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Accurate modeling of selection effects is a key ingredient to the success of gravitational-wave astronomy. The detection probability plays a crucial role in both statistical population studies, where it enters the hierarchical Bayesian…

高能天体物理现象 · 物理学 2024-05-16 Davide Gerosa , Malvina Bellotti

Gravitational wave detection requires an in-depth understanding of the physical properties of gravitational wave signals, and the noise from which they are extracted. Understanding the statistical properties of noise is a complex endeavor,…

广义相对论与量子宇宙学 · 物理学 2019-12-05 Wei Wei , E. A. Huerta

With the advent of gravitational wave astronomy, techniques to extend the reach of gravitational wave detectors are desired. In addition to the stellar-mass black hole and neutron star mergers already detected, many more are below the…

天体物理仪器与方法 · 物理学 2020-07-22 Rich Ormiston , Tri Nguyen , Michael Coughlin , Rana X. Adhikari , Erik Katsavounidis

Pulsar timing array experiments search for phenomena that produce angular correlations in the arrival times of signals from millisecond pulsars. The primary goal is to detect an isotropic and stochastic gravitational wave background. We use…

天体物理仪器与方法 · 物理学 2015-12-16 Caterina Tiburzi , George Hobbs , Matthew Kerr , William Coles , Shi Dai , Richard Manchester , Andrea Possenti , Ryan Shannon , Xiaopeng You

Efforts to detect gravitational waves by timing an array of pulsars have focused traditionally on stationary gravitational waves: e.g., stochastic or periodic signals. Gravitational wave bursts --- signals whose duration is much shorter…

天体物理仪器与方法 · 物理学 2014-11-20 Lee Samuel Finn , Andrea N. Lommen

The integral-field unit (IFU) spectrometers on board the James Webb Space Telescope (JWST) undersample the nearly diffraction-limited point spread function provided by the telescope optics. This undersampling produces large oscillating…

天体物理仪器与方法 · 物理学 2026-03-31 David R. Law , Melanie Clarke

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

The matched filtering technique is used to search for gravitational wave signals of a known form in the data taken by ground-based detectors. However, the analyzed data contains a number of artifacts arising from various broad-band…

广义相对论与量子宇宙学 · 物理学 2016-08-16 S. Babak , H. Grote , M. Hewitson , H. Lück , K. A. Strain

In the analysis of many synthetic aperture radar (SAR) experiments the possibility of passive background signals being recorded simultaneously and corrupting the image is often overlooked. Our work addresses this by considering the…

偏微分方程分析 · 数学 2025-02-11 David McMahon , Clifford J. Nolan

The detection of gravitational waves from compact binary coalescence by Advanced LIGO and Advanced Virgo provides an opportunity to study the strong-field, highly relativistic regime of gravity. Gravitational-wave tests of general…

广义相对论与量子宇宙学 · 物理学 2022-02-02 Jack Y. L. Kwok , Rico K. L. Lo , Alan J. Weinstein , Tjonnie G. F. Li

The key objective of Generative Adversarial Networks (GANs) is to generate new data with the same statistics as the provided training data. However, multiple recent works show that state-of-the-art architectures yet struggle to achieve this…

计算机视觉与模式识别 · 计算机科学 2021-11-05 Katja Schwarz , Yiyi Liao , Andreas Geiger

The primary scientific results of the future space-based gravitational wave interferometer LISA will come from the parameter inference of a large variety of gravitational wave sources. However, the presence of calibration errors could…

广义相对论与量子宇宙学 · 物理学 2022-08-31 Etienne Savalle , Jonathan Gair , Lorenzo Speri , Stanislav Babak

Instrumental variables are a popular study design for the estimation of treatment effects in the presence of unobserved confounders. In the canonical instrumental variables design, the instrument is a binary variable. In many settings,…

统计方法学 · 统计学 2024-10-10 Prabrisha Rakshit , Alexander Levis , Luke Keele

The number of astrophysical sources detected by Advanced LIGO and Virgo is expected to increase as the detectors approach their design sensitivity. Gravitational wave detectors are also sensitive to transient noise sources created by the…

天体物理仪器与方法 · 物理学 2018-07-25 Jade Powell

In this paper, we explore the feasibility of detecting gravitomagnetic effects generated by gravitational waves, by monitoring the relative orientation of the angular momentum vectors of test particles. We analyze the response of the…

广义相对论与量子宇宙学 · 物理学 2025-12-15 Yu-Qi Dong , Zhoujian Cao , Yu-Xiao Liu

Learning a causal effect from observational data is not straightforward, as this is not possible without further assumptions. If hidden common causes between treatment $X$ and outcome $Y$ cannot be blocked by other measurements, one…

机器学习 · 统计学 2015-11-10 Ricardo Silva , Shohei Shimizu

Quality improvement of interferometric data collected by gravitational-wave detectors such as Advanced LIGO and Virgo is mission critical for the success of gravitational-wave astrophysics. Gravitational-wave detectors are sensitive to a…

数据分析、统计与概率 · 物理学 2018-12-14 Marco Cavaglia , Kai Staats , Teerth Gill

The vast majority of sampling systems operate in a standard way: at each tick of a fixed-frequency master clock a digitizer reads out a voltage that corresponds to the value of some physical quantity and translates it into a bit pattern…

数据分析、统计与概率 · 物理学 2009-11-13 Edoardo Milotti

The Fisher-matrix formalism is used routinely in the literature on gravitational-wave detection to characterize the parameter-estimation performance of gravitational-wave measurements, given parametrized models of the waveforms, and…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Michele Vallisneri

Correlated magnetic noise from Schumann resonances threatens to contaminate the observation of a stochastic gravitational-wave background in interferometric detectors. In previous work, we reported on the first effort to eliminate global…