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We study the dynamics of a solar-type star orbiting around a black hole binary (BHB) in a nearly coplanar system. We present a novel effect that can prompt a growth and significant oscillations of the eccentricity of the stellar orbit when…

高能天体物理现象 · 物理学 2022-12-21 Bin Liu , Daniel J. D'Orazio , Alejandro Vigna-Gómez , Johan Samsing

We study the dynamics of merging compact binaries near a rotating supermassive black hole (SMBH) in a hierarchical triple configuration. We include various general relativistic effects that couple the inner orbit, the outer orbit and the…

高能天体物理现象 · 物理学 2020-07-22 Bin Liu , Dong Lai

We apply the theory of nonlinear resonance capture to the problem of a black hole binary (BHB) orbiting a supermassive black hole (SMBH) while embedded in the accretion disk of an active galactic nucleus (AGN). If successful, resonance…

高能天体物理现象 · 物理学 2022-04-14 Diego J. Muñoz , Nicholas C. Stone , Cristobal Petrovich , Frederic A. Rasio

We study the long-term orbital evolution of stars around a merging massive or supermassive black-hole (BH) binary, taking into account the general relativistic effect induced by the BH spin. When the BH spin is significant compared to and…

高能天体物理现象 · 物理学 2022-05-02 Bin Liu , Dong Lai

We study the secular dynamics of compact binaries (consisting of white dwarfs, neutron stars or black holes) with tertiary companions in hierarchical triple systems. As the inner binary (with initially negligible eccentricity) undergoes…

高能天体物理现象 · 物理学 2017-06-19 Bin Liu , Dong Lai , Ye-Fei Yuan

Stellar-mass binaries evolving in the vicinity of supermassive black holes (SMBHs) may be common in the universe, either in active galactic nuclei or in other astrophysical environments. Here, we study in detail the resonant excitation of…

广义相对论与量子宇宙学 · 物理学 2026-03-13 João S. Santos , Vitor Cardoso , Alexandru Lupsasca , José Natário , Maarten van de Meent

We consider the evolution of a supermassive black hole binary (SMBHB) surrounded by a retrograde accretion disk. Assuming the disk is exactly in the binary plane and transfers energy and angular momentum to the binary via direct gas…

高能天体物理现象 · 物理学 2015-06-17 Jeremy D. Schnittman , Julian H. Krolik

Planets around binary stars and those in multiplanet systems may experience resonant eccentricity excitation and disruption due to perturbations from a distant stellar companion. This "evection resonance" occurs when the apsidal precession…

地球与行星天体物理 · 物理学 2016-04-27 Wenrui Xu , Dong Lai

Mechanisms have been proposed to enhance the merger rate of stellar mass black hole binaries, such as the Von Zeipel-Lidov-Kozai mechanism (vZLK). However, high inclinations are required in order to greatly excite the eccentricity and to…

高能天体物理现象 · 物理学 2022-10-26 Hareesh Gautham Bhaskar , Gongjie Li , Douglas N. C. Lin

We study the dynamical evolution of eccentric massive black hole binaries (MBHBs) interacting with unbound stars by means of an extensive set of three body scattering experiments. Compared to previous studies, we extend the investigation…

Massive black hole (MBH) binaries in galactic nuclei are one of the leading sources of $\sim$ mHz gravitational waves (GWs) for future missions such as $\rm{\textit{LISA}}$. However, the poor sky localization of GW interferometers will make…

高能天体物理现象 · 物理学 2024-10-18 Omri Reved , Lazar Friedland , Nicholas C. Stone

We construct evolutionary tracks for massive black hole binaries (MBHBs) embedded in a surrounding distribution of stars. The dynamics of the binary is evolved by taking into account the erosion of the central stellar cusp bound to the…

宇宙学与河外天体物理 · 物理学 2011-08-03 A. Sesana

Coalescing supermassive black hole binaries (BHBs) are expected to be the loudest sources of gravitational waves (GWs) in the Universe. Detection rates for ground or space-based detectors based on cosmological simulations and semi-analytic…

Black hole (BH) triples represent one of the astrophysical pathways for BH mergers in the Universe detectable by LIGO and VIRGO. We study the formation of BH triples via binary-binary encounters in dense clusters, showing that one-third of…

高能天体物理现象 · 物理学 2021-07-21 Manuel Arca-Sedda , Gongjie Li , Bence Kocsis

In this letter we study the eccentricity evolution of a massive black hole (MBH) binary (MBHB) embedded in a rotating stellar cusp. Following the observation that stars on counter-rotating (with respect to the MBHB) orbits extract angular…

星系天体物理 · 物理学 2015-05-28 Alberto Sesana , Alessia Gualandris , Massimo Dotti

We study the orbital evolution of black hole (BH) binaries in quadruple systems, where the tertiary binary excites large eccentricity in the BH binary through Lidov-Kozai (LK) oscillations, causing the binary BHs to merge via gravitational…

高能天体物理现象 · 物理学 2018-12-27 Bin Liu , Dong Lai

We study the evolution of the orientation of the orbital plane of massive black hole binaries (BHBs) in rotating stellar systems in which the total angular momentum of the stellar cusp is misaligned with respect to that of the binary. We…

星系天体物理 · 物理学 2015-05-30 Alessia Gualandris , Massimo Dotti , Alberto Sesana

Modeling the late inspiral and merger of supermassive black holes is central to understanding accretion processes and the conditions under which electromagnetic emission accompanies gravitational waves. We use fully general relativistic,…

广义相对论与量子宇宙学 · 物理学 2015-05-27 Tanja Bode , Tamara Bogdanovic , Roland Haas , James Healy , Pablo Laguna , Deirdre Shoemaker

A circumbinary disc around a pair of merging stellar-mass black holes may be shocked and heated during the recoil of the merged hole, causing a near-simultaneous electromagnetic counterpart to the gravitational wave event. The shocks occur…

高能天体物理现象 · 物理学 2018-08-29 Rebecca G. Martin , Chris Nixon , Fu-Guo Xie , Andrew King

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…

高能天体物理现象 · 物理学 2018-08-14 Bin Liu , Dong Lai
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