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Third-generation (3G) gravitational-wave (GW) detectors will be able to observe binary-black-hole mergers (BBHs) up to redshift of $\sim 30$. This gives unprecedented access to the formation and evolution of BBHs throughout cosmic history.…

Cosmology and Nongalactic Astrophysics · Physics 2021-07-14 Ken K. Y. Ng , Salvatore Vitale , Will M. Farr , Carl L. Rodriguez

Third-generation gravitational-wave detectors will observe up to millions of merging binary black holes. With such a vast dataset, stacking events into population analyses will arguably be more important than analyzing single sources. We…

High Energy Astrophysical Phenomena · Physics 2025-03-14 Viola De Renzis , Francesco Iacovelli , Davide Gerosa , Michele Mancarella , Costantino Pacilio

The possible existence of primordial black holes in the stellar mass window has received considerable attention because their mergers may contribute to current and future gravitational-wave detections. Primordial black hole mergers,…

Cosmology and Nongalactic Astrophysics · Physics 2022-07-20 Ken K. Y. Ng , Gabriele Franciolini , Emanuele Berti , Paolo Pani , Antonio Riotto , Salvatore Vitale

We probe the astrophysical gravitational-wave background resulting from compact binary coalescences, focusing on Population III binary black holes. We exploit results of state-of-the-art simulations on the evolution of Population I-II and…

Cosmology and Nongalactic Astrophysics · Physics 2024-09-26 Nikolaos Kouvatsos , Mairi Sakellariadou

We employ the method used by the GW-Universe Toolbox to generate a synthetic catalogue of detection of stellar mass binary black hole (BBH) mergers. We study advanced LIGO (aLIGO) and Einstein Telescope (ET) as two representatives for the…

High Energy Astrophysical Phenomena · Physics 2022-08-03 Shu-Xu Yi , Fiorenzo Stoppa , Gijs Nelemans , Eric Cator

The growing number of binary black hole mergers detected through gravitational waves offers unprecedented insight into their underlying population, yet their astrophysical formation channels remain unresolved. We present a new method to…

General Relativity and Quantum Cosmology · Physics 2025-10-23 William J. Smith , Krystal Ruiz-Rocha , Kelly Holley-Bockelmann , Michela Mapelli , Karan Jani

Using the results of a numerical simulation which follows the evolution, metal enrichment and energy deposition of both Population III and Population II stars, we predict the redshift dependence of the formation rate of black hole remnants…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Stefania Marassi , Raffaella Schneider , Valeria Ferrari

The observations of gravitational waves (GWs) have revealed the existence of black holes (BHs) above $30M_\odot$. A variety of scenarios have been proposed as their origin. Among the scenarios, we consider the population III (Pop~III) star…

High Energy Astrophysical Phenomena · Physics 2024-01-01 Masaki Iwaya , Tomoya Kinugawa , Hideyuki Tagoshi

The coalescence of compact binaries containing neutron stars or black holes is one of the most promising signals for advanced ground-based laser interferometer gravitational-wave detectors, with the first direct detections expected over the…

High Energy Astrophysical Phenomena · Physics 2015-09-02 Simon Stevenson , Frank Ohme , Stephen Fairhurst

Ground-based gravitational-wave (GW) observatories have transformed our view of compact-object mergers, yet their reach still limits a comprehensive reconstruction of the processes that generate these systems. Only next-generation…

One promising way to extract information about stellar astrophysics from gravitational wave catalogs is to compare the catalog to the outputs of stellar population synthesis modeling with varying physical assumptions. The parameter space of…

High Energy Astrophysical Phenomena · Physics 2023-07-05 Kaze W. K. Wong , Katelyn Breivik , Will M. Farr , Rodrigo Luger

The catalog of gravitational-wave events is growing, and so are our hopes of constraining the underlying astrophysics of stellar-mass black-hole mergers by inferring the distributions of, e.g., masses and spins. While conventional analyses…

High Energy Astrophysical Phenomena · Physics 2022-11-15 Matthew Mould , Davide Gerosa , Stephen R. Taylor

With its last observing run, the LIGO, Virgo, and KAGRA collaboration has detected almost one hundred gravitational waves from compact binary coalescences. A common approach to studying the population properties of the observed binaries is…

General Relativity and Quantum Cosmology · Physics 2022-10-12 Simone Mastrogiovanni , Astrid Lamberts , Rahul Srinivasan , Tristan Bruel , Nelson Christensen

From catalogs of gravitational-wave transients, the population-level properties of their sources and the formation channels of merging compact binaries can be constrained. However, astrophysical conclusions can be biased by misspecification…

General Relativity and Quantum Cosmology · Physics 2025-10-08 Noah E. Wolfe , Matthew Mould , Jack Heinzel , Salvatore Vitale

We investigate detection prospects of the gravitational-wave background (GWB) that originates from the merging of compact objects formed by the collapse of population III stars. Younger population I/II stars lead to a GWB in the LIGO/Virgo…

Solar and Stellar Astrophysics · Physics 2022-11-30 Katarina Martinovic , Carole Perigois , Tania Regimbau , Mairi Sakellariadou

We study the contribution of binary black hole (BH-BH) mergers from the first, metal-free stars in the Universe (Pop III) to gravitational wave detection rates. Our study combines initial conditions for the formation of Pop III stars based…

High Energy Astrophysical Phenomena · Physics 2017-09-06 K. Belczynski , T. Ryu , R. Perna , E. Berti , T. L. Tanaka , T. Bulik

In the theories with extra dimensions, gravitational waves can leak into extra dimensions, resulting in a reduction in the amplitude of the observed gravitational waves. Such an effect modifies the standard luminosity distance of…

General Relativity and Quantum Cosmology · Physics 2026-03-10 Xu-Jie Zhu , Ji-Yu Song , Tao Zhu , Xin Zhang

We propose a method for confirmation of the existence of Population III (Pop III) stars with massive black hole binaries as GW150914 in gravitational wave (GW) observation. When we get enough number of events, we want to determine which…

High Energy Astrophysical Phenomena · Physics 2017-09-26 Akinobu Miyamoto , Tomoya Kinugawa , Takashi Nakamura , Nobuyuki Kanda

Gravitational waves detected by advanced ground-based detectors have allowed studying the universe in a way which is fully complementary to electromagnetic observations. As more sources are detected, it will be possible to measure…

General Relativity and Quantum Cosmology · Physics 2018-07-25 Salvatore Vitale , Chris Whittle

The population of binary black hole mergers observed in gravitational waves, together with astrophysical simulations, can help us to understand the properties of the progenitors and the binary formation mechanisms in different astrophysical…

High Energy Astrophysical Phenomena · Physics 2023-12-12 Ken K. Y. Ng , Konstantinos Kritos , Andrea Antonelli , Roberto Cotesta , Emanuele Berti
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