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相关论文: A weakly-modeled search for compact binary coalesc…

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We describe a novel, very fast and robust, directed search incoherent method for periodic gravitational waves (GWs) from neutron stars in binary systems. As directed search, we assume the source sky position to be known with enough…

天体物理仪器与方法 · 物理学 2017-06-07 Paola Leaci , Pia Astone , Sabrina D'Antonio , Sergio Frasca , Cristiano Palomba , Ornella Piccinni , Simone Mastrogiovanni

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

Searching for gravitational waves from compact binary coalescence (CBC) is performed by matched filtering the observed strain data from gravitational-wave observatories against a discrete set of waveform templates designed to accurately…

天体物理仪器与方法 · 物理学 2022-05-12 Rahul Dhurkunde , Henning Fehrmann , Alexander H. Nitz

We investigate the prospects of observing residual eccentricity in a population of compact binaries by calculating the power in the eccentric harmonics, following the methodology in arXiv:2411.04187. Although most observed compact binary…

高能天体物理现象 · 物理学 2025-12-09 Mukesh Kumar Singh , Ben G. Patterson , Stephen Fairhurst

A possible detection of sub-solar mass ultra-compact objects would lead to new perspectives on the existence of black holes that are not of astrophysical origin and/or pertain to formation scenarios of exotic ultra-compact objects. Both…

广义相对论与量子宇宙学 · 物理学 2022-02-23 Rafael C. Nunes

Third-generation gravitational wave (GW) observatories such as Einstein Telescope (ET) and Cosmic Explorer (CE) will be ideal instruments to probe the structure of neutron stars through the GWs they emit when undergoing binary coalescence.…

广义相对论与量子宇宙学 · 物理学 2022-05-04 Pawan Kumar Gupta , Anna Puecher , Peter T. H. Pang , Justin Janquart , Gideon Koekoek , Chris Van Den Broeck

Gravitational-wave astronomy provides a unique new way to study the expansion history of the Universe. In this work, we investigate the impact future gravitational-wave observatories will have on cosmology. Third-generation observatories…

宇宙学与河外天体物理 · 物理学 2021-03-03 Zhi-Qiang You , Xing-Jiang Zhu , Gregory Ashton , Eric Thrane , Zong-Hong Zhu

The detection of the events GW150914 and GW151226, both consistent with the merger of a binary black hole system (BBH), opened the era of gravitational wave (GW) astronomy. Besides BBHs, the most promising GW sources are the coalescences of…

The knowledge about the black hole mass function (BHMF) and its evolution would help to understand the origin of the BHs and how BH binaries formed at different stages of the history of the Universe. We demonstrate the ability of future…

星系天体物理 · 物理学 2020-03-11 Xuheng Ding , Kai Liao , Marek Biesiada , Zong-Hong Zhu

Gravitational waveforms for compact binary coalescences (CBCs) have been invaluable for detections by the LIGO-Virgo collaboration. They are obtained by a combination of semi-analytical models and numerical simulations. So far systematic…

广义相对论与量子宇宙学 · 物理学 2021-01-13 Abhay Ashtekar , Tommaso De Lorenzo , Neev Khera

By now, tens of gravitational-wave (GW) events have been detected by the LIGO and Virgo detectors. These GWs have all been emitted by compact binary coalescence, for which we have excellent predictive models. However, there might be other…

天体物理仪器与方法 · 物理学 2020-11-25 Tom Marianer , Dovi Poznanski , J. Xavier Prochaska

We present a first-stage study of the effect of using knowledge from electromagnetic (EM) observations in the gravitational wave (GW) data analysis of Galactic binaries that are predicted to be observed by the new Laser Interferometer Space…

天体物理仪器与方法 · 物理学 2015-06-05 Sweta Shah , Marc van der Sluys , Gijs Nelemans

Gravitational lensing in the wave-optics regime imprints characteristic frequency-dependent amplitude and phase modulations on gravitational-wave (GW) signals, yet to be detected by ground-based interferometers. Similar modulations may also…

广义相对论与量子宇宙学 · 物理学 2025-12-03 Anuj Mishra , Apratim Ganguly

The detection of gravitational waves (GWs) from coalescing compact binaries has become routine with ground-based detectors like LIGO and Virgo. However, beyond standard sources such as binary black holes and neutron stars and neutron star…

广义相对论与量子宇宙学 · 物理学 2024-12-30 Kanchan Soni , Alexander H. Nitz

The coalescence of binary neutron stars (BNS) is a prolific source of gravitational waves (GWs) and electromagnetic (EM) radiation, offering a dual observational window into the Universe. Lowering the signal-to-noise ratio (S/N) threshold…

高能天体物理现象 · 物理学 2024-10-01 Yun-Fei Du , Emre Seyit Yorgancioglu , Jin-Hui Rao , Ankit Kumar , Shu-Xu Yi , Shuang-Nan Zhang , Shu Zhang

The early and precise localization of gravitational waves (GWs) is pivotal in detecting their electromagnetic (EM) counterparts, especially for binary neutron stars (BNS) and neutron star-black hole binaries (NSBH). In this letter, we…

广义相对论与量子宇宙学 · 物理学 2024-05-15 Tao Yang , Rong-Gen Cai , Zhoujian Cao , Hyung Mok Lee

Third-generation (3G) gravitational wave detectors, in particular Einstein Telescope (ET) and Cosmic Explorer (CE), will explore unprecedented cosmic volumes in search for compact binary mergers, providing us with tens of thousands of…

宇宙学与河外天体物理 · 物理学 2023-09-06 Niccolò Muttoni , Danny Laghi , Nicola Tamanini , Sylvain Marsat , David Izquierdo-Villalba

Short-duration noise transients in LIGO and Virgo detectors significantly affect the search sensitivity of compact binary coalescence (CBC) signals, especially in the high mass region. In a previous work by the authors \cite{Joshi_2021}, a…

广义相对论与量子宇宙学 · 物理学 2024-09-26 Sunil Choudhary , Sukanta Bose , Sanjeev Dhurandhar , Prasanna Joshi

We present the prospects for the pre-merger detection and localization of binary neutron star mergers with third generation gravitational-wave observatories. We consider a wide variety of gravitational-wave networks which may be operating…

高能天体物理现象 · 物理学 2021-09-07 Alexander H. Nitz , Tito Dal Canton