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Understanding the formation and growth of supermassive black holes (SMBHs) at high redshift represents a major challenge for theoretical models. In this work we investigate the early evolution of the first SMBHs by constraining their…

Astrophysics of Galaxies · Physics 2022-01-19 Alessandro Trinca , Raffaella Schneider , Rosa Valiante , Luca Graziani , Luca Zappacosta , Francesco Shankar

We investigate the relation of black hole mass versus host stellar mass and that of mass accretion rate versus star formation rate (SFR) in moderately luminous ($\log L_{\rm bol} \sim 44.5-46.5\ {\rm erg\ s^{-1}}$), X-ray selected…

Astrophysics of Galaxies · Physics 2021-03-24 Kenta Setoguchi , Yoshihiro Ueda , Yoshiki Toba , Masayuki Akiyama

We investigate whether nuclear star clusters and supermassive black holes follow a common set of mass scaling relations with their host galaxy's properties, and hence can be considered to form a single class of central massive object. We…

Cosmology and Nongalactic Astrophysics · Physics 2013-02-11 Nicholas Scott , Alister W. Graham

Gravitational waves (GWs) from the inspiral of compact remnants (CRs) into massive black holes (MBHs) will be observable to cosmological distances. While a CR spirals in, 2-body scattering by field stars may cause it to fall into the MBH…

Astrophysics · Physics 2014-10-13 Clovis Hopman , Tal Alexander

Stellar mass black holes (SMBHs), forming by the core collapse of very massive, rapidly rotating stars, are expected to exhibit a high density accretion disk around them developed from the spinning mantle of the collapsing star. A wide…

High Energy Astrophysical Phenomena · Physics 2013-08-07 Indrani Banerjee , Banibrata Mukhopadhyay

We investigate properties of black hole (BH) binaries formed in globular clusters via dynamical processes, using direct N-body simulations. We pay attention to effects of BH mass function on the total mass and mass ratio distributions of BH…

High Energy Astrophysical Phenomena · Physics 2017-05-12 Dawoo Park , Chunglee Kim , Hyung Mok Lee , Yeong-Bok Bae , Chris Belczynski

Recent observations have detected top-heavy IMFs in dense star forming regions like the Arches cluster. Whether such IMFs also exist in old dense stellar systems like globular clusters is difficult to constrain, because massive stars…

Astrophysics of Galaxies · Physics 2019-11-27 Long Wang

We examine the distribution of masses of black holes in transient low mass X-ray binary systems. A Bayesian analysis suggests that it is probable that six of the seven systems with measured mass functions have black hole masses clustered…

Astrophysics · Physics 2009-10-30 Charles D. Bailyn , Raj K. Jain , Paolo Coppi , Jerome A. Orosz

Super-massive black holes, with masses larger than a million times that of the Sun, appear to inhabit the centers of all massive galaxies. Cosmologically-motivated theories of galaxy formation need feedback from these super-massive black…

Astrophysics of Galaxies · Physics 2018-01-04 Ignacio Martin-Navarro , Jean P. Brodie , Aaron J. Romanowsky , Tomas Ruiz-Lara , Glenn van de Ven

Supermassive black holes (SMBHs) are observed in diverse galaxy populations across time yet a clear understanding of how they coevolve with their hosts has not been reached. Physically-motivated models of SMBH accretion and feedback vary…

Astrophysics of Galaxies · Physics 2024-11-14 Bryan A. Terrazas , James Aird , Alison L. Coil

Coalescing binary black hole (BBH) systems are likely formed via several channels, and it is challenging to understand their formation / evolutionary processes. Some features in the mass function of the primary components ($m_1$), such as…

High Energy Astrophysical Phenomena · Physics 2022-07-04 Yin-Jie Li , Yuan-Zhu Wang , Shao-Peng Tang , Qiang Yuan , Yi-Zhong Fan , Da-Ming Wei

Most galaxies have central massive black holes (BH), and merge with others during their evolution, as strongly suggested by recent observations. Consequently a black hole binary (BHB) emerges. Considering the evolution of the binary when it…

Astrophysics · Physics 2009-11-06 Christian Zier , Peter L. Biermann

Supermassive stars, with masses greater than a million solar masses, are possible progenitors of supermassive black holes in galactic nuclei. Because of their short nuclear burning timescales, such objects can be formed only when matter is…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Mitchell C. Begelman

In this paper, the second in a series of two, we justify two important assumptions on which the result is based that in course of a galaxy merger the slingshot ejection of bound stars is sufficiently efficient to allow a supermassive black…

Astrophysics · Physics 2008-11-26 Christian Zier

Scaling relations between central black hole (BH) mass and host galaxy properties are of fundamental importance to studies of BH and galaxy evolution throughout cosmic time. Here we investigate the relationship between BH mass and host…

Astrophysics of Galaxies · Physics 2015-11-04 Amy E. Reines , Marta Volonteri

The (supermassive black hole mass, $M_\text{BH}$)-(bulge stellar mass, $M_{\rm*,sph}$) relation is, obviously, derived using two quantities. We endeavor to provide accurate values for the latter via detailed multicomponent galaxy…

Astrophysics of Galaxies · Physics 2019-03-12 Benjamin L. Davis , Alister W. Graham , Ewan Cameron

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…

High Energy Astrophysical Phenomena · Physics 2019-05-08 Michela Mapelli , Nicola Giacobbo , Filippo Santoliquido , M. Celeste Artale

Supermassive black holes (SMBHs) and their host galaxies are generally thought to coevolve, so that the SMBH achieves up to about 0.2 to 0.5% of the host galaxy mass in the present day. The radiation emitted from the growing SMBH is…

We study the statistics and cosmic evolution of massive black hole seeds formed during major mergers of gas-rich late-type galaxies. Generalizing the results of the hydro-simulations from Mayer et al. 2010, we envision a scenario in which a…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Silvia Bonoli , Lucio Mayer , Simone Callegari

This is the first paper in a series aimed at modeling the black hole (BH) mass function, from the stellar to the intermediate to the (super)massive regime. In the present work we focus on stellar BHs and provide an ab-initio computation of…