then removes those which are "too close" together. The properties and optimality of…

广义相对论与量子宇宙学 · 物理学 2010-04-22 Ian Harry , Bruce Allen , B. S. Sathyaprakash

We present a unified description of gravitational-wave data analysis that unites the template-based analysis used to detect deterministic signals from well-modeled sources, such as binary-black-hole mergers, with the cross-correlation…

广义相对论与量子宇宙学 · 物理学 2015-06-15 Neil J. Cornish , Joseph D. Romano

Searches for continuous gravitational waves target nearly monochromatic gravitational wave emission from e.g. non-axysmmetric fast-spinning neutron stars. Broad surveys often require to explicitly search for a very large number of different…

广义相对论与量子宇宙学 · 物理学 2022-12-14 Benjamin Steltner , Thorben Menne , Maria Alessandra Papa , Heinz-Bernd Eggenstein

I define here a novel function on a modeled space of gravitational-wave signals, before studying its properties as a statistic for detection, as an objective function for identification, and as an effective likelihood function for…

广义相对论与量子宇宙学 · 物理学 2022-11-30 Alvin J. K. Chua

We discuss the coherent search strategy to detect gravitational waves from inspiraling compact binaries by a network of correlated laser interferometric detectors. From the maximum likelihood ratio statistic, we obtain a coherent statistic…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Hideyuki Tagoshi , Himan Mukhopadhyay , Sanjeev Dhurandhar , Norichika Sago , Hirotaka Takahashi , Nobuyuki Kanda

Efficient searches for gravitational waves from compact binary coalescence are crucial for gravitational wave observations. We present a proof-of-concept for a method that utilizes a neural network taking an SNR map, a stack of SNR time…

广义相对论与量子宇宙学 · 物理学 2025-12-16 Takahiro S. Yamamoto , Kipp Cannon , Hayato Motohashi , Hiroaki W. H. Tahara

Traditionally, gravitational waves are detected with techniques such as matched filtering or unmodeled searches based on wavelets. However, in the case of generic black hole binaries with non-aligned spins, if one wants to explore the whole…

广义相对论与量子宇宙学 · 物理学 2023-07-26 Paraskevi Nousi , Alexandra E. Koloniari , Nikolaos Passalis , Panagiotis Iosif , Nikolaos Stergioulas , Anastasios Tefas

We describe a new method for extracting gravitational wave signals from pulsar timing data. We show that any gravitational wave signal can be decomposed into an orthogonal set of sky maps, with the number of maps equal to the number of…

广义相对论与量子宇宙学 · 物理学 2014-06-20 Neil J. Cornish , Rutger van Haasteren

Gravitational waves, although generally associated with extremely microscopic effects, can displace by hundreds of kilometers the pulsar interstellar scintillation patterns that bathe the Earth. The combination of the pulsar and the…

天体物理学 · 物理学 2008-02-03 Redouane Fakir

Astrophysical compact binary systems consisting of neutron stars and blackholes are an important class of gravitational wave (GW) sources for advanced LIGO detectors. Accurate theoretical waveform models from the inspiral, merger and…

广义相对论与量子宇宙学 · 物理学 2017-11-15 Soumen Roy , Anand S. Sengupta , Nilay Thakor

The detection of gravitational waves from compact binaries relies on a computationally burdensome processing of gravitational-wave detector data. The parameter space of compact-binary-coalescence gravitational waves is large and optimal…

数据分析、统计与概率 · 物理学 2011-05-12 Kipp Cannon , Chad Hanna , Drew Keppel , Antony C. Searle

Central to the gravitational wave detection problem is the challenge of separating features in the data produced by astrophysical sources from features produced by the detector. Matched filtering provides an optimal solution for Gaussian…

广义相对论与量子宇宙学 · 物理学 2010-12-09 Tyson B. Littenberg , Neil J. Cornish

A typical problem in the detection of the gravitational waves in the data of gravitational antennas is the non-stationarity of the Gaussian noise (and so the varying sensitivity) and the presence of big impulsive disturbances. In such…

广义相对论与量子宇宙学 · 物理学 2009-05-18 Sergio Frasca , Pia Astone

We present a theoretical background for the data analysis of the gravitational-wave signals from spinning neutron stars for Earth-based laser interferometric detectors. We introduce a detailed model of the signal including both the…

广义相对论与量子宇宙学 · 物理学 2009-12-30 Piotr Jaranowski , Andrzej Królak , Bernard F. Schutz

This study explores the integration of quantum algorithms, specifically Grover's algorithm, with quantum metrology to enhance the efficiency and sensitivity of gravitational-wave detection. By combining quantum matched filtering with…

广义相对论与量子宇宙学 · 物理学 2024-06-13 Vaidik A Sharma

All-sky surveys for isolated continuous gravitational waves present a significant data-analysis challenge. Semicoherent search methods are commonly used to efficiently perform the computationally-intensive task of searching for these weak…

天体物理仪器与方法 · 物理学 2018-07-04 K. Wette , S. Walsh , R. Prix , M. A. Papa

Once upon a time, predictions for the accuracy of inference on gravitational-wave signals relied on computationally inexpensive but often inaccurate techniques. Recently, the approach has shifted to actual inference on noisy signals with…

天体物理仪器与方法 · 物理学 2015-12-09 Carl-Johan Haster , Ilya Mandel , Will M. Farr