English
Related papers

Related papers: Continuous-Time Modelling of Black Hole Binary Evo…

200 papers

The recent discovery of the binary black hole (BBH) merger event GW190521, between two black holes (BHs) of $\approx100M_\odot$, and as well as other massive BBH merger events involving BHs within the pair-instability supernova (PSN) mass…

High Energy Astrophysical Phenomena · Physics 2022-09-07 Sambaran Banerjee

We perform several black-hole binary evolutions using fully nonlinear numerical relativity techniques at separations large enough that low-order post-Newtonian expansions are expected to be accurate. As a case study, we evolve an equal-mass…

General Relativity and Quantum Cosmology · Physics 2013-07-04 Carlos O. Lousto , Yosef Zlochower

We investigated the evolution of the black hole binary formed by the merging of two galaxies each containing a central massive black hole. Our main goal here is to determine if the black hole binary can merge through the hardening by…

Astrophysics · Physics 2009-10-28 Junichiro Makino

We introduce a gravitational waveform inversion strategy that discovers mechanical models of binary black hole (BBH) systems. We show that only a single time series of (possibly noisy) waveform data is necessary to construct the equations…

General Relativity and Quantum Cosmology · Physics 2021-11-10 Brendan Keith , Akshay Khadse , Scott E. Field

We study the formation of primordial black holes (PBHs) and stochastic gravitational waves background (SGWB) produced by the supercooled radion phase transition (PT) in warped extra-dimension models solving the gauge hierarchy problem. We…

High Energy Physics - Phenomenology · Physics 2025-07-10 Anish Ghoshal , Eugenio Megias , Germano Nardini , Mariano Quiros

[Abridged] In galactic nuclei with sufficiently short relaxation times, binary supermassive black holes can evolve beyond their stalling radii via continued interaction with stars. We study this "collisional" evolutionary regime using both…

Astrophysics · Physics 2009-11-13 David Merritt , Seppo Mikkola , Andras Szell

Making use of a new N-body model to describe the evolution of a moderate-size globular cluster we investigate the characteristics of the population of black holes within such a cluster. This model reaches core-collapse and achieves a peak…

Astrophysics of Galaxies · Physics 2016-09-07 Jarrod R. Hurley , Anna C. Sippel , Christopher A. Tout , Sverre J. Aarseth

The merger-ringdown radiation from a black hole binary merger is accurately modeled by a sum of linear quasinormal modes (QNMs). Recently, a non-QNM ``direct wave" component of the radiation, associated with prompt emission from a plunging…

General Relativity and Quantum Cosmology · Physics 2026-03-17 Anuj Kankani , Sean T. McWilliams

The growing database of gravitational-wave (GW) detections with the binary black holes (BHs) merging in the distant Universe contains subtle insights into their formation scenarios. One of the puzzling properties of detected GW sources is…

High Energy Astrophysical Phenomena · Physics 2024-09-25 Aleksandra Olejak , Jakub Klencki , Xiao-Tian Xu , Chen Wang , Krzysztof Belczynski , Jean-Pierre Lasota

Massive black-hole binaries (MBHBs) are thought to be the main source of gravitational waves (GWs) in the low-frequency domain surveyed by ongoing and forthcoming Pulsar Timing Array campaigns and future space-borne missions, such as {\it…

Astrophysics of Galaxies · Physics 2016-09-07 Matteo Bonetti , Francesco Haardt , Alberto Sesana , Enrico Barausse

We perform a systematic study of merging black hole (BH) binaries with compact star (CS) companions, including black hole--white dwarf (BH--WD), black hole--neutron star (BH--NS) and black hole--black hole (BH--BH) systems. Previous studies…

High Energy Astrophysical Phenomena · Physics 2021-10-27 Yong Shao , Xiang-Dong Li

Black hole (BH) mergers driven by gravitational perturbations of external companions constitute an important class of formation channels for merging BH binaries detected by LIGO. We have studied the orbital and spin evolution of binary BHs…

High Energy Astrophysical Phenomena · Physics 2018-08-14 Bin Liu , Dong Lai

We study the merger of black hole (BH)-neutron star (NS) binaries with a variety of BH spins aligned or anti-aligned with the orbital angular momentum, and with the mass ratio in the range MBH/MNS = 2--5, where MBH and MNS are the mass of…

High Energy Astrophysical Phenomena · Physics 2017-12-27 Koutarou Kyutoku , Hirotada Okawa , Masaru Shibata , Keisuke Taniguchi

In numerical evolutions of binary black holes (BBH) it is desirable to easily control the orbital eccentricity of the BBH, and the number of orbits completed by the binary through merger. This paper presents fitting formulae that allow to…

General Relativity and Quantum Cosmology · Physics 2012-10-11 Abdul H. Mroué , Harald P. Pfeiffer

We study the dynamics of stellar-mass black holes (BH) in star clusters with particular attention to the formation of BH-BH binaries, which are interesting as sources of gravitational waves (GW). We examine the properties of these BH-BH…

Solar and Stellar Astrophysics · Physics 2015-05-14 Sambaran Banerjee , Holger Baumgardt , Pavel Kroupa

We study the dynamical signatures of black hole (BH) and neutron star (NS) binary mergers via Lidov-Kozai oscillations induced by tertiary companions in hierarchical triple systems. For each type of binaries (BH-BH and BH-NS), we explore a…

High Energy Astrophysical Phenomena · Physics 2019-08-14 Bin Liu , Dong Lai , Yi-Han Wang

We perform population synthesis of massive binaries to study the mergers of neutron stars (NSs) and black holes (BHs) with the cores of their giant secondaries during common envelope evolution (CEE). We use different values of the…

High Energy Astrophysical Phenomena · Physics 2023-06-08 Aldana Grichener

In this paper, we study the formation and dynamical evolution of black hole-black hole (BH-BH) binaries in young star clusters (YSCs), by means of N-body simulations. The simulations include metallicity-dependent recipes for stellar…

Astrophysics of Galaxies · Physics 2015-06-19 Brunetto Marco Ziosi , Michela Mapelli , Marica Branchesi , Giuseppe Tormen

While supermassive black-hole (SMBH)-binaries are not the only viable source for the low-frequency gravitational wave background (GWB) signal evidenced by the most recent pulsar timing array (PTA) data sets, they are expected to be the most…

Coalescing binaries of neutron stars (NS) and black holes (BH) are one of the most important sources of gravitational waves for the upcoming network of ground based detectors. Detection and extraction of astrophysical information from…

General Relativity and Quantum Cosmology · Physics 2016-08-08 Prayush Kumar , Kevin Barkett , Swetha Bhagwat , Nousha Afshari , Duncan A. Brown , Geoffrey Lovelace , Mark A. Scheel , Béla Szilágyi
‹ Prev 1 4 5 6 7 8 10 Next ›