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We present a new Python package, gwbench, implementing the well-established Fisher information formalism as a fast and straightforward tool for the purpose of gravitational-wave benchmarking, i.e. the estimation of signal-to-noise ratios…

General Relativity and Quantum Cosmology · Physics 2021-08-31 Ssohrab Borhanian

TianQin is a future space-based gravitational wave observatory targeting the frequency window of $10^{-4}$ Hz $\sim 1$ Hz. A large variety of gravitational wave sources are expected in this frequency band, including the merger of massive…

Gravitational waves (GWs) from tens of millions of compact binaries in our Milky Way enter the milli-Hertz band of space-based detection. The majority of them cannot be resolved individually, resulting in a foreground confusion noise for…

Instrumentation and Methods for Astrophysics · Physics 2023-03-14 Chang Liu , Wen-Hong Ruan , Zong-Kuan Guo

The detection of gravitational waves from binary black hole and neutron star mergers by ground-based interferometers, as well as the evidence for a gravitational wave background from pulsar timing array experiments, has marked a new era in…

High Energy Physics - Phenomenology · Physics 2026-03-26 Vedran Brdar , Marco Finetti , Marco Matteini , António P. Morais , Miha Nemevšek

TianQin is a proposed space-borne gravitational wave (GW) observatory composed of three identical satellites orbiting around the geocenter with a radius of $10^5$ km. It aims at detecting GWs in the frequency range of 0.1 mHz -- 1 Hz. The…

Solar and Stellar Astrophysics · Physics 2021-06-30 Wei Su , Yan Wang , Chen Zhou , Lingfeng Lu , Ze-Bing Zhou , T. Li , Tong Shi , Xin-Chun Hu , Ming-Yue Zhou , Ming Wang , Hsien-Chi Yeh , Han Wang , P. F. Chen

We investigate the capabilities of space-based gravitational-wave detector networks, specifically Taiji and LISA, to measure the anisotropies in stochastic gravitational-wave background (SGWB), which are characterized by the angular power…

General Relativity and Quantum Cosmology · Physics 2024-10-30 Zhi-Chao Zhao , Sai Wang

Space-based gravitational wave (GW) detectors will be able to observe signals from sources that are otherwise nearly impossible from current ground-based detection. Consequently, the well established signal detection method, matched…

General Relativity and Quantum Cosmology · Physics 2023-08-17 Tianyu Zhao , Ruoxi Lyu , He Wang , Zhoujian Cao , Zhixiang Ren

TianQin is a dedicated geocentric mission for space-based gravitational wave (GW) detection. Among its core technologies, the drag-free and pointing control subsystem (DFPCS) - consisting of suspension, drag-free and pointing controls -…

General Relativity and Quantum Cosmology · Physics 2025-11-14 Yuzhou Fang , Xuefeng Zhang , Hongyin Li

Gravitational wave (GW) observations have provided a novel tool to explore the universe. In the near future, space-borne detectors will further open the window of low-frequency GW band where abundant sources exist and invaluable information…

General Relativity and Quantum Cosmology · Physics 2024-11-21 Rui Niu , Wen Zhao

The next-generation gravitational-wave detectors, with their improved sensitivity and wider frequency bandwidth, will be capable of observing almost every compact binary signal from epochs before the first stars began to form, increasing…

General Relativity and Quantum Cosmology · Physics 2024-08-01 Koustav Chandra

The measurement of the Hubble constant $H_0$ plays a central role in modern cosmology. In this work, we investigate the potential of strongly lensed gravitational-wave (SLGW) signals from massive binary black hole mergers to constrain $H_0$…

Cosmology and Nongalactic Astrophysics · Physics 2026-05-28 Yong Yuan , Minghui Du , Wen-Fan Feng , Benyang Zhu , Qing Diao , Peng Xu , Xilong Fan

Clustering measurements of Gravitational Wave (GW) mergers in Luminosity Distance Space can be used in the future as a powerful tool for Cosmology. We consider tomographic measurements of the Angular Power Spectrum of mergers both in an…

Cosmology and Nongalactic Astrophysics · Physics 2021-02-23 S. Libanore , M. C. Artale , D. Karagiannis , M. Liguori , N. Bartolo , Y. Bouffanais , N. Giacobbo , M. Mapelli , S. Matarrese

We review potential low-frequency gravitational-wave sources, which are expected to be detected by Taiji, a Chinese space-based gravitational-wave detector, estimate the detection rates of these gravitational-wave sources and present the…

General Relativity and Quantum Cosmology · Physics 2020-06-05 Wen-Hong Ruan , Zong-Kuan Guo , Rong-Gen Cai , Yuan-Zhong Zhang

TianQin is a space-based laser interferometric gravitational wave detector aimed at detecting gravitational waves at low frequencies (0.1 mHz -- 1 Hz). It is formed by three identical drag-free spacecrafts in an equilateral triangular…

General Relativity and Quantum Cosmology · Physics 2018-04-18 Xin-Chun Hu , Xiao-Hong Li , Yan Wang , Wen-Fan Feng , Ming-Yue Zhou , Yi-Ming Hu , Shou-Cun Hu , Jian-Wei Mei , Cheng-Gang Shao

We discuss two geosynchronous gravitational wave mission concepts, which we generically name gLISA. One relies on the science instrument hosting program onboard geostationary commercial satellites, while the other takes advantage of recent…

General Relativity and Quantum Cosmology · Physics 2015-06-23 Massimo Tinto , Daniel DeBra , Sasha Buchman , Scott Tilley

Combining information from weak sources, such as known pulsars, for gravitational wave detection, is an attractive approach to improve detection efficiency. We propose an optimal statistic for a general ensemble of signals and apply it to…

General Relativity and Quantum Cosmology · Physics 2016-12-14 Xilong Fan , Yanbei Chen , Christopher Messenger

We investigate the formation and evolution of Ultra-Compact X-ray Binaries (UCXBs) using the COMPAS binary evolution code, starting from the Zero Age Main Sequence (ZAMS). Focusing on the low-mass MS companion channel, we simulate…

High Energy Astrophysical Phenomena · Physics 2025-02-18 Minghua Chen , Jinzhong liu

Several earth-based gravitational-wave (GW) detectors are actively pursuing the quest for placing observational constraints on models that predict the behavior of a variety of astrophysical and cosmological sources. These sources span a…

Astrophysics · Physics 2009-11-10 Sukanta Bose

We anticipate that the data acquired by the Laser Interferometer Space Antenna (LISA) will be dominated by the gravitational wave signals from several astrophysical populations. The analysis of these data is a new challenge and is the main…

General Relativity and Quantum Cosmology · Physics 2025-04-16 Senwen Deng , Stanislav Babak , Maude Le Jeune , Sylvain Marsat , Éric Plagnol , Andrea Sartirana