Formation Channels of Single and Binary Stellar-Mass Black Holes

Mapelli, Michela

doi:10.1007/978-981-16-4306-4_16

Cited by 3 publications

(5 citation statements)

References 346 publications

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“…In this case, it will leave the main sequence stage earlier. At that time, its radius began to expand, even hundreds of times, becoming a giant star with a helium core and a large hydrogen envelope [9].…”

Section: Resultsmentioning

confidence: 99%

“…Here, the Roche lobe is an approximate teardrop-shaped region around a star in a binary system. Subsequently, when the other star in the binary system also begins to leave the main sequence star, the black hole and the helium core (which is formed by the second star) of the binary system begin to spiral in [9]. Here, the two channels start to appear different, and the system is in a phase called the common envelope, where the two objects are contained in the gas.…”

Section: Resultsmentioning

confidence: 99%

“…Otherwise, a new binary stellar system that is made up of one black hole and one stripped naked helium star is formed. If the bare helium star is big enough to collapse into a black hole, then the system becomes a binary black hole system, which may merge within Hubble time if their orbital separation is very close [9]. Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Firstly, the dynamics of the binary black hole cannot be simulated correctly as the mass and spin of the black hole from stellar evolution are not known. In fact, there is currently no way to perform dynamic simulation calculations at an appropriate cost [9]. These factors both hinder the understanding of the dynamics associated with binary black holes.…”

Section: Remaining Questionsmentioning

confidence: 99%

See 3 more Smart Citations

Two of the Binary Stellar Evolution Formation Channels

Yin¹

2023

HSET

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More and more exo-stellar systems are being discovered step-by-step, including a type of system that is made up of two stellar, which is the binary stellar system, and the evolution of the binary stellar systems is also a field in the spotlight. Furthermore, there were gradually increasingly gravitational waves being detected in recent years, which led to more developed models of outer space objects. Following the topic of Binary Stellar Evolution Formation Channels, this article majorly discusses the models of binary stellar evolution formation channels as the results of the analysis of the data of gravitational wave detections. Accompanying, this study also included the analysis of gravitational wave detecting methods and results. Not surprisingly, there are still many remaining problems, thus the relevant currently remaining problems and the related future directions are also presented in the article. To sum up, this paper aims to give more specific explanations of the binary stellar evolution and sheds light on guiding further exploration for this topic.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Remaining Questionsmentioning

confidence: 99%

See 2 more Smart Citations

Two of the Binary Stellar Evolution Formation Channels

Yin¹

2023

HSET

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“…In particular, a redshift‐dependent mass spectrum can be present due to the BHs progenitors' metallicity and distribution of time delays between the BBH formation and its merger (see ref. [55] for a review). With current detections of GWs, there is no evidence that the mass spectrum of BBHs is evolving in redshift [ 11,56 ] and current H 0 measures are provided with redshift‐independent mass models (see later).…”

Section: Methods For Gw Cosmologymentioning

confidence: 99%

Cosmology with Gravitational Waves: A Review

et al. 2022

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Standard sirens have been the central paradigm in gravitational‐wave cosmology so far. From the gravitational wave signature of compact star binaries, it is possible to measure the luminosity distance of the source directly, and if additional information on the source redshift is provided, a measurement of the cosmological expansion can be performed. This review article discusses several methodologies that have been proposed to use gravitational waves for cosmological studies. Methods that use only gravitational‐wave signals and methods that use gravitational waves in conjunction with additional observations such as electromagnetic counterparts and galaxy catalogs will be discussed. The review also discusses the most recent results on gravitational‐wave cosmology, starting from the binary neutron star merger GW170817 and its electromagnetic counterpart and finishing with the population of binary black holes, observed with the third Gravitational‐wave Transient Catalog GWTC–3.

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Dynamical Disruption Timescales and Chaotic Behavior of Hierarchical Triple Systems

Hayashi

Trani

Suto

2022

ApJ

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We examine the stability of hierarchical triple systems using direct N-body simulations without adopting a secular perturbation assumption. We estimate their disruption timescales in addition to the mere stable/unstable criterion, with particular attention to the mutual inclination between the inner and outer orbits. First, we improve the fit to the dynamical stability criterion by Mardling & Aarseth widely adopted in the previous literature. Especially, we find that that the stability boundary is very sensitive to the mutual inclination; coplanar retrograde triples and orthogonal triples are much more stable and unstable, respectively, than coplanar prograde triples. Next, we estimate the disruption timescales of triples satisfying the stability condition up to 109 times the inner orbital period. The timescales follow the scaling predicted by Mushkin & Katz, especially at high e out where their random walk model is most valid. We obtain an improved empirical fit to the disruption timescales, which indicates that the coplanar retrograde triples are significantly more stable than the previous prediction. We furthermore find that the dependence on the mutual inclination can be explained by the energy transfer model based on a parabolic encounter approximation. We also show that the disruption timescales of triples are highly sensitive to tiny changes of the initial parameters, reflecting the genuine chaotic nature of the dynamics of those systems.

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Formation Channels of Single and Binary Stellar-Mass Black Holes

Cited by 3 publications

References 346 publications

Two of the Binary Stellar Evolution Formation Channels

Two of the Binary Stellar Evolution Formation Channels

Cosmology with Gravitational Waves: A Review

Dynamical Disruption Timescales and Chaotic Behavior of Hierarchical Triple Systems

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