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We perform simulations to study the effects of active galactic nuclei (AGNs) radiation and wind feedback on the properties of slowly rotating accretion flow at parsec scale. We find that when only radiative feedback is considered, outflows…

高能天体物理现象 · 物理学 2019-09-11 De-Fu Bu , Xiao-Hong Yang

Internal feedback from massive stars and active galactic nuclei (AGN) play a key role in galaxy evolution, but external environmental effects can also strongly influence galaxies. We investigate the impact of environment on galaxy…

Feedback likely plays a crucial role in resolving discrepancies between observed and theoretical predictions of dwarf galaxy properties. Stellar feedback was once believed to be sufficient to explain these discrepancies, but it has thus far…

Beyond deepening our understanding of the formation, growth, and evolution of supermassive black holes, it is crucial to uncover the role of feeding and feedback processes from growing black holes (i.e., active galactic nucleus; AGN) in…

Large-scale, broad outflows are common in active galaxies. In systems where star formation coexists with an AGN, it is unclear yet the role that both play on driving the outflows. In this work we present three-dimensional radiative-cooling…

高能天体物理现象 · 物理学 2018-09-21 E. de Gouveia Dal Pino , W. Clavijo-Bohórquez , C. Melioli

To fully take advantage of the data provided by large-scale structure surveys, we need to quantify the potential impact of baryonic effects, such as feedback from active galactic nuclei (AGN) and star formation, on cosmological observables.…

AGN feedback is believed to play an important role in shaping a variety of observed galaxy properties, as well as the evolution of their stellar masses and star formation rates. In particular, in the current theoretical paradigm of galaxy…

宇宙学与河外天体物理 · 物理学 2015-05-19 Fabio Fontanot , Anna Pasquali , Gabriella De Lucia , Frank C. van den Bosch , Rachel S. Somerville , Xi Kang

We review the progress in modelling the galaxy population in hydrodynamical simulations of the Lambda-CDM cosmogony. State-of-the-art simulations now broadly reproduce the observed spatial clustering of galaxies, the distributions of key…

星系天体物理 · 物理学 2023-10-02 Robert A. Crain , Freeke van de Voort

We study the impact of outflows driven by active galactic nuclei (AGN) on galaxy formation. Outflows move into the surrounding intergalactic medium (IGM) and heat it sufficiently to prevent it from condensing onto galaxies. In the dense,…

天体物理学 · 物理学 2009-11-13 Evan Scannapieco , Joseph Silk , Rychard Bouwens

Feedback from supernovae is often invoked as an important process in limiting star formation, removing gas from galaxies and hence as a determining process in galaxy formation. Here we report on numerical simulations investigating the…

星系天体物理 · 物理学 2020-02-19 William E. Lucas , Ian A. Bonnell , James E. Dale

The importance of feedback (radiative and mechanical) from massive black holes at the centers of elliptical galaxies is not in doubt, given the well established relation among black hole mass and galaxy optical luminosity. Here, with the…

星系天体物理 · 物理学 2015-05-27 L. Ciotti , J. P. Ostriker

We present a semi-analytical model of high redshift galaxy formation. In our model the star formation inside a galaxy is regulated by the feedback from supernova (SNe) driven outflows. We derive a closed analytical form for star formation…

宇宙学与河外天体物理 · 物理学 2015-06-18 Saumyadip Samui

In a recent study (Martizzi et al. 2012), we used cosmological simulations to show that active galactic nuclei (AGN) feedback on the gas distribution in clusters of galaxies can be important in determining the spatial distribution of stars…

宇宙学与河外天体物理 · 物理学 2015-06-12 D. Martizzi , R. Teyssier , B. Moore

We build upon FEGA25 (Contini et al 2025), a previously introduced semi-analytic model for galaxy formation and evolution, focusing on its enhanced treatment of supernova and active galactic nucleus feedback mechanisms. In addition to the…

星系天体物理 · 物理学 2025-10-01 Emanuele Contini , Changjo Seo , Jinsu Rhee , Seyoung Jeon , Sukyoung K. Yi

Various heuristic approaches to model unresolved supernova (SN) feedback in galaxy formation simulations exist to reproduce the formation of spiral galaxies and the overall inefficient conversion of gas into stars. Some models, however,…

星系天体物理 · 物理学 2017-03-08 Alejandro Núñez , Jeremiah P. Ostriker , Thorsten Naab , Ludwig Oser , Chia-Yu Hu , Ena Choi

Feedback from core collapse supernovae (SNe), the final stage of evolution of massive stars, is a key element in galaxy formation theory. The energy budget of SN feedback, as well as the duration over which SNe occur, are constrained by…

星系天体物理 · 物理学 2022-03-23 Benjamin W. Keller , J. M. Diederik Kruijssen

Observations indicate that early-type galaxies exhibit varying slopes in the relation between their central stellar surface density and stellar mass ($\Sigma_1 - M_{\star}$). Low-mass galaxies tend to follow a steep slope, close to one,…

星系天体物理 · 物理学 2025-04-15 Fazeel Mahmood Khan , Ángel Rodríguez , Andrea V. Macciò , Smarika Sharma

We study the interplay between several properties determined from Optical and a combination of Optical/Radio measurements, such as the effective Oxygen yield (y_eff), the star formation efficiency, gas metallicity, depletion time, gas…

It is the twentieth anniversary of the publication of the seminal papers by Magorrian et al. and Silk & Rees which, along with other related work, ignited an explosion of publications connecting active galactic nuclei (AGN)-driven outflows…

星系天体物理 · 物理学 2018-03-01 C. M. Harrison , T. Costa , C. N. Tadhunter , A. Flütsch , D. Kakkad , M. Perna , G. Vietri

Galactic feedback strongly affects the way galactic environments are enriched. We examine this connection by performing a suite of cosmological hydrodynamic simulations, exploring a range of parameters based on the galaxy formation model…