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We derive a simple algebraic criterion to select the optimal detector network for a coherent wide parameter-space (all-sky) search for continuous gravitational waves. Optimality in this context is defined as providing the highest (average)…

广义相对论与量子宇宙学 · 物理学 2016-11-15 Reinhard Prix

The gravitational wave detection problem is challenging because the noise is typically overwhelming. Convolutional neural networks (CNNs) have been successfully applied, but require a large training set and the accuracy suffers…

天体物理仪器与方法 · 物理学 2019-10-21 Christopher Bresten , Jae-Hun Jung

The mechanism for gamma ray bursters and the detection of gravitational waves (GWs) are two outstanding problems facing modern physics. Many models of gamma ray bursters predict copious GW emission, so the assumption of an association…

天体物理学 · 物理学 2009-10-31 M. T. Murphy , J. K. Webb , I. S. Heng

In the previous paper, we introduced a new method of gravitational waves (GW) detection. In our proposal, we replaced usual Weber's metallic bar with a cold electronic plasma. We obtained a nonhomogenous differential equation for tangential…

广义相对论与量子宇宙学 · 物理学 2013-10-16 K. Mehdizadeh , O. Jalili , M. V. Takook

We propose a new method to detect gravitational waves, based on spatial coherence interferometry with stellar light, as opposed to the conventional temporal coherence interferometry with laser sources. The proposed method detects…

We investigate the ability of ground based gravitational wave observatories to detect gravitational wave lensing events caused by stellar mass lenses. We show that LIGO and Virgo possess the sensitivities required to detect lenses with…

高能天体物理现象 · 物理学 2018-12-05 Pierre Christian , Salvatore Vitale , Abraham Loeb

Gravitational lensing has been extensively observed for electromagnetic signals, but not yet for gravitational waves (GWs). Detecting lensed GWs will have many astrophysical and cosmological applications, and becomes more feasible as the…

广义相对论与量子宇宙学 · 物理学 2023-12-12 Ángel Garrón , David Keitel

High-frequency gravitational waves can be detected by observing the frequency modulation they impart on photons. We discuss fundamental limitations to this method related to the fact that it is impossible to construct a perfectly rigid…

高能物理 - 唯象学 · 物理学 2024-02-12 Torsten Bringmann , Valerie Domcke , Elina Fuchs , Joachim Kopp

The first generation of ground-based interferometric gravitational wave detectors, LIGO, GEO and Virgo, have operated and taken data at their design sensitivities over the last few years. The data has been examined for the presence of…

广义相对论与量子宇宙学 · 物理学 2015-06-15 Marie Anne Bizouard , Maria Alessandra Papa

Modern applications of strong gravitational lensing require the ability to use precise and varied observational data to constrain complex lens models. I discuss two sets of computational methods for lensing calculations. The first is a new…

天体物理学 · 物理学 2007-05-23 Charles R. Keeton

To evaluate the probability of a gravitational-wave candidate originating from noise, GstLAL collects noise statistics from the data it analyzes. Gravitational-wave signals of astrophysical origin get added to the noise statistics, harming…

广义相对论与量子宇宙学 · 物理学 2023-05-30 Prathamesh Joshi , Leo Tsukada , Chad Hanna

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

We study the prospects of detecting continuous gravitational waves (CGWs) from spinning neutron stars (NSs), gravitationally lensed by the galactic supermassive black hole. Assuming various astrophysically motivated spatial distributions of…

广义相对论与量子宇宙学 · 物理学 2023-01-13 Soummyadip Basak , Aditya Kumar Sharma , Shasvath J. Kapadia , Parameswaran Ajith

Quantum computational devices, currently under development, have the potential to accelerate data analysis techniques beyond the ability of any classical algorithm. We propose the application of a quantum algorithm for the detection of…

量子物理 · 物理学 2021-09-06 Sijia Gao , Fergus Hayes , Sarah Croke , Chris Messenger , John Veitch

Many continuous gravitational wave searches are affected by instrumental spectral lines that could be confused with a continuous astrophysical signal. Several techniques have been developed to limit the effect of these lines by penalising…

天体物理仪器与方法 · 物理学 2020-10-28 Joseph Bayley , Chris Messenger , Graham Woan

The gravitational wave detectors currently in operation perform the analysis of their scientific data jointly. Concerning the search for bursting sources, coherent data analysis methods have been shown to be more efficient. In the coherent…

广义相对论与量子宇宙学 · 物理学 2009-06-01 Olivier Rabaste , Eric Chassande-Mottin , Archana Pai

Advanced LIGO and Advanced Virgo are expected to make the first direct detections of gravitational waves (GW) in the next several years. Possible types of GW emission include short-duration bursts, signals from the coalescence of compact…

广义相对论与量子宇宙学 · 物理学 2019-08-15 C. Van Den Broeck

We describe a novel approach to the detection and parameter estimation of a non\textendash Gaussian stochastic background of gravitational waves. The method is based on the determination of relevant statistical parameters using importance…

广义相对论与量子宇宙学 · 物理学 2023-08-22 Riccardo Buscicchio , Anirban Ain , Matteo Ballelli , Giancarlo Cella , Barbara Patricelli

As the number of detected gravitational wave sources increase with increasing sensitivity of the gravitational wave observatories, observing strongly lensed pair of events will become a real possibility. Lensed GW events will have very…

宇宙学与河外天体物理 · 物理学 2022-06-29 Anupreeta More , Surhud More

We present a novel machine-learning approach to estimate selection effects in gravitational-wave observations. Using techniques similar to those commonly employed in image classification and pattern recognition, we train a series of…

高能天体物理现象 · 物理学 2020-11-18 Davide Gerosa , Geraint Pratten , Alberto Vecchio