English
Related papers

Related papers: Stellar Evolution with Radiative Feedback in AGN D…

200 papers

Stellar-mass binary black holes (BBHs) embedded in active galactic nucleus (AGN) discs offer a promising dynamical channel to produce black-hole mergers that are detectable by LIGO/Virgo. Modeling the interactions between the disc gas and…

High Energy Astrophysical Phenomena · Physics 2023-04-26 Rixin Li , Dong Lai

Energetic feedback by Active Galactic Nuclei (AGNs) plays an important evolutionary role in the regulation of star formation (SF) on galactic scales. However, the effects of this feedback as a function of redshift and galaxy properties such…

There is mounting evidence for the coevolution of galaxies and their embedded massive black holes (MBHs) in a hierarchical structure formation paradigm. To tackle the nonlinear processes of galaxy-MBH interaction, we describe a…

Astrophysics of Galaxies · Physics 2018-03-12 Ji-hoon Kim , John H. Wise , Marcelo A. Alvarez , Tom Abel

Recent advances in our understanding of massive star formation have made clear the important role of protostellar disks in mediating accretion. Here we describe a simple, semi-analytic model for young, deeply embedded, massive accretion…

Astrophysics · Physics 2007-12-07 Kaitlin M. Kratter , Christopher D. Matzner , Mark. R. Krumholz

We describe techniques for incorporating feedback from star formation and black hole accretion into simulations of isolated and merging galaxies. At present, the details of these processes cannot be resolved in simulations on galactic…

Astrophysics · Physics 2009-11-10 Volker Springel , Tiziana Di Matteo , Lars Hernquist

The formation and evolution of galactic disks are complex phenomena, where gas and star dynamics are coupled through star formation and the related feedback. The physical processes are so numerous and intricate that numerical models focus,…

Astrophysics · Physics 2009-11-07 B. Semelin , F. Combes

Remnants of AGN jets and their surrounding cocoons leave colossal magnetohydrodynamic (MHD) fossil structures storing total energies ~10^{60} erg. The original active galacic nucleus (AGN) may be dead but the fossil will retain its stable…

Astrophysics · Physics 2009-11-13 Gregory Benford , R. J. Protheroe

Binary black holes embedded within the accretion disks that fuel active galactic nuclei (AGN) are promising progenitors for the source of gravitational wave events detected by LIGO/VIRGO. Several recent studies have shown that when these…

High Energy Astrophysical Phenomena · Physics 2023-12-19 Josh Calcino , Adam M. Dempsey , Alexander J. Dittmann , Hui Li

Active galactic nuclei (AGN) are accreting supermassive black holes co-evolving with their host galaxies through a complex interplay of feeding and feedback. In this chapter, we first discuss AGN fuelling in galaxies, both in interacting…

Astrophysics of Galaxies · Physics 2023-08-02 Pedro R. Capelo , Chiara Feruglio , Ryan C. Hickox , Francesco Tombesi

Growing observational evidence confirms the existence of massive black holes ($M_{BH} \sim 10^9 M_{\odot}$), accreting at rates close to the Eddington limit, at very high redshifts ($z \gtrsim 6-7$) in the early Universe. Recent…

Astrophysics of Galaxies · Physics 2019-10-02 W. Ishibashi

Black hole feedback plays a central role in shaping the circumgalactic medium (CGM) of elliptical galaxies. We systematically study the impact of plasma physics on the evolution of ellipticals by performing three-dimensional non-ideal…

Astrophysics of Galaxies · Physics 2020-03-04 Chaoran Wang , Mateusz Ruszkowski , H. -Y. Karen Yang

Based on our previous modeling of AGN feedback in isolated elliptical galaxies (Gan et al. 2014) using the MACER (Massive AGN Controlled Ellipticals Resolved) code, we extend and improve the model to include rotation, to limit star…

Astrophysics of Galaxies · Physics 2019-02-27 Zhaoming Gan , Luca Ciotti , Jeremiah P. Ostriker , Feng Yuan

Supernova (SN) shocks that originate from stars on orbits embedded in dense active galactic nuclei (AGN) accretion disks evolve differently from those that occur in the interstellar medium. We aim to assess how shocks evolve in this dense…

High Energy Astrophysical Phenomena · Physics 2026-04-01 Harrison E. Cook , Wladimir Lyra , Mordecai-Mark Mac Low , K. E. Saavik Ford , Barry McKernan

We explore the evolution of supermassive black holes (SMBH) centered in a circumnuclear disk (CND) as a function of the mass supply from the host galaxy and considering different star formation laws, which may give rise to a self-regulation…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Stephanie Wutschik , Dominik R. G. Schleicher , Thomas S. Palmer

Growing supermassive black holes (Active Galactic Nuclei; AGN) release energy with the potential to alter their host galaxies and larger-scale environment; a process named "AGN feedback". Feedback is a required component of galaxy formation…

Astrophysics of Galaxies · Physics 2024-04-15 Chris M. Harrison , Cristina Ramos Almeida

While magnetic fields have long been considered to be important for the evolution of magnetic non-degenerate stars and compact stars, it has become clear in recent years that actually all of the stars are deeply affected. This is…

Solar and Stellar Astrophysics · Physics 2021-02-03 Koh Takahashi , Norbert Langer

Recent observations have found extended multi-phase gas in a significant fraction of massive elliptical galaxies. We perform high-resolution three-dimensional hydrodynamical simulations of two idealized elliptical galaxies -- one…

Astrophysics of Galaxies · Physics 2018-11-07 Chaoran Wang , Yuan Li , Mateusz Ruszkowski

Using several variants of the cosmological Simba simulations, we investigate the impact of different feedback prescriptions on the cosmic star formation history. Adopting a global-to-local approach, we link signatures seen in global…

Astrophysics of Galaxies · Physics 2024-04-12 Lucie Scharré , Daniele Sorini , Romeel Davé

We calculate infrared spectral energy distributions (SEDs) from simulations of major galaxy mergers and study the effect of AGN and starburst driven feedback on the evolution of the SED as a function of time. We use a self-consistent…

Observations have shown that the Eddington ratios (the ratio of the bolometric luminosity to the Eddington luminosity) in QSOs/active galactic nuclei (AGNs) cover a wide range. In this paper we connect the demography of AGNs obtained by the…

Astrophysics · Physics 2009-11-10 Qingjuan Yu , Youjun Lu , Guinevere Kauffmann