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相关论文: The host galaxies of double compact objects mergin…

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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

Characterizing the properties of the host galaxies of merging compact objects provides essential clues to interpret current and future gravitational-wave detections. Here, we investigate the stellar mass, star formation rate (SFR),…

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

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

Six gravitational wave events have been reported by the LIGO-Virgo collaboration (LVC), five of them associated with black hole binary (BHB) mergers and one with a double neutron star (DNS) merger, while the coalescence of a black…

高能天体物理现象 · 物理学 2019-05-22 Nicola Giacobbo , Michela Mapelli

Compact object mergers are possible progenitors of short bursts. We analyze properties of compact object mergers using the StarTrack population synthesis code, and find that the double neutron star population is dominated by short lived…

天体物理学 · 物理学 2007-05-23 T. Bulik , K. Belczynski

Young star clusters are likely the most common birthplace of massive stars across cosmic time and influence the formation of compact binaries in several ways. Here, we simulate the formation of black hole -- neutron star binaries (BHNSs) in…

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 next generation ground-based gravitational wave interferometers will possibly observe mergers of binary black holes (BBHs) and binary neutron stars (BNSs) to redshift $z\gtrsim{}10$ and $z\gtrsim{}2$, respectively. Here, we characterize…

高能天体物理现象 · 物理学 2019-05-08 Michela Mapelli , Nicola Giacobbo , Filippo Santoliquido , M. Celeste Artale

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…

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

Nuclear star clusters surrounding supermassive black holes (SMBHs) in galactic nuclei contain large numbers of stars, black holes (BHs) and neutron stars (NSs), a fraction of which are likely to form binaries. These binaries were suggested…

星系天体物理 · 物理学 2019-06-19 Giacomo Fragione , Evgeni Grishin , Nathan W. C. Leigh , Hagai. B. Perets , Rosalba Perna

Motivated by observational searches for massive black hole (MBH) pairs at kiloparsec separations we develop a semi-analytic model to describe their orbital evolution under the influence of stellar and gaseous dynamical friction (DF). The…

星系天体物理 · 物理学 2021-08-05 Kunyang Li , Tamara Bogdanovic , David R. Ballantyne

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…

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

Galaxy mergers are common processes in the Universe. As a large fraction of galaxies hosts at their centres a central supermassive black hole (SMBH), mergers can lead to the formation of a supermassive black hole binary (SMBHB). The…

星系天体物理 · 物理学 2023-04-05 Alessandra Mastrobuono-Battisti , Go Ogiya , Oliver Hahn , Mathias Schultheis

Supermassive black holes (SMBHs) are a ubiquitous component of the nuclei of galaxies. It is normally assumed that, following the merger of two massive galaxies, a SMBH binary will form, shrink due to stellar or gas dynamical processes and…

天体物理学 · 物理学 2007-07-14 Lucio Mayer , Stelios Kazantzidis , Piero Madau , Monica Colpi , Thomas Quinn , James Wadsley

Nuclear star clusters that surround supermassive black holes (SMBHs) in galactic nuclei are thought to contain large numbers of black holes (BHs) and neutron stars (NSs), a fraction of which form binaries and could merge by Kozai-Lidov…

星系天体物理 · 物理学 2019-08-02 Giacomo Fragione , Nathan Leigh , Rosalba Perna

Young star clusters are the most common birth-place of massive stars and are dynamically active environments. Here, we study the formation of black holes (BHs) and binary black holes (BBHs) in young star clusters, by means of 6000 N-body…

Compact object mergers are one of the favorite models of GRBs. It has been noted that in opposition to the collapsars, compact object mergers do not necessarily take place in the host galaxies, and may travel outside of them. With the…

天体物理学 · 物理学 2016-08-30 Krzysztof Belczynski , Tomasz Bulik , Wojciech Zbijewski
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