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Current observations of double neutron stars provide us with a wealth of information that we can use to investigate their evolutionary history and the physical conditions of neutron star formation. Understanding this history and formation…

Astrophysics · Physics 2008-11-26 V. Kalogera , K. Belczynski , C. Kim , R. O'Shaughnessy , B. Willems

The discovery of the highly relativistic neutron star (NS) binary (in which both NS's are pulsars) not only increases the estimated merging rate for the two NS's by a large factor, but also adds the missing link in the double helium star…

Astrophysics · Physics 2007-05-23 H. A. Bethe , G. E. Brown , C. -H. Lee

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

Numerical relativity is the most promising tool for theoretically modeling the inspiral and coalescence of neutron star and black hole binaries, which, in turn, are among the most promising sources of gravitational radiation for future…

General Relativity and Quantum Cosmology · Physics 2009-07-09 Thomas W. Baumgarte , Stuart L. Shapiro

We analyze the distinguishability of populations of coalescing binary neutron stars, neutron-star black-hole binaries, and binary black holes, whose gravitational-wave signatures are expected to be observed by the advanced network of…

High Energy Astrophysical Phenomena · Physics 2015-05-05 Ilya Mandel , Carl-Johan Haster , Michal Dominik , Krzysztof Belczynski

The coalescence of close binary systems with two compact objects (neutron stars and black holes) are considered to be promising sources of gravitational waves for the currently built laser interferometers. Here, I review the current…

Astrophysics · Physics 2007-05-23 Vassiliki Kalogera

We suggest that the major fraction of binary mergers, which might provide gravitational wave signal detectable by LIGO/Virgo, emerged from the hidden mirror sector. Mirror particles do not interact with an ordinary observer except…

High Energy Astrophysical Phenomena · Physics 2020-04-03 Revaz Beradze , Merab Gogberashvili , Alexander S. Sakharov

Precise knowledge of the features of several X-ray sources from compact binary sources to galactic nuclei is gradually unveiling the physical parameters of relativistic neutron stars and black holes therein. Recent developments in theory,…

Astrophysics · Physics 2007-05-23 Costantino Sigismondi

I present a brief review of the properties of jets from X-ray binaries, highlighting the disk-jet connection, in which there are strong correlations between X-ray and radio power for black holes and for neutron star in low/hard spectral…

High Energy Astrophysical Phenomena · Physics 2012-04-17 Thomas J. Maccarone

The duration of orbital decay induced by gravitational waves (GWs) is often the bottleneck of the evolutionary phases going from star formation to a merger. We show here that kicks imparted to the newly born compact object during the second…

High Energy Astrophysical Phenomena · Physics 2024-04-03 Paz Beniamini , Tsvi Piran

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

Gravitational waves emitted from the coalescence of neutron star binaries open a new window to probe matter and fundamental physics in unexplored, extreme regimes. To extract information about the supranuclear matter inside neutron stars…

General Relativity and Quantum Cosmology · Physics 2021-03-10 Tim Dietrich , Tanja Hinderer , Anuradha Samajdar

Neutron star (binary neutron star and neutron star - black hole) mergers are believed to produce short-duration gamma-ray bursts. They are also believed to be the dominant source of gravitational waves to be detected by the advanced LIGO…

High Energy Astrophysical Phenomena · Physics 2015-10-14 Chris L. Fryer , Krzysztoff Belczynski , Enrico Ramirez-Ruiz , Stephan Rosswog , Gang Shen , Andrew W. Steiner

While there are a number of proposed formation channels for subsolar mass compact objects, including black holes formed primordially, or neutron stars that form in collapsar disks, there have yet to be any conclusive observations of such…

High Energy Astrophysical Phenomena · Physics 2026-03-27 Maxence Corman , William E. East , Jocelyn S. Read

Mergers of neutron stars with black holes have been suggested as candidates for short gamma-ray bursts. They have also been studied for their potential as gravitational wave sources observable with ground-based detectors. For these…

Astrophysics · Physics 2009-11-11 M. Coleman Miller

The formation histories of compact binary mergers, especially stellar-mass binary-black hole mergers, have recently come under increased scrutiny and revision. In this paper we revisit the question of the dominant formation channel and…

High Energy Astrophysical Phenomena · Physics 2023-08-28 Monica Gallegos-Garcia , Christopher P L Berry , Vicky Kalogera

Within the next few years gravitational waves (GWs) from merging black holes (BHs) and neutron stars (NSs) may be directly detected, making a thorough theoretical understanding of these systems a high priority. As an additional motivation,…

High Energy Astrophysical Phenomena · Physics 2013-03-08 Branson C. Stephens , William E. East , Frans Pretorius

Gamma-ray bursts are characterized by a duration of milliseconds to several minutes in which an enormous amount of radiation is emitted. The origin of these phenomena is still unknown because proposed models fail to explain all the observed…

Astrophysics · Physics 2009-10-30 Simon Portegies Zwart

Close-orbit binaries consisting of two compact objects are a center of attention because of the detection of gravitational-radiation-induced mergers. The creation of close, compact-object binaries involves physical processes that are not…

Astrophysics of Galaxies · Physics 2018-05-25 Rosanne Di Stefano

The first combined detection of gravitational waves and electromagnetic signals from a binary neutron star (BNS) merger in August 2017 (event named GW170817) represents a major landmark for the ongoing investigation on these extraordinary…

High Energy Astrophysical Phenomena · Physics 2020-05-07 Riccardo Ciolfi