中文
相关论文

相关论文: Galactic Angular Momentum in the Illustris Simulat…

200 篇论文

The metallicity of galaxies, and its variation with galactocentric radius, provides key insights into the formation histories of galaxies and the physical processes driving their evolution. In this work, we analyze the radial metallicity…

The difference in shape between the observed galaxy stellar mass function and the predicted dark matter halo mass function is generally explained primarily by feedback processes. Feedback can shape the stellar-halo mass (SHM) relation by…

星系天体物理 · 物理学 2022-02-23 Peter D. Mitchell , Joop Schaye

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

Mechanical feedback from massive stars, primarily from supernovae, can dominate ISM structuring and phase balance, thereby profoundly affecting galactic evolutionary processes. Our understanding of mechanical feedback is based on the…

天体物理学 · 物理学 2008-11-26 M. S. Oey

This paper provides a summary of our recent work on the scaling relations between the specific angular momentum j_* and mass M_* of the stellar parts of normal galaxies of different bulge fraction beta_*. We find that the observations are…

星系天体物理 · 物理学 2018-12-18 S. Michael Fall , Aaron J. Romanowsky

Stellar and black hole feedback heat and disperse surrounding cold gas clouds, launching gas flows off circumnuclear and galactic disks and producing a dynamic interstellar medium. On large scales bordering the cosmic web, feedback drives…

Although supernova explosions and stellar winds happens at scales bellow 100 pc, they affect the interstellar medium(ISM) and galaxy formation. We use cosmological N-body+Hydrodynamics simulations of galaxy formation, as well as simulations…

天体物理学 · 物理学 2009-11-13 Daniel Ceverino , Anatoly Klypin

The latest generation of cosmological simulations are on the verge of being able to resolve the structure of bulges for the first time. Hence, we review the current state of bulge formation in cosmological simulations, and discuss open…

星系天体物理 · 物理学 2015-12-09 Alyson M. Brooks , Charlotte R. Christensen

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…

Stellar feedback -- stars regulating further star formation through the injection of energy and momentum into the interstellar medium -- operates through a complex set of processes that originate in star clusters but shape entire galaxies.…

We have carried out a controlled comparison of the structural and kinematic properties of the circumgalactic medium (CGM) around Milky Way mass galaxies in the Illustris and IllustrisTNG simulations. Very striking differences are found. At…

Galactic winds from star-forming galaxies are crucial to the process of galaxy formation and evolution, regulating star formation, shaping the stellar mass function and the mass-metallicity relation, and enriching the intergalactic medium…

星系天体物理 · 物理学 2018-11-05 Dong Zhang

We investigate the evolution of angular momentum in simulations of galaxy formation in a cold dark matter universe. We analyse two model galaxies generated in the N-body/hydrodynamic simulations of Okamoto et al. Starting from identical…

天体物理学 · 物理学 2010-12-08 J. Zavala , T. Okamoto , Carlos S. Frenk

Active Galactic Nucleus (AGN) feedback plays a critical role in galaxy formation and evolution. AGN-driven winds can significantly influence their host galaxies, although the details of their impact remain unclear. In this study, we…

星系天体物理 · 物理学 2026-03-16 Jinning Liang , Cedric G. Lacey , Filip Huško , Evgenii Chaikin , Sownak Bose

We examine simulations of isolated galaxies to analyse the effects of localised feedback on the formation and evolution of molecular clouds. Feedback contributes to turbulence and the destruction of clouds, leading to a population of clouds…

星系天体物理 · 物理学 2015-06-19 David J. Williamson , Robert J. Thacker , James Wurster , Brad K. Gibson

We use numerical simulations of isolated galaxies to study the effects of stellar feedback on the formation and evolution of giant star-forming gas 'clumps' in high-redshift, gas-rich galaxies. Such galactic disks are unstable to the…

宇宙学与河外天体物理 · 物理学 2013-07-02 Philip F. Hopkins , Dusan Keres , Norman Murray , Eliot Quataert , Lars Hernquist

Elliptical galaxies comprise primarily old stars, which collectively generate a long-lasting feedback via stellar mass-loss and Type Ia SNe. This feedback can be traced by X-ray-emitting hot gas in and around such galaxies, in which little…

星系天体物理 · 物理学 2015-05-18 Q. Daniel Wang

Using a novel machine learning method, we investigate the buildup of galaxy properties in different simulations, and in various environments within a single simulation. The aim of this work is to show the power of this approach at…

星系天体物理 · 物理学 2023-06-28 Robert McGibbon , Sadegh Khochfar

We use simulations with realistic models for stellar feedback to study galaxy mergers. These high resolution (1 pc) simulations follow formation and destruction of individual GMCs and star clusters. The final starburst is dominated by in…

宇宙学与河外天体物理 · 物理学 2013-07-02 Philip F. Hopkins , Thomas J. Cox , Lars Hernquist , Desika Narayanan , Christopher C. Hayward , Norman Murray

The central dark-matter fraction of galaxies is sensitive to feedback processes during galaxy formation. Strong gravitational lensing has been effective in the precise measurement of the dark-matter fraction inside massive early-type…