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相关论文: Pre-merger sky localization of gravitational waves…

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We explore machine learning methods to detect gravitational waves (GW) from binary black hole (BBH) mergers using deep learning (DL) algorithms. The DL networks are trained with gravitational waveforms obtained from BBH mergers with…

Dynamical capture in dense stellar environments is a promising channel for producing eccentric compact binary mergers. Although there have been no confident detections of eccentric mergers to date, a few candidates show indications of…

高能天体物理现象 · 物理学 2026-05-13 A. Vincent Paul , Parthapratim Mahapatra , Marc Favata , K. G. Arun

We investigate pre-merger coherent radio emission from neutron star mergers arising due to the magnetospheric interaction between compact objects. We consider two plausible radiation mechanisms, and show that if one neutron star has a…

高能天体物理现象 · 物理学 2022-12-21 A. J. Cooper , O. Gupta , Z. Wadiasingh , R. A. M. J. Wijers , O. M. Boersma , I. Andreoni , A. Rowlinson , K. Gourdji

Gravitational waves in the postmerger phase of binary neutron star mergers may become detectable with planned upgrades of existing gravitational-wave detectors or with more sensitive next-generation detectors. The construction of template…

广义相对论与量子宇宙学 · 物理学 2024-05-16 Dimitrios Pesios , Ioannis Koutalios , Dimitris Kugiumtzis , Nikolaos Stergioulas

The recent Nobel-prize-winning detections of gravitational waves from merging black holes and the subsequent detection of the collision of two neutron stars in coincidence with electromagnetic observations have inaugurated a new era of…

广义相对论与量子宇宙学 · 物理学 2017-12-13 Daniel George , E. A. Huerta

Mergers of white dwarf binaries are a possible progenitor channel for Type Ia supernovae. While white dwarfs are abundant in the universe and relatively well understood, their gravitational wave signals have not yet been directly observed.…

广义相对论与量子宇宙学 · 物理学 2025-10-24 Giona Sala , Chiara Brandenstein , Sebastian Baum , Peter W. Graham

The first observation of a gravitational wave (GW) and a short gamma-ray burst (sGRB) emitted by the same binary neutron star (BNS) merger officially opened the field of GW multimessenger astronomy. In this paper, we define and address…

宇宙学与河外天体物理 · 物理学 2025-03-07 Leonardo Iampieri , Simone Mastrogiovanni , Francesco Pannarale

Joint gravitational wave (GW) and electromagnetic (EM) observations, as a key research direction in multi-messenger astronomy, will provide deep insight into the astrophysics of a vast range of astronomical phenomena. Uncertainties in the…

高能天体物理现象 · 物理学 2015-06-19 Xilong Fan , Christopher Messenger , Ik Siong Heng

As the technology of gravitational-wave and neutrino detectors becomes increasingly mature, a multi-messenger era of astronomy is ushered in. Advanced gravitational wave detectors are close to making a ground-breaking discovery of…

高能天体物理现象 · 物理学 2015-06-16 He Gao , Bing Zhang , Xue-Feng Wu , Zi-Gao Dai

Gravitational wave astronomy has established its role in measuring the equation of state governing cold supranuclear matter. To date and in the near future, gravitational wave measurements from neutron star binaries are likely to be…

广义相对论与量子宇宙学 · 物理学 2019-09-04 Ka Wa Tsang , Tim Dietrich , Chris Van Den Broeck

The LIGO Scientific, Virgo, and KAGRA collaboration has identified two binary neutron star merger candidates, GW170817 and GW190425, along with several binary black hole candidates. While GW170817 was confirmed as a BNS merger through its…

高能天体物理现象 · 物理学 2025-07-11 Sanika Khadkikar , Divya Singh

We present a convolutional neural network, designed in the auto-encoder configuration that can detect and denoise astrophysical gravitational waves from merging black hole binaries, orders of magnitude faster than the conventional…

广义相对论与量子宇宙学 · 物理学 2022-10-05 Chinthak Murali , David Lumley

The recent detection of gravitational waves and electromagnetic counterparts emitted during and after the collision of two neutron stars marks a breakthrough in the field of multi-messenger astronomy. Numerical relativity simulations are…

广义相对论与量子宇宙学 · 物理学 2018-03-22 Tim Dietrich , Sebastiano Bernuzzi , Bernd Bruegmann , Wolfgang Tichy

Gravitational waves emitted during the coalescence of binary neutron star systems carry information about the equation of state describing the extremely dense matter inside neutron stars. In particular, the equation of state determines the…

For third generation gravitational wave detectors, such as the Einstein Telescope, gravitational wave signals from binary neutron stars can last up to a few days before the neutron stars merge. To estimate the measurement uncertainties of…

高能天体物理现象 · 物理学 2018-07-04 Man Leong Chan , Chris Messenger , Ik Siong Heng , Martin Hendry

The remnant star of a neutron star merger is an anticipated loud source of kiloHertz gravitational waves that conveys unique information on the equation of state of hot matter at extreme densities. Observations of such signals are hampered…

广义相对论与量子宇宙学 · 物理学 2020-01-22 Matteo Breschi , Sebastiano Bernuzzi , Francesco Zappa , Michalis Agathos , Albino Perego , David Radice , Alessandro Nagar

The first gravitational wave detections of mergers between black holes and neutron stars represent a remarkable new regime of high-energy transient astrophysics. The signals observed with LIGO-Virgo detectors come from mergers of extreme…

太阳与恒星天体物理 · 物理学 2018-08-15 Matthias U. Kruckow , Thomas M. Tauris , Norbert Langer , Michael Kramer , Robert G. Izzard

Multi-messenger observations of gravitational waves and electromagnetic emission from compact object mergers offer unique insights into the structure of neutron stars, the formation of heavy elements, and the expansion rate of the Universe.…

天体物理仪器与方法 · 物理学 2025-08-20 Nayyer Raza , Man Leong Chan , Daryl Haggard , Ashish Mahabal , Jess McIver , Audrey Durand , Alexandre Larouche , Hadi Moazen

We demonstrate by a large set of merger simulations for symmetric binary neutron stars (NSs) that there is a tight correlation between the frequency peak of the postmerger gravitational-wave (GW) emission and the physical properties of the…

太阳与恒星天体物理 · 物理学 2015-05-28 A. Bauswein , H. -Th. Janka

Secure confirmation that a gravitational wave (GW) has been gravitationally lensed would bring together these two pillars of General Relativity for the first time. This breakthrough is challenging for many reasons, including: GW sky…