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The present operation of the ground-based network of gravitational-wave laser interferometers in "enhanced" configuration brings the search for gravitational waves into a regime where detection is highly plausible. The development of…

宇宙学与河外天体物理 · 物理学 2015-03-13 John Veitch , Alberto Vecchio

Autonomous platforms require accurate positioning to complete their tasks. To this end, a Kalman filter-based algorithms, such as the extended Kalman filter or invariant Kalman filter, utilizing inertial and external sensor fusion are…

系统与控制 · 电气工程与系统科学 2026-03-31 Barak Diker , Itzik Klein

Accurately calibrating the center-of-mass (CoM) offset between the spacecraft (SC) and the inertial sensor test mass (TM) is crucial for space-based gravitational-wave (GW) antennas, such as LISA and Taiji. Current calibration methods…

广义相对论与量子宇宙学 · 物理学 2026-01-23 Haoyue Zhang , Dong Ye , Peng Xu , Yunhai Geng , Li-E Qiang , Ziren Luo

The pulsar timing array community has recently reported the first evidence of a low-frequency stochastic gravitational wave background. With longer observational timespans we expect to be able to resolve individual gravitational wave…

天体物理仪器与方法 · 物理学 2024-07-17 Gabriel E. Freedman , Sarah J. Vigeland

A joint fit of the mass and redshift distributions of the population of Binary Black Holes detected with Gravitational-Wave observations can be used to obtain constraints on the Hubble parameter and on deviations from General Relativity in…

With increasing sensitivity of the gravitational wave (GW) detectors, we expect a significant rise in the detectable GW events. To process, analyse and identify such large amounts of GW signals arising from mergers of Binary Black Holes…

天体物理仪器与方法 · 物理学 2026-01-27 Soorya Narayan , Anupreeta More , Sunil Choudhary , Sudhagar Suyamprakasam , Sukanta Bose

Interferometric gravitational-wave observatories have opened a new era in astronomy. The rich data produced by an international network enables detailed analysis of the curved space-time around black holes. With nearly one hundred signals…

广义相对论与量子宇宙学 · 物理学 2023-03-07 Gregory Ashton

Pulsar timing arrays' hint for a stochastic gravitational-wave background (SGWB) leverages the expectations of a future detection in the millihertz band, particularly with the LISA space mission. However, finding an SGWB with a single…

广义相对论与量子宇宙学 · 物理学 2026-02-12 Nikolaos Karnesis , Quentin Baghi , Jean-Baptiste Bayle , Nikiforos Galanis

Supermassive black hole binary systems (SMBHBs) should be the most powerful sources of gravitational waves (GWs) in the Universe. Once Pulsar Timing Arrays (PTAs) detect the stochastic GW background from their cosmic merger history,…

高能天体物理现象 · 物理学 2023-06-26 Nicole M. Khusid , Chiara M. F. Mingarelli , Priyamvada Natarajan , J. Andrew Casey-Clyde , Anna Barnacka

We investigate how multi-band gravitational wave (GW) observations can constrain the uncertainties in the Hubble parameter ($H_0$) using primordial black holes (PBHs) as possible sources. Our framework combines scalar-induced and…

宇宙学与河外天体物理 · 物理学 2026-04-27 Setabuddin , Md Riajul Haque , Ratna Koley , Supratik Pal

Stochastic gravitational-wave backgrounds (SGWBs) derive from the superposition of numerous individually unresolved gravitational-wave (GW) signals. Detecting SGWBs provides us with invaluable information about astrophysics, cosmology, and…

广义相对论与量子宇宙学 · 物理学 2023-09-26 Bei Zhou , Luca Reali , Emanuele Berti , Mesut Çalışkan , Cyril Creque-Sarbinowski , Marc Kamionkowski , B. S. Sathyaprakash

The stochastic gravitational-wave background (SGWB) from eccentric stellar-mass binary black holes (SBBHs) holds crucial clues to their origins. For the first time, we employ a Bayesian framework to assess the detectability and…

广义相对论与量子宇宙学 · 物理学 2025-10-30 Zheng-Cheng Liang , Zhi-Yuan Li , Yi-Ming Hu

With the advent of gravitational-wave astronomy and the discovery of more compact binary coalescences, data quality improvement techniques are desired to handle the complex and overwhelming noise in gravitational wave (GW) observational…

广义相对论与量子宇宙学 · 物理学 2024-02-21 He Wang , Yue Zhou , Zhoujian Cao , Zong-Kuan Guo , Zhixiang Ren

We use the latest constraints on the population of stellar origin binary black holes (SOBBH) from LIGO/Virgo/KAGRA (LVK) observations, to estimate the stochastic gravitational wave background (SGWB) they generate in the frequency band of…

Approximations are commonly employed in realistic applications of scientific Bayesian inference, often due to convenience if not necessity. In the field of gravitational-wave (GW) data analysis, fast-to-evaluate but approximate waveform…

广义相对论与量子宇宙学 · 物理学 2024-04-03 Ruiting Mao , Jeong Eun Lee , Ollie Burke , Alvin J. K. Chua , Matthew C. Edwards , Renate Meyer

This work introduces an algorithm for state estimation on manifolds within the framework of the Kalman filter. Its primary objective is to provide a methodology enabling the evaluation of the precision of existing Kalman filter variants…

系统与控制 · 电气工程与系统科学 2025-09-24 Svyatoslav Covanov , Cedric Pradalier

A likely source of a gravitational-wave background (GWB) in the frequency band of the Advanced LIGO, Virgo and KAGRA detectors is the superposition of signals from the population of unresolvable stellar-mass binary-black-hole (BBH) mergers…

广义相对论与量子宇宙学 · 物理学 2023-05-24 Jessica Lawrence , Kevin Turbang , Andrew Matas , Arianna I. Renzini , Nick van Remortel , Joseph D. Romano

Stabilization, disturbance rejection, and control of optical beams and optical spots are ubiquitous problems that are crucial for the development of optical systems for ground and space telescopes, free-space optical communication…

系统与控制 · 电气工程与系统科学 2023-05-24 Aleksandar Haber , Michael Krainak

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

Observations have revealed that nearly all galaxies contain supermassive black holes (SMBHs) at their centers. When galaxies merge, these SMBHs form SMBH binaries (SMBHBs) that emit low-frequency gravitational waves (GWs). The incoherent…

天体物理仪器与方法 · 物理学 2018-08-14 Sarah J. Vigeland , Kristina Islo , Stephen R. Taylor , Justin A. Ellis