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The sensitivity of searches for astrophysical transients in data from the LIGO is generally limited by the presence of transient, non-Gaussian noise artifacts, which occur at a high-enough rate such that accidental coincidence across…

The identification of electromagnetic emission from gravitational-wave sources typically requires multiple follow-up observations due to the limited fields-of-view of follow-up observatories compared to the poorly localized direction of…

天体物理仪器与方法 · 物理学 2020-07-01 Nihar Gupte , Imre Bartos

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

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

This paper provides a comprehensive guide to gravitational wave data processing, with a particular focus on signal generation, noise modeling, and optimization techniques. Beginning with an introduction to gravitational waves and the…

天体物理仪器与方法 · 物理学 2024-10-17 Jingxu Wu , YuWei Yin , Chenjia Li , Yan Wang

The phenomenon of Gravitational Wave (GW) analysis has grown in popularity as technology has advanced and the process of observing gravitational waves has become more precise. Although the sensitivity and the frequency of observation of GW…

机器学习 · 计算机科学 2023-11-07 Elena-Simona Apostol , Ciprian-Octavian Truică

Gravitational wave (GW) bursts (short duration signals) are expected to be associated with highly energetic astrophysical processes. With such high energies present, it is likely these astrophysical events will have signatures in the EM…

We introduce a novel approach for detecting gravitational waves through their influence on the shape of resolved astronomical objects. This method, complementary to pulsar timing arrays and astrometric techniques, explores the…

宇宙学与河外天体物理 · 物理学 2024-10-22 Giorgio Mentasti , Carlo R. Contaldi

We discuss a fast cross-Wigner transform based technique for detecting gravitational wave bursts, and estimating the direction of arrival, using a network of (three) non co-located interferometric detectors. The performances of the detector…

广义相对论与量子宇宙学 · 物理学 2015-06-03 Rocco P. Croce , Vincenzo Pierro , Fabio Postiglione , Maria Principe , Innocenzo M. Pinto

The recent advances in Gravitational-wave astronomy have greatly accelerated the study of Multimessenger astrophysics. There is a need for the development of fast and efficient algorithms to detect non-astrophysical transients and noises…

信号处理 · 电气工程与系统科学 2020-09-28 Rahul Nigam , Amit Mishra , Pranath Reddy

We propose Fast Radio Burst (FRB) timing, which uses the precision measurements of the arrival time differences of repeated FRB signals along multiple sightlines, as a new probe of gravitational waves (GWs) around nHz to $\mu$Hz…

广义相对论与量子宇宙学 · 物理学 2024-07-19 Zhiyao Lu , Lian-Tao Wang , Huangyu Xiao

The output of gravitational-wave interferometers, such as LIGO and Virgo, can be highly non-stationary. Broadband detector noise can affect the detector sensitivity on the order of tens of seconds. Gravitational-wave transient searches,…

天体物理仪器与方法 · 物理学 2020-08-07 S. Mozzon , L. K. Nuttall , A. Lundgren , T. Dent , S. Kumar , A. H. Nitz

Typical sources of gravitational wave bursts are supernovae, for which no accurate models exist. This calls for search methods with high efficiency and robustness to be used in the data analysis of foreseen interferometric detectors. A set…

广义相对论与量子宇宙学 · 物理学 2009-10-31 Thierry Pradier , Nicolas Arnaud , Marie-Anne Bizouard , Fabien Cavalier , Michel Davier , Patrice Hello

We propose a method for separating and detecting the non-tensor modes of stochastic gravitational-wave backgrounds (SGWBs) using networks of space-based gravitational-wave detectors. We consider four distinct data-reconstruction schemes for…

广义相对论与量子宇宙学 · 物理学 2026-02-24 Bo Mu , Zong-Kuan Guo

(abridged for arXiv) With the first direct detection of gravitational waves, the Advanced Laser Interferometer Gravitational-wave Observatory (LIGO) has initiated a new field of astronomy by providing an alternate means of sensing the…

"Glitches" -- transient noise artifacts in the data collected by gravitational wave interferometers like LIGO and Virgo -- are an ever-present obstacle for the search and characterization of gravitational wave signals. With some having…

广义相对论与量子宇宙学 · 物理学 2022-01-21 Jonathan Merritt , Ben Farr , Rachel Hur , Bruce Edelman , Zoheyr Doctor

We introduce a novel methodology for the operation of an early %warning alert system for gravitational waves. It is based on short convolutional neural networks. We focus on compact binary coalescences, for light, intermediate and heavy…

广义相对论与量子宇宙学 · 物理学 2021-05-31 Grégory Baltus , Justin Janquart , Melissa Lopez , Amit Reza , Sarah Caudill , Jean-René Cudell

While gravitational waves have been detected from mergers of binary black holes and binary neutron stars, signals from core collapse supernovae, the most energetic explosions in the modern Universe, have not been detected yet. Here we…

天体物理仪器与方法 · 物理学 2018-12-14 P. Astone , P. Cerda-Duran , I. Di Palma , M. Drago , F. Muciaccia , C. Palomba , F. Ricci

We propose a new detection method for gravitational wave bursts. It analyzes observed data with the Hilbert-Huang transform, which is an approach of time-frequency analysis constructed with the aim of manipulating non-linear and…

天体物理仪器与方法 · 物理学 2016-06-14 Kazuki Sakai , Ken-ichi Oohara , Masato Kaneyama , Hirotaka Takahashi

We introduce a method based on the loudest event statistic to calculate an upper limit or interval on the astrophysical rate of binary coalescence. The calculation depends upon the sensitivity and noise background of the detectors, and a…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Stephen Fairhurst , Patrick Brady