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Observations indicate that massive galaxies at z~2 are more compact than galaxies of comparable mass at z~0, with effective radii evolving by a factor of ~3-5. This implies that galaxies grow significantly in size but relatively little in…

星系天体物理 · 物理学 2015-06-15 W. Ishibashi , A. C. Fabian , R. E. A. Canning

We present 2D hydrodynamical simulations for the evolution of early-type galaxies containing central massive black holes (MBHs), starting at age 2 Gyr. The code contains accurate and physically consistent radiative and mechanical AGN wind…

星系天体物理 · 物理学 2017-01-25 L. Ciotti , S. Pellegrini , A. Negri , J. P. Ostriker

Feedback processes play a fundamental role in the regulation of the star formation (SF) activity in galaxies and, in particular, in the quenching of early-type galaxies (ETGs) as has been inferred by observational and numerical studies of…

The energy released by Active Galactic Nuclei (AGN) in the form of radiation, winds, or radio plasma jets, is known to impact on the surrounding interstellar medium. The result of these processes, known as AGN (negative) feedback, is…

星系天体物理 · 物理学 2017-12-15 Raffaella Morganti

We show that feedback from active galactic nuclei (AGN) plays an essential role in reproducing the down-sizing phenomena, namely: the colour-magnitude relation; specific star formation rates; and the $\alpha$ enhancement of early type…

星系天体物理 · 物理学 2015-06-23 Philip Taylor , Chiaki Kobayashi

Active galactic nucleus (AGN) feedback is a key ingredient in galaxy evolution, yet its impact on the cold atomic gas reservoir -- the neutral hydrogen (HI) phase -- remains poorly constrained. We present the most extensive spatially…

Understanding how galaxies maintain the inefficiency of star formation with physically self-consistent models is a central problem for galaxy evolution. Although numerous theoretical models have been proposed in recent decades, the debate…

高能天体物理现象 · 物理学 2018-10-24 Ya-Ping Li , Feng Yuan , Houjun Mo , Doosoo Yoon , Zhao-Ming Gan , Luis C. Ho , Bo Wang , Jeremiah P. Ostriker , Luca Ciotti

To investigate the differences in mechanical feedback from radio-loud and radio-quiet Active Galactic Nuclei (AGN) on the host galaxy, we perform 3D AMR hydrodynamic simulations of wide angle, radio-quiet winds with different inclinations…

星系天体物理 · 物理学 2017-07-26 Zachary Dugan , Volker Gaibler , Joseph Silk

The impact of feedback from Active Galactic Nuclei (AGN) on the cosmological evolution of the large scale structure is a long studied problem. However, it is still not well understood how the feedback energy couples to the ambient medium to…

宇宙学与河外天体物理 · 物理学 2024-05-20 Rudrani Kar Chowdhury , Suchetana Chatterjee , Ankit Paul , Craig L. Sarazin , Jane Lixin Dai

Aims. Recent observational studies suggest that feedback from active galactic nuclei (AGNs) may play an important role in the formation and evolution of low-mass dwarf galaxies, an issue that has received little attention from a theoretical…

星系天体物理 · 物理学 2025-02-27 Elena Arjona-Galvez , Arianna Di Cintio , Robert J. J. Grand

We ask how the inclusion of various physical heating processes due to the metal content of gas affect the evolution of massive galaxies and compute a suite of cosmological hydrodynamical simulations that follow these systems and their…

The observed massive end of the galaxy stellar mass function is steeper than its predicted dark matter halo counterpart in the standard $\Lambda $CDM paradigm. In this paper, we investigate the impact of active galactic nuclei (AGN)…

The interplay between radiative cooling of the circumgalactic medium (CGM) and feedback heating governs the evolution of the universe's most massive galaxies. This paper presents simulations of feedback processes in massive galaxies showing…

Magnetic fields play a very important role in the evolution of galaxies through their direct impact on star formation and stellar feedback-induced turbulence. However, their co-evolution with these processes has still not been thoroughly…

星系天体物理 · 物理学 2018-11-14 Evangelia Ntormousi

Feedback from supermassive black holes is believed to be a critical driver of the observed color bimodality of galaxies above the Milky Way mass scale. AGN feedback has been modeled in many galaxy formation simulations, but most…

Active galactic nuclei (AGN) and star formation feedback may heat and remove gas from galaxies in a process that quenches ongoing star formation and shapes the evolution of galaxies. Potential impacts from these processes can be seen in the…

星系天体物理 · 物理学 2026-02-10 Kyla Mullaney , Kelly E. Whalen , Jenna Cann , Kimberly Weaver , Jeffrey McKaig , Sara Doan

We employ cosmological hydrodynamical simulations to investigate the effects of AGN feedback on the formation of massive galaxies with present-day stellar masses of $M_{stel} = 8.8 \times 10^{10} - 6.0 \times 10^{11} M_{sun}$. Using…

宇宙学与河外天体物理 · 物理学 2015-06-19 Ena Choi , Jeremiah P. Ostriker , Thorsten Naab , Ludwig Oser , Benjamin P. Moster

Feedback effects generated by supernovae (SNe) and active galactic nuclei (AGNs) are pivotal in shaping the evolution of galaxies and their present-day structures. However, our understanding of the specific mechanisms operating at galactic…

星系天体物理 · 物理学 2023-07-20 Kentaro Nagamine

Active galactic nuclei (AGN) are among the most energetic phenomena in the universe, capable of regulating star formation in galaxies via radiative and mechanical feedback. While AGN feedback is well studied in host galaxies, its influence…

星系天体物理 · 物理学 2025-07-14 Apashanka Das , Biswajit Pandey

Feedback from active galactic nuclei (AGN) has become a major component in simulations of galaxy evolution, in particular for massive galaxies. AGN jets have been shown to provide a large amount of energy and are capable of quenching…

宇宙学与河外天体物理 · 物理学 2012-09-13 Volker Gaibler , Sadegh Khochfar , Martin Krause , Joseph Silk
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