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Related papers: Evolution and final fate of massive post-common-en…

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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…

High Energy Astrophysical Phenomena · Physics 2018-08-29 Rebecca G. Martin , Chris Nixon , Fu-Guo Xie , Andrew King

Planets and other low-mass binary companions to stars face a variety of potential fates as their host stars move off the main sequence and grow to subgiants and giants. Stellar mass loss tends to make orbits expand, and tidal torques tend…

Earth and Planetary Astrophysics · Physics 2015-03-20 David S. Spiegel

A common-envelope (CE) phase occurs when a star engulfs its companion and is widely considered the primary channel for producing Luminous Red Novae (LRNe). In this study, we combine binary-population synthesis with stellar-evolution…

Studying compact-object binary mergers in star clusters is crucial for understanding stellar evolution and dynamical interactions in galaxies. Open clusters in particular are more abundant over cosmic time than globular clusters, however,…

Solar and Stellar Astrophysics · Physics 2025-08-25 Savannah Cary , Michiko Fujii , Long Wang , Ataru Tanikawa

As gravitational wave detectors improve, observations of black hole (BH) mergers will provide the joint distribution of their masses and spins. This will be a critical benchmark to validate formation scenarios. Merging binary BHs formed…

High Energy Astrophysical Phenomena · Physics 2024-11-27 Pablo Marchant , Philipp Podsiadlowski , Ilya Mandel

It was recently demonstrated that contact binaries occur in globular clusters (GCs) only immediately below turn-off point and in the region of blue straggler stars (BSs). In addition, observations indicate that at least a significant…

Solar and Stellar Astrophysics · Physics 2015-05-13 Kazimierz Stepien , Marcin Kiraga

Information about the last stages of a binary neutron star inspiral and the final merger can be extracted from quasi-equilibrium configurations and dynamical evolutions. In this article, we construct quasi-equilibrium configurations for…

The observational properties of core-collapse supernovae (CC-SNe) are shaped by the envelopes of their progenitors. In massive binary systems, mass-transfer alters the pre-SN structures compared to single stars, leading to a diversity in SN…

Solar and Stellar Astrophysics · Physics 2026-02-11 Andrea Ercolino , Harim Jin , Norbert Langer , Avishay Gal-Yam , Abel Schootemeijer , Caroline Mannes

Massive binaries are vital sources of various transient processes, including gravitational-wave mergers. However, large uncertainties in the evolution of massive stars, both physical and numerical, present a major challenge to the…

Solar and Stellar Astrophysics · Physics 2023-08-09 Poojan Agrawal , Jarrod Hurley , Simon Stevenson , Carl L. Rodriguez , Dorottya Szecsi , Alex Kemp

Black hole-neutron star (BHNS) binaries are amongst promising candidates for the joint detection of electromagnetic (EM) signals with gravitational waves (GWs) and are expected to be detected in the near future. Here we study the effect of…

High Energy Astrophysical Phenomena · Physics 2021-12-22 Mukul Bhattacharya , Pawan Kumar , George Smoot

Binary supermassive black holes (SMBH) are expected to form naturally during galaxy mergers. After the dynamical friction phase, when the two SMBHs become gravitationally bound to each other, and a brief stage of initial rapid hardening,…

Astrophysics of Galaxies · Physics 2019-01-30 Kirill Lezhnin , Eugene Vasiliev

Three-dimensional simulations for the merger of binary neutron stars (BNSs) are performed in the framework of full general relativity. We pay particular attention to the black hole (BH) formation case and to the resulting mass of the…

Astrophysics · Physics 2009-11-11 Masaru Shibata , Keisuke Taniguchi

Stellar-mass binary black holes (BBHs) embedded in active galactic nucleus (AGN) discs are possible progenitors of black-hole mergers detected in gravitational waves by LIGO/VIRGO. To better understand the hydrodynamical evolution of BBHs…

High Energy Astrophysical Phenomena · Physics 2022-09-21 Rixin Li , Dong Lai

Mergers of compact binaries, such as binary neutron stars (BNSs), neutron star-black hole binaries (NSBHs), and binary black holes (BBHs), are expected to be the best candidates for the sources of gravitational waves (GWs) and the leading…

High Energy Astrophysical Phenomena · Physics 2018-02-07 Wei-Wei Tan , Xi-Long Fan , F. Y. Wang

Stellar mergers lead to diverse phenomena: rejuvenated blue stragglers, magnetised and peculiar stars, transients and nebulae. Using a grid of about 6000 detailed 1D binary evolution models (initial component masses of…

Solar and Stellar Astrophysics · Physics 2023-11-22 Jan Henneco , Fabian R. N. Schneider , Eva Laplace

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

In this first in a series of papers related to long-period post-common-envelope (CE) binaries, we investigated whether extra energy is required or not to explain the currently known post-CE binaries with sufficiently long orbital periods…

Solar and Stellar Astrophysics · Physics 2024-06-05 Diogo Belloni , Monica Zorotovic , Matthias R. Schreiber , Steven G. Parsons , Maxwell Moe , James A. Garbutt

Massive binary evolution models are needed to predict massive star populations in star forming galaxies, the supernova diversity, and the number and properties of gravitational wave sources. Such models are often computed using so called…

Solar and Stellar Astrophysics · Physics 2024-10-23 Christoph Schürmann , Norbert Langer , Joana A. Kramer , Pablo Marchant , Chen Wang , Koushik Sen

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…

Cosmology and Nongalactic Astrophysics · Physics 2011-08-03 A. Sesana

Events GW170817 and GRB 170817A provide the best confirmation so far that compact binary mergers where at least one of the companions is a neutron star (NS) can be the progenitors of short gamma-ray bursts (sGRBs). An open question for…

High Energy Astrophysical Phenomena · Physics 2019-04-19 Milton Ruiz , Antonios Tsokaros , Vasileios Paschalidis , Stuart L. Shapiro