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When modified theories of gravity are considered, at most six gravitational wave polarization modes are allowed and classified in tensor modes, the only ones predicted by General Relativity (GR), along with additional vector and scalar…

宇宙学与河外天体物理 · 物理学 2022-03-29 Loris Amalberti , Nicola Bartolo , Angelo Ricciardone

We present PyMerger, a Python tool for detecting binary black hole (BBH) mergers from the Einstein Telescope (ET), based on a Deep Residual Neural Network model (ResNet). ResNet was trained on data combined from all three proposed…

天体物理仪器与方法 · 物理学 2025-07-02 Wathela Alhassan , T. Bulik , M. Suchenek

Over the last few years, there has been a large momentum to ensure that the third-generation era of gravitational wave detectors will find its realisation in the next decades, and numerous design studies have been ongoing for some time.…

天体物理仪器与方法 · 物理学 2023-08-02 Anna Puecher , Anuradha Samajdar , Tim Dietrich

Overlapping signals represent one of the major data analysis challenges in next-generation gravitational wave detectors. We leverage Transformers and Normalizing Flows, state-of-the-art machine learning algorithms, to address the parameter…

广义相对论与量子宇宙学 · 物理学 2025-05-06 Lucia Papalini , Federico De Santi , Massimiliano Razzano , Ik Siong Heng , Elena Cuoco

It is currently unknown how matter behaves at the extreme densities found within the cores of neutron stars. Measurements of the neutron star equation of state probe nuclear physics that is otherwise inaccessible in a laboratory setting.…

高能天体物理现象 · 物理学 2026-03-03 Kris Walker , Rory Smith , Eric Thrane , Daniel J. Reardon

We study the sensitivity of a pair of Einstein Telescopes (ET) (hypothetically located at the two sites currently under consideration for ET) to the anisotropies of the Stochastic Gravitational Wave Background (SGWB). We focus on the $\ell…

宇宙学与河外天体物理 · 物理学 2021-03-31 Giorgio Mentasti , Marco Peloso

Space-borne gravitational wave detectors like TianQin are expected to detect GW signals emitted by the mergers of massive black hole binaries. Luminosity distance information can be obtained from GW observations, and one can perform…

宇宙学与河外天体物理 · 物理学 2022-04-05 Liang-Gui Zhu , Yi-Ming Hu , Hai-Tian Wang , Jian-dong Zhang , Xiao-Dong Li , Martin Hendry , Jianwei Mei

We model the scalar waves produced during the ringdown stage of binary black hole coalescence in Einstein scalar Gauss-Bonnet (EsGB) gravity, using numerical relativity simulations of the theory in the decoupling limit. Through a conformal…

广义相对论与量子宇宙学 · 物理学 2023-06-14 Tamara Evstafyeva , Michalis Agathos , Justin L. Ripley

Space-borne gravitational wave detectors, such as the proposed Laser Interferometer Space Antenna, are expected to observe black hole coalescences to high redshift and with large signal-to-noise ratios, rendering their gravitational waves…

广义相对论与量子宇宙学 · 物理学 2010-04-29 Nicolas Yunes , Frans Pretorius , David Spergel

Detection of electromagnetic (EM) counterparts of pre-coalescence binaries has very important implications for our understanding of the evolution of these systems as well as the associated accretion physics. In addition, a combination of EM…

宇宙学与河外天体物理 · 物理学 2014-11-20 Tamara Bogdanovic , Michael Eracleous , Steinn Sigurdsson

The Einstein Telescope (ET) is a third-generation underground gravitational-wave observatory designed to extend the detection sensitivity down to a few Hertz. Newtonian noise is expected to limit the low-frequency sensitivity of ET,…

天体物理仪器与方法 · 物理学 2026-03-17 Patrick Schillings , Shi Yao , Johannes Erdmann , Andreas Rietbrock

Eccentricity of the inspiraling compact binaries can greatly improve the distance inference and source localization of dark sirens. In this paper, we continue the research for the space-borne atom interferometric gravitational-wave detector…

广义相对论与量子宇宙学 · 物理学 2022-10-19 Tao Yang , Rong-Gen Cai , Hyung Mok Lee

The Einstein Telescope (ET), along with other third-generation gravitational wave (GW) detectors, will be a key instrument for detecting GWs in the coming decades. However, analyzing the data and estimating source parameters will be…

Next-generation detectors are expected to be sensitive to postmerger signals from binary neutron star coalescences and thus to directly probe the remnant dynamics. We investigate the scientific potential of postmerger detections with the…

广义相对论与量子宇宙学 · 物理学 2022-05-23 Matteo Breschi , Rossella Gamba , Ssohrab Borhanian , Gregorio Carullo , Sebastiano Bernuzzi

Gravitational-wave (GW) dark sirens provide an independent probe of the cosmic expansion history. Their cosmological constraining power, however, depends critically on precise luminosity-distance measurements and sky localizations for…

宇宙学与河外天体物理 · 物理学 2026-03-16 Ji-Yu Song , Yue-Yan Dong , Shang-Jie Jin , Si-Ren Xiao , Jing-Fei Zhang , Xin Zhang

One of the scientific objectives of the Laser Interferometer Space Antenna (LISA) is to probe the expansion of the Universe using gravitational wave observations. Indeed, as gravitational waves from the coalescence of a massive black hole…

宇宙学与河外天体物理 · 物理学 2024-07-17 Alberto Mangiagli , Chiara Caprini , Sylvain Marsat , Lorenzo Speri , Robert R. Caldwell , Nicola Tamanini

[Abridged] Binary black holes may form and merge dynamically. These binaries are likely to become bound with high eccentricities, resulting in a burst of gravitational radiation at their point of closest approach. When such a binary is…

广义相对论与量子宇宙学 · 物理学 2024-11-25 Isobel M. Romero-Shaw , Nicholas Loutrel , Michael Zevin

Compact binary coalescences are a promising source of gravitational waves for second-generation interferometric gravitational-wave detectors such as advanced LIGO and advanced Virgo. While most binaries are expected to possess circular…

广义相对论与量子宇宙学 · 物理学 2015-06-23 Michael Coughlin , Patrick Meyers , Eric Thrane , Jialun Luo , Nelson Christensen

The detection of ~50 coalescing compact binaries with the Advanced LIGO and Virgo detectors has allowed us to test general relativity, constrain merger rates, and look for evidence of tidal effects, compact object spins, higher waveform…

广义相对论与量子宇宙学 · 物理学 2022-03-15 Marc Favata , Chunglee Kim , K. G. Arun , JeongCho Kim , Hyung Won Lee

Gravitational waves emitted from compact binary coalescence can be subject to wave diffraction if they are gravitationally lensed by an intervening mass clump whose Schwarzschild timescale matches the wave period. Waves in the ground-based…

广义相对论与量子宇宙学 · 物理学 2018-11-28 Liang Dai , Shun-Sheng Li , Barak Zackay , Shude Mao , Youjun Lu