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Related papers: Neutron Star Merger Remnants

200 papers

Neutron stars are compact and dense celestial objects that offer the unique opportunity to explore matter and its interactions under conditions that cannot be reproduced elsewhere in the Universe. Their extreme gravitational, rotational and…

High Energy Astrophysical Phenomena · Physics 2024-01-29 Stefano Ascenzi , Vanessa Graber , Nanda Rea

In the dawn of the multi-messenger era including gravitational waves, which was marked by the first ever coincident detection of gravitational waves and electromagnetic radiation it is important to lay back and think about established…

High Energy Astrophysical Phenomena · Physics 2018-08-20 Antonios Nathanail

The rich phenomenology of binary neutron star mergers offers a unique opportunity to test general relativity, investigate matter at supranuclear densities, and learn more about the origin of heavy elements. As multi-messenger sources, they…

We present a novel universal relation for binary neutron star mergers with long-lived neutron star remnants: inspired by recent work based on numerical relativity simulations, we propose a novel approach using perturbative calculations that…

General Relativity and Quantum Cosmology · Physics 2021-07-14 Praveen Manoharan , Christian J. Krüger , Kostas D. Kokkotas

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

The existence of neutron star mergers has been supported since the discovery of the binary pulsar and the observation of its orbital energy loss, consistent with General Relativity. They are considered nucleosynthesis sites of the rapid…

High Energy Astrophysical Phenomena · Physics 2017-10-09 F. -K. Thielemann , M. Eichler , I. V. Panov , B. Wehmeyer

Numerical simulations of neutron star--neutron star and neutron star--black hole binaries play an important role in our ability to model gravitational wave and electromagnetic signals powered by these systems. These simulations have to take…

High Energy Astrophysical Phenomena · Physics 2023-03-17 Francois Foucart

The first multimessenger observation of a binary neutron star (BNS) merger in August 2017 demonstrated the huge scientific potential of these extraordinary events. This breakthrough led to a number of discoveries and provided the best…

High Energy Astrophysical Phenomena · Physics 2020-07-01 Riccardo Ciolfi

Remnants of neutron-star mergers are essentially massive, hot, differentially rotating neutron stars, which are initially strongly oscillating. They represent a unique probe for high-density matter because the oscillations are detectable…

High Energy Astrophysical Phenomena · Physics 2016-04-20 Andreas Bauswein , Nikolaos Stergioulas , Hans-Thomas Janka

Observations of gravitational radiation from compact binary systems provide an unprecedented opportunity to test General Relativity in the strong field dynamical regime. In this paper, we investigate how future observations of gravitational…

General Relativity and Quantum Cosmology · Physics 2018-03-21 Laura Sagunski , Jun Zhang , Matthew C. Johnson , Luis Lehner , Mairi Sakellariadou , Steven L. Liebling , Carlos Palenzuela , David Neilsen

Neutron star mergers are among the most promising sources of gravitational waves for advanced ground-based detectors. These mergers are also expected to power bright electromagnetic signals, in the form of short gamma-ray bursts,…

Binary neutron star mergers are expected to be one of the most promising source of gravitational waves (GW) for the network of laser interferometric and bar detectors becoming operational in the next few years. The merger wave signal is…

Astrophysics · Physics 2015-06-24 R. Oechslin , G. Poghosyan , K. Uryu

The mergers of black hole-neutron star binaries are calcuated using a pseudo-general relativistic potential that incorporates ${\mathcal O}(v^2/c^2)^3$ post-Newtonian corrections. Both normal matter neutron stars and self-bound strange…

Astrophysics · Physics 2009-11-10 Madappa Prakash , Sasa Ratkovic , James M. Lattimer

We review the current status of studies of the coalescence of binary neutron star systems. We begin with a discussion of the formation channels of merging binaries and we discuss the most recent theoretical predictions for merger rates.…

General Relativity and Quantum Cosmology · Physics 2015-06-04 Joshua A. Faber , Frederic A. Rasio

Binary neutron star mergers used to be the most promising candidate for gravitational waves for ground-based gravitational wave detectors, such as advanced LIGO and advanced VIRGO. This was proved by the detection of gravitational waves…

High Energy Astrophysical Phenomena · Physics 2025-09-12 Kenta Kiuchi

Neutron star mergers have recently become a tool to study extreme gravity, nucleosynthesis, and the chemical composition of the Universe. To date, there has been one joint gravitational and electromagnetic observation of a binary neutron…

High Energy Astrophysical Phenomena · Physics 2023-04-05 Amelia Henkel , Francois Foucart , Geert Raaijmakers , Samaya Nissanke

The first detection of a binary neutron star merger through gravitational waves and photons marked the dawn of multi-messenger astronomy with gravitational waves, and it greatly increased our insight in different fields of astrophysics and…

High Energy Astrophysical Phenomena · Physics 2021-07-01 Stefano Ascenzi , Gor Oganesyan , Marica Branchesi , Riccardo Ciolfi

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

The merger of binary neutron-stars systems combines in a single process: extreme gravity, copious emission of gravitational waves, complex microphysics, and electromagnetic processes that can lead to astrophysical signatures observable at…

General Relativity and Quantum Cosmology · Physics 2018-02-21 Luca Baiotti , Luciano Rezzolla

Binary neutron stars merger (NS$^2$M) at cosmological distances is probably the only $\gamma$-ray bursts model based on an independently observed phenomenon which is known to be taking place at a comparable rate. We describe this model, its…

Astrophysics · Physics 2015-06-24 T. Piran