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相关论文: Host galaxies of merging compact objects: mass, st…

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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 investigate the host galaxies of compact objects merging in the local Universe, by combining the results of binary population-synthesis simulations with the Illustris cosmological box. Double neutron stars (DNSs) merging in the local…

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

We explore the host galaxies of compact-object binaries (black hole--black hole binaries, BHBs; neutron star--black hole binaries, NSBHs; double-neutron stars; DNSs) across cosmic time, by means of population-synthesis simulations combined…

高能天体物理现象 · 物理学 2019-09-25 Mattia Toffano , Michela Mapelli , Nicola Giacobbo , Maria Celeste Artale , Giancarlo Ghirlanda

We explore the connection between the gravitational wave (GW) merger rates of stellar-mass binary black holes (BBH) and galaxy properties. We do this by generating populations of stars using the binary population synthesis code COMPAS and…

星系天体物理 · 物理学 2023-06-28 Liana Rauf , Cullan Howlett , Tamara M. Davis , Claudia D. P. Lagos

In the upcoming gravitational wave (GW) observing runs, identifying host galaxies is crucial as it provides essential redshift information and enables the use of GW events as standard sirens. However, pinpointing host galaxies remains…

高能天体物理现象 · 物理学 2024-08-05 Mankeun Jeong , Myungshin Im

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…

We investigate the properties of the host galaxies of compact binary mergers across cosmic time. To this end, we combine population synthesis simulations together with galaxy catalogues from the hydrodynamical cosmological simulation EAGLE…

Using a population synthesis approach, we compute the total merger rate in the local Universe for double neutron stars, double black holes, and black hole -- neutron star binaries. These compact binaries are the prime source candidates for…

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

Gravitational waves produced from the merger of binary neutron stars (BNSs) are accompanied by electromagnetic counterparts, making it possible to identify the associated host galaxy. We explore how properties of the host galaxies relate to…

星系天体物理 · 物理学 2020-12-16 Susmita Adhikari , Maya Fishbach , Daniel E. Holz , Risa H. Wechsler , Zhanpei Fang

We investigate the merging rates of compact binaries in galaxies, and the related detection rate of gravitational wave (GW) events with AdvLIGO/Virgo and with the Einstein Telescope. To this purpose, we rely on three basic ingredients: (i)…

星系天体物理 · 物理学 2019-09-04 L. Boco , A. Lapi , S. Goswami , F. Perrotta , C. Baccigalupi , L. Danese

Finding the host galaxies of stellar-mass compact binary mergers will open a new window for studying their formation histories and measuring key cosmological parameters, such as the Hubble constant. To date, only one merger, GW170817, has…

宇宙学与河外天体物理 · 物理学 2026-05-01 Alberto Salvarese , Hsin-Yu Chen , Daniel E. Holz

In this paper, we investigate the properties of binary neutron stars (BNSs) and their mergers by combining population synthesis models for binary stellar evolution (BSE) with cosmological galaxy formation and evolution models. We obtain…

星系天体物理 · 物理学 2021-10-20 Qingbo Chu , Shenghua Yu , Youjun Lu

Advanced LIGO \& Advanced Virgo are detecting a large number of binary stellar origin black hole (BH) mergers. A promising channel for accelerated BH merger lies in active galactic nucleus (AGN) disks of gas around super-masssive black…

高能天体物理现象 · 物理学 2020-10-07 B. McKernan , K. E. S. Ford , R. O'Shaughnessy

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…

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…

Gravitational wave detectors are observing compact object mergers from increasingly far distances, revealing the redshift evolution of the binary black hole (BBH) -- and soon the black hole-neutron star (BHNS) and binary neutron star (BNS)…

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

We present an empirical approach for interpreting gravitational wave signals of binary black hole mergers under the assumption that the underlying black hole population is sourced by remnants of stellar evolution. Using the observed…

星系天体物理 · 物理学 2017-11-08 Oliver D. Elbert , James S. Bullock , Manoj Kaplinghat

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…

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