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Related papers: Eccentric binary neutron star mergers

200 papers

There is a high level of interest in black hole-neutron star binaries, not only because their mergers may be detected by gravitational wave observatories in the coming years, but also because of the possibility that they could explain a…

High Energy Astrophysical Phenomena · Physics 2012-06-06 William E. East , Frans Pretorius , Branson C. Stephens

The coalescence of a neutron-star binary is likely to result in the formation of a neutron-star merger remnant for a large range of binary mass configurations. The massive merger remnant shows strong oscillations, which are excited by the…

High Energy Astrophysical Phenomena · Physics 2016-02-03 A. Bauswein , J. Clark , N. Stergioulas , H. -T. Janka

Simulations of binary neutron stars have seen great advances in terms of physical detail and numerical quality. However, the spin of the neutron stars, one of the simplest global parameters of binaries, remains mostly unstudied. We present…

General Relativity and Quantum Cosmology · Physics 2015-04-15 Sebastiano Bernuzzi , Tim Dietrich , Wolfgang Tichy , Bernd Bruegmann

We study the orbital evolution of eccentric binary neutron stars. The orbit is described as a Quasi-Keplarian orbit with perturbations due to tidal couplings. We find that the tidal interaction between stars contributes to orbital…

General Relativity and Quantum Cosmology · Physics 2019-09-25 Huan Yang

Highly eccentric binary neutron star mergers exhibit unique dynamical and observational signatures compared to quasi-circular ones in terms of their gravitational wave signal and the ejection of matter, leading to different electromagnetic…

General Relativity and Quantum Cosmology · Physics 2025-04-15 Anna Neuweiler , Tim Dietrich , Bernd Brügmann

This work is the first in a series of studies aimed at understanding the dynamics of highly eccentric binary neutron stars, and constructing an appropriate gravitational-waveform model for detection. Such binaries are possible sources for…

General Relativity and Quantum Cosmology · Physics 2018-08-08 Huan Yang , William E. East , Vasileios Paschalidis , Frans Pretorius , Raissa F. P. Mendes

Spin can have significant effects on the electromagnetic transients accompanying binary neutron star mergers. The measurement of spin can provide important information about binary formation channels. In the absence of a strong neutron star…

High Energy Astrophysical Phenomena · Physics 2019-12-18 William E. East , Vasileios Paschalidis , Frans Pretorius , Antonios Tsokaros

Binary neutron star mergers observations are a unique way to constrain fundamental physics and astrophysics at the extreme. The interpretation of gravitational-wave events and their electromagnetic counterparts crucially relies on…

High Energy Astrophysical Phenomena · Physics 2020-11-18 Sebastiano Bernuzzi

We investigate the tidal resonance of the fundamental ($f$-)mode in spinning neutron stars, robustly tracing the onset of the excitation to its saturation, using numerical relativity for the first time. We performed long-term…

High Energy Physics - Phenomenology · Physics 2025-09-17 Hao-Jui Kuan , Kenta Kiuchi , Masaru Shibata

As current gravitational wave (GW) detectors increase in sensitivity, and particularly as new instruments are being planned, there is the possibility that ground-based GW detectors will observe GWs from highly eccentric neutron star…

General Relativity and Quantum Cosmology · Physics 2018-11-14 Swami Vivekanandji Chaurasia , Tim Dietrich , Nathan K. Johnson-McDaniel , Maximiliano Ujevic , Wolfgang Tichy , Bernd Brügmann

A number of works have shown that important information on the equation of state of matter at nuclear density can be extracted from the gravitational waves emitted by merging neutron-star binaries. We present a comprehensive analysis of the…

General Relativity and Quantum Cosmology · Physics 2016-06-29 Luciano Rezzolla , Kentaro Takami

The late stage of an inspiraling neutron star binary gives rise to strong gravitational wave emission due to its highly dynamic, strong gravity. Moreover, interactions between the stellar magnetospheres can produce considerable…

General Relativity and Quantum Cosmology · Physics 2013-08-27 Carlos Palenzuela , Luis Lehner , Marcelo Ponce , Steven L. Liebling , Matthew Anderson , David Neilsen , Patrick Motl

In this article, I introduce ideas and techniques to extract information about the equation of state of matter at very high densities from gravitational waves emitted before, during and after the merger of binary neutron stars. I also…

High Energy Astrophysical Phenomena · Physics 2019-09-30 Luca Baiotti

We study the gravitational-wave peak luminosity and radiated energy of quasicircular neutron star mergers using a large sample of numerical relativity simulations with different binary parameters and input physics. The peak luminosity for…

General Relativity and Quantum Cosmology · Physics 2018-03-21 Francesco Zappa , Sebastiano Bernuzzi , David Radice , Albino Perego , Tim Dietrich

We investigate the influence of magnetic fields upon the dynamics of and resulting gravitational waves from a binary neutron star merger in full general relativity coupled to ideal magnetohydrodynamics (MHD). We consider two merger…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Matthew Anderson , Eric W. Hirschmann , Luis Lehner , Steven L. Liebling , Patrick M. Motl , David Neilsen , Carlos Palenzuela , Joel E. Tohline

The increase in the sensitivity of gravitational wave interferometers will bring additional detections of binary black hole and double neutron star mergers. It will also very likely add many merger events of black hole - neutron star…

High Energy Astrophysical Phenomena · Physics 2021-09-06 Bhavesh Khamesra , Miguel Gracia-Linares , Pablo Laguna

As neutron stars merge they can approach very high nuclear density. Here, we summarized recent results for the evolution and gravitational wave emission from binary neutron star mergers using a a variety of nuclear equations of state with…

High Energy Astrophysical Phenomena · Physics 2023-02-28 Grant J. Mathews , Atul Kedia , Hee Il Kim , In-Saeng Suh

We present numerical simulations of binary neutron star mergers, comparing irrotational binaries to binaries of NSs rotating aligned to the orbital angular momentum. For the first time, we study spinning BNSs employing nuclear physics…

General Relativity and Quantum Cosmology · Physics 2015-04-10 Wolfgang Kastaun , Filippo Galeazzi

The observation of gravitational waves from merging black holes and neutron stars provides a unique opportunity to discern information about their astrophysical environment. Two signatures that are considered powerful tracers to distinguish…

High Energy Astrophysical Phenomena · Physics 2026-03-18 Gonzalo Morras , Geraint Pratten , Patricia Schmidt

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…

General Relativity and Quantum Cosmology · Physics 2018-03-22 Tim Dietrich , Sebastiano Bernuzzi , Bernd Bruegmann , Wolfgang Tichy
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