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相关论文: Investigating the Cosmological Rate of Compact Obj…

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We evaluate the redshift distribution of binary black hole (BBH), black hole - neutron star binary (BHNS) and binary neutron star (BNS) mergers, exploring the main sources of uncertainty: star formation rate (SFR) density, metallicity…

高能天体物理现象 · 物理学 2021-02-12 Filippo Santoliquido , Michela Mapelli , Nicola Giacobbo , Yann Bouffanais , M. Celeste Artale

Next generation ground-based gravitational-wave detectors will observe binary black hole (BBH) mergers up to redshift $z\gtrsim{}10$, probing the evolution of compact binary (CB) mergers across cosmic time. Here, we present a new…

We explore the ability of gravitational-wave detectors to extract the redshift distribution of binary black hole (BBH) mergers. The evolution of the merger rate across redshifts $0 < z \lesssim 1$ is directly tied to the formation and…

高能天体物理现象 · 物理学 2018-08-23 Maya Fishbach , Daniel E. Holz , Will M. Farr

Mergers of black hole-neutron star (BHNS) binaries have now been observed by GW detectors with the recent announcement of GW200105 and GW200115. Such observations not only provide confirmation that these systems exist, but will also give…

Making the most of the rapidly increasing population of gravitational-wave detections of black hole (BH) and neutron star (NS) mergers requires comparing observations with population synthesis predictions. In this work we investigate the…

Gravitational-wave detectors are now making it possible to investigate how the merger rate of binary black holes (BBHs) evolves with redshift. In this study, we examine whether the BBH merger rate of isolated binaries deviates from a scaled…

高能天体物理现象 · 物理学 2024-05-06 Adam Boesky , Floor S. Broekgaarden , Edo Berger

The development of advanced gravitational wave (GW) observatories, such as Advanced LIGO and Advanced Virgo, provides impetus to refine theoretical predictions for what these instruments might detect. In particular, with the range…

We investigate the properties of the host galaxies of compact binary mergers across cosmic time, by means of population-synthesis simulations combined with galaxy catalogues from the EAGLE suite. We analyze the merger rate per galaxy of…

星系天体物理 · 物理学 2020-01-08 M. Celeste Artale , Michela Mapelli , Yann Bouffanais , Nicola Giacobbo , Mario Spera , Mario Pasquato

Next-generation gravitational wave detectors are expected to detect millions of compact binary mergers across cosmological distances. The features of the mass distribution of these mergers, combined with gravitational wave distance…

宇宙学与河外天体物理 · 物理学 2025-05-30 Soumendra Kishore Roy , Lieke A. C. van Son , Anarya Ray , Will M. Farr

The merger rate density evolution of binary compact objects and the properties of their host galaxies carry crucial information to understand the sources of gravitational waves. Here, we present galaxyRate, a new code that estimates the…

高能天体物理现象 · 物理学 2022-09-29 Filippo Santoliquido , Michela Mapelli , M. Celeste Artale , Lumen Boco

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…

高能天体物理现象 · 物理学 2021-10-27 Yong Shao , Xiang-Dong Li

Six gravitational wave detections have been reported so far, providing crucial insights on the merger rate of double compact objects. We investigate the cosmic merger rate of double neutron stars (DNSs), neutron star-black hole binaries…

高能天体物理现象 · 物理学 2018-07-04 Michela Mapelli , Nicola Giacobbo

The last decade of observational and theoretical developments in stellar and binary evolution provides an opportunity to incorporate major improvements to the predictions from populations synthesis models. We compute the Galactic merger…

Binary black holes (BBHs) are one of the endpoints of isolated binary evolution, and their mergers a leading channel for gravitational wave events. Here, using the evolutionary code \textsc{StarTrack}, we study the statistical properties of…

高能天体物理现象 · 物理学 2018-04-19 Rosalba Perna , Martyna Chruslinska , Alessandra Corsi , Krzysztof Belczynski

Binary black hole mergers encode information about their environment and the astrophysical processes that led to their formation. Measuring the redshift dependence of their merger rate will help probe the formation and evolution of galaxies…

高能天体物理现象 · 物理学 2020-07-01 Y. Yang , I. Bartos , Z. Haiman , B. Kocsis , S. Márka , H. Tagawa

The population of black holes observed via gravitational waves currently covers the local universe up to a redshift $z\lesssim 1$, for the most massive merging binaries, or $z\lesssim 0.25$ for low-mass BH binaries (BBH). Evolution of the…

广义相对论与量子宇宙学 · 物理学 2025-10-16 Jam Sadiq , Thomas Dent , Ana Lorenzo-Medina

We perform a first study of the impact of varying two components of the initial conditions in binary population synthesis of compact binary mergers - the initial mass function, which is made metallicity- and star formation rate-dependent,…

高能天体物理现象 · 物理学 2024-11-27 L. M. de Sá , L. S. Rocha , A. Bernardo , R. R. A. Bachega , J. E. Horvath

Gravitational-wave detectors are unveiling a population of binary black hole (BBH) mergers out to redshifts $z \approx 1$, and are starting to constrain how the BBH population evolves with redshift. We present predictions for the redshift…

高能天体物理现象 · 物理学 2024-06-05 Claire S. Ye , Maya Fishbach

I investigate the roles of cluster dynamics and massive binary evolution in producing stellar-remnant binary black hole (BBH) mergers over the cosmic time. To that end, dynamical BBH mergers are obtained from long-term direct N-body…

高能天体物理现象 · 物理学 2022-01-19 Sambaran Banerjee

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,…

太阳与恒星天体物理 · 物理学 2025-08-25 Savannah Cary , Michiko Fujii , Long Wang , Ataru Tanikawa
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