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Related papers: Black Hole - Neutron Star Binary Mergers: The Impa…

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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

We present the first direct comparison of numerical simulations of neutron star-black hole and black hole-black hole mergers in full general relativity. We focus on a configuration with non spinning objects and within the most likely range…

Black hole-neutron star mergers resulting in the disruption of the neutron star and the formation of an accretion disk and/or the ejection of unbound material are prime candidates for the joint detection of gravitational-wave and…

We perform 3D numerical simulations for merger of equal mass binary neutron stars in full general relativity preparing irrotational binary neutron stars in a quasiequilibrium state as initial conditions. Simulations have been carried out…

Astrophysics · Physics 2009-11-06 Masaru Shibata , Koji Uryu

Can one distinguish a binary black hole undergoing a merger from a binary neutron star if the individual compact companions have masses that fall inside the so-called mass gap of $3-5\ M_\odot$? For neutron stars, achieving such masses…

High Energy Astrophysical Phenomena · Physics 2020-02-28 Antonios Tsokaros , Milton Ruiz , Stuart L. Shapiro , Lunan Sun , Kōji Uryū

Compact objects observed via gravitational waves are classified as black holes or neutron stars primarily based on their inferred mass with respect to stellar evolution expectations. However, astrophysical expectations for the lowest mass…

High Energy Astrophysical Phenomena · Physics 2025-10-29 Jacob Golomb , Isaac Legred , Katerina Chatziioannou , Adrian Abac , Tim Dietrich

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

Binary neutron-star mergers will predominantly produce black-hole remnants of mass $\sim 3-4\,M_{\odot}$, thus populating the putative \emph{low mass gap} between neutron stars and stellar-mass black holes. If these low-mass black holes are…

General Relativity and Quantum Cosmology · Physics 2026-01-05 Anuradha Gupta , Davide Gerosa , K. G. Arun , Emanuele Berti , Will Farr , B. S. Sathyaprakash

Observations of gravitational waves and their electromagnetic counterparts may soon uncover the existence of coalescing compact binary systems formed by a stellar-mass black hole and a neutron star. These mergers result in a remnant black…

General Relativity and Quantum Cosmology · Physics 2020-01-31 Francesco Zappa , Sebastiano Bernuzzi , Francesco Pannarale , Michela Mapelli , Nicola Giacobbo

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

Hydrodynamic simulations of the merger of stellar mass black hole - neutron star binaries (BH/NS) are compared with mergers of binary neutron stars (NS/NS). The simulations are Newtonian, but take into account the emission and backreaction…

Astrophysics · Physics 2009-10-31 H. -Th. Janka , Th. Eberl , M. Ruffert , C. L. Fryer

Gravitational wave observations of black hole-neutron star binaries, particularly those where the black hole has a lower mass compared to other observed systems, have the potential to place strong constraints on modifications to general…

General Relativity and Quantum Cosmology · Physics 2024-12-19 Maxence Corman , William E. East

Black hole-neutron star (BHNS) binaries are important sources of gravitational waves for second-generation interferometers, and BHNS mergers are also a proposed engine for short, hard gamma-ray bursts. The behavior of both the spacetime…

General Relativity and Quantum Cosmology · Physics 2013-07-12 Geoffrey Lovelace , Matthew D. Duez , Francois Foucart , Lawrence E. Kidder , Harald P. Pfeiffer , Mark A. Scheel , Bela Szilagyi

Determining the final result of black hole-neutron star mergers, and in particular the amount of matter remaining outside the black hole at late times and its properties, has been one of the main motivations behind the numerical simulation…

High Energy Astrophysical Phenomena · Physics 2012-12-11 Francois Foucart

The gravitational radiation emitted during the merger of a black hole with a neutron star is rather similar to the radiation from the merger of two black holes when the neutron star is not tidally disrupted. When tidal disruption occurs,…

General Relativity and Quantum Cosmology · Physics 2015-10-28 Francesco Pannarale , Emanuele Berti , Koutarou Kyutoku , Benjamin D. Lackey , Masaru Shibata

General relativistic simulations of black hole-neutron star mergers have currently been limited to low-mass black holes (less than 7 solar mass), even though population synthesis models indicate that a majority of mergers might involve more…

General Relativity and Quantum Cosmology · Physics 2012-03-13 Francois Foucart , Matthew D. Duez , Lawrence E. Kidder , Mark A. Scheel , Bela Szilagyi , Saul A. Teukolsky

The gravitational-wave signal from the merger of two neutron stars cannot be easily differentiated from the signal produced by a comparable-mass mixed binary of a neutron star and a black hole. Indeed, both binary types can account for the…

High Energy Astrophysical Phenomena · Physics 2020-04-24 Hsin-Yu Chen , Katerina Chatziioannou

We study the merger of black hole-neutron star (BH-NS) binaries in numerical relativity, focusing on the properties of the remnant disk and the ejecta, varying the mass of compactness of the NS and the mass and spin of the BH. We find that…

High Energy Astrophysical Phenomena · Physics 2024-11-22 Shichuan Chen , Luohan Wang , Kota Hayashi , Kyohei Kawaguchi , Kenta Kiuchi , Masaru Shibata

A model for determining the dimensionless spin parameter and mass of the black hole remnant of black hole-neutron star mergers with arbitrary initial black hole spin angular momentum, binary mass ratio, and neutron star mass and cold…

General Relativity and Quantum Cosmology · Physics 2014-03-11 Francesco Pannarale

Binary black hole mergers are among the most violent events in the Universe, leading to extreme warping of spacetime and copious emission of gravitational radiation. Even though black holes are the most compact objects they are not…

General Relativity and Quantum Cosmology · Physics 2017-07-05 Chad Hanna , Matthew C. Johnson , Luis Lehner
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