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Continuous gravitational waves from spinning deformed neutron stars have not been detected yet, and are one of the most promising signals for future detection. All-sky searches for continuous gravitational waves from unknown neutron stars…

广义相对论与量子宇宙学 · 物理学 2024-06-06 P. B. Covas , R. Prix

In this paper we explore the use of spatial clustering algorithms as a new computational approach for modeling the cosmic web. We demonstrate that such algorithms are efficient in terms of computing time needed. We explore three distinct…

天体物理仪器与方法 · 物理学 2022-09-14 Dimitrios Kelesis , Spyros Basilakos , Vicky Papadopoulou Lesta , Dimitris Fotakis , Andreas Efstathiou

All-sky, broadband, coherent searches for gravitational-wave pulsars are computationally limited. It is therefore important to make efficient use of available computational resources, notably by minimizing the number of templates used to…

广义相对论与量子宇宙学 · 物理学 2013-12-16 Karl Wette , Reinhard Prix

At third-generation (3G) gravitational-wave detector networks, compact binaries coalescences produce a ``confusion noise'' due to unresolved sources and to the error in the reconstruction of resolved sources, that can degrade the…

广义相对论与量子宇宙学 · 物理学 2024-11-07 Enis Belgacem , Francesco Iacovelli , Michele Maggiore , Michele Mancarella , Niccolò Muttoni

We describe the PyCBC search for gravitational waves from compact-object binary coalescences in advanced gravitational-wave detector data. The search was used in the first Advanced LIGO observing run and unambiguously identified two black…

The improvements in the sensitivity of the gravitational wave (GW) network enable the detection of several large redshift GW sources by third-generation GW detectors. These advancements provide an independent method to probe the large-scale…

宇宙学与河外天体物理 · 物理学 2022-02-02 Xiaoyun Shao , Zhoujian Cao , Xilong Fan , Shichao Wu

Wide parameter space searches for long lived continuous gravitational wave signals are computationally limited. It is therefore critically important that available computational resources are used rationally. In this paper we consider…

广义相对论与量子宇宙学 · 物理学 2016-03-09 Jing Ming , Badri Krishnan , Maria Alessandra Papa , Carsten Aulbert , Henning Fehrmann

In the absence of numerous gravitational-wave detections with confirmed electromagnetic counterparts, the "dark siren" method has emerged as a leading technique of gravitational-wave cosmology. The method allows redshift information of such…

We provide a comprehensive multi-aspect study on the performance of a pipeline used by the LIGO-Virgo Collaboration for estimating parameters of gravitational-wave bursts. We add simulated signals with four different morphologies…

Several rapid parameter estimation methods have recently been advanced to deal with the computational challenges of the problem of Bayesian inference of the properties of compact binary sources detected in the upcoming science runs of the…

广义相对论与量子宇宙学 · 物理学 2023-12-05 Lalit Pathak , Amit Reza , Anand S. Sengupta

Detections of coalescing binary black holes by LIGO have opened a new window of transient astronomy. With increasing sensitivity of LIGO and participation of the Virgo detector in Cascina, Italy, we expect to soon detect coalescence of…

天体物理仪器与方法 · 物理学 2017-09-19 Shaon Ghosh , Deep Chatterjee , David L. Kaplan , Patrick R. Brady , Angela Van Sistine

The luminosity distance is a key observable of gravitational-wave (GW) observations. We demonstrate how one can correctly retrieve the luminosity distance of compact binary coalescences (CBCs) if the GW signal is strongly lensed. We perform…

广义相对论与量子宇宙学 · 物理学 2024-02-14 Kyungmin Kim , Eungwang Seo , Chunglee Kim

The gravitational-wave events observed by the LIGO-Virgo-KAGRA collaboration are attributed to compact binary coalescences happening in vacuum. However, several studies suggest that gaseous environments may play a significant role in the…

广义相对论与量子宇宙学 · 物理学 2025-05-07 Soumen Roy , Rodrigo Vicente

We consider the problem of searching for continuous gravitational wave sources orbiting a companion object. This issue is of particular interest because the LMXB's, and among them Sco X-1, might be marginally detectable with 2 years…

广义相对论与量子宇宙学 · 物理学 2009-12-31 Sanjeev V. Dhurandhar , Alberto Vecchio

Since the initial discovery of gravitational-waves from merging black holes, the LIGO Scientific Collaboration together with Virgo and KAGRA have published 90 gravitational-wave observations of compact binary mergers in the…

广义相对论与量子宇宙学 · 物理学 2022-09-09 Vera Del Favero

The improved sensitivity of third generation gravitational wave detectors opens the possibility of detecting the primordial cosmological stochastic gravitational wave background (SGWB). Detection of the cosmological SGWB is facing a novel…

广义相对论与量子宇宙学 · 物理学 2023-03-23 Haowen Zhong , Rich Ormiston , Vuk Mandic

Gravitational wave signals from coalescing compact binaries in the LIGO and Virgo interferometers are primarily detected by the template based matched filtering method. While this method is optimal for stationary and Gaussian data…

广义相对论与量子宇宙学 · 物理学 2024-09-16 Chayan Chatterjee , Karan Jani

Coalescences of binary neutron stars and/or black holes are amongst the most likely gravitational-wave signals to be observed in ground based interferometric detectors. Apart from the astrophysical importance of their detection, they will…

广义相对论与量子宇宙学 · 物理学 2012-05-07 T. G. F. Li , W. Del Pozzo , S. Vitale , C. Van Den Broeck , M. Agathos , J. Veitch , K. Grover , T. Sidery , R. Sturani , A. Vecchio

Since the first detection of gravitational waves in 2015, gravitational-wave astronomy has emerged as a rapidly advancing field that holds great potential for studying the cosmos, from probing the properties of black holes to testing the…

广义相对论与量子宇宙学 · 物理学 2023-05-17 Anna Liu , Isaac C. F. Wong , Samson H. W. Leong , Anupreeta More , Otto A. Hannuksela , Tjonnie G. F. Li

Ground-based gravitational-wave detectors like the Advanced LIGO, Advanced Virgo, and KAGRA experiments now regularly witness gravitational waves from compact binary mergers: the relativistic collisions of neutron stars and/or stellar-mass…

高能天体物理现象 · 物理学 2024-10-28 T. A. Callister