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相关论文: Disparate Effects of Circumgalactic Medium Angular…

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Current cosmological simulations rely on active galactic nuclei (AGN) feedback to quench star formation and match observed stellar mass distributions, but models for AGN feedback are poorly constrained. The circumgalactic medium (CGM)…

We examine the connection between the properties of the circumgalactic medium (CGM) and the quenching and morphological evolution of central galaxies in the EAGLE and IllustrisTNG simulations. The simulations yield very different median CGM…

星系天体物理 · 物理学 2019-11-18 Jonathan J. Davies , Robert A. Crain , Benjamin D. Oppenheimer , Joop Schaye

The gas needed to sustain star formation in galaxies is supplied by the circumgalactic medium (CGM), which in turn is affected by accretion from large scales. In a series of two papers, we examine the interplay between a galaxy's ambient…

星系天体物理 · 物理学 2021-11-17 Shengdong Lu , Dandan Xu , Sen Wang , Zheng Cai , Chuan He , C. Kevin Xu , Xiaoyang Xia , Shude Mao , Volker Springel , Lars Hernquist

We present an analysis of the angular momentum content of the circumgalactic medium (CGM) using TNG100, one of the flagship runs of the IllustrisTNG project. We focus on Milky Way-mass halos ($\sim 10^{12} \; M_{\odot}$) at $z=0$ but also…

星系天体物理 · 物理学 2020-05-22 Daniel DeFelippis , Shy Genel , Greg L. Bryan , Dylan Nelson , Annalisa Pillepich , Lars Hernquist

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…

We investigate the influence of active galactic nucleus (AGN) feedback on the galaxy cold gas content and its connection to galaxy quenching in three hydrodynamical simulations of Illustris, IllustrisTNG and SIMBA. By comparing to the…

星系天体物理 · 物理学 2023-01-04 Wenlin Ma , Kexin Liu , Hong Guo , Weiguang Cui , Michael G. Jones , Jing Wang , Le Zhang , Romeel Dave

The circumgalactic medium (CGM) around massive galaxies plays a crucial role in regulating star formation and feedback. Using the CAMELS simulation suite, we develop emulators for the X-ray surface brightness profile and the X-ray…

We use the SIMBA galaxy formation simulation suite to explore anisotropies in the properties of circumgalactic gas that result from accretion and feedback processes. We particularly focus on the impact of bipolar active galactic nuclei…

星系天体物理 · 物理学 2023-10-19 Tianyi Yang , Romeel Davé , Weiguang Cui , Yan-Chuan Cai , John A. Peacock , Daniele Sorini

The baryonic physics shaping galaxy formation and evolution are complex, spanning a vast range of scales and making them challenging to model. Cosmological simulations rely on subgrid models that produce significantly different predictions.…

Coupling between active galactic nuclei (AGN) and the circumgalactic medium (CGM) is critical to the interplay between radiative cooling and feedback heating in the atmospheres of the universe's most massive galaxies. This paper presents a…

星系天体物理 · 物理学 2022-06-22 Deovrat Prasad , G. Mark Voit , Brian W. O'Shea

The hot ($>10^6$ K) phase of the circumgalactic medium (CGM) contains a large fraction of baryons in galaxies. It also retains signatures of the processes that shaped the galaxies, such as feedback from active galactic nuclei (AGNs) and…

星系天体物理 · 物理学 2022-09-08 Urmila Chadayammuri , Akos Bogdan , Benjamin Oppenheimer , Ralph Kraft , William Forman , Christine Jones

Using the cosmological simulations IllustrisTNG, we perform a comprehensive analysis of quiescent, massive galaxies at $z \gtrsim 3$. The goal is to understand what suppresses their star formation so early in cosmic time, and how other…

星系天体物理 · 物理学 2024-10-28 Shalini Kurinchi-Vendhan , Marion Farcy , Michaela Hirschmann , Francesco Valentino

We derive predictions from state-of-the-art cosmological galaxy simulations for the spatial distribution of the hot circumgalactic medium (CGM, ${\rm [0.1-1]R_{200c}}$) through its emission lines in the X-ray soft band ($[0.3-1.3]$ keV). In…

We study the effect of magnetic fields on a simulated galaxy and its surrounding gaseous halo, or circumgalactic medium (CGM), within cosmological 'zoom-in' simulations of a Milky Way-mass galaxy as part of the 'Simulating the Universe with…

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…

We use cosmological hydrodynamical simulations to examine the physical properties of the gas in the circumgalactic media (CGM) of star-forming galaxies as a function of angular orientation. We utilise TNG50 of the IllustrisTNG project, as…

The circumgalactic medium (CGM) encodes signatures of the galaxy-formation process, including the interaction of galactic outflows driven by stellar and supermassive black hole (SMBH) feedback with the gaseous halo. Moving beyond…

星系天体物理 · 物理学 2021-09-16 Nhut Truong , Annalisa Pillepich , Dylan Nelson , Norbert Werner , Lars Hernquist

We study the stellar angular momentum of thousands of galaxies in the Illustris cosmological simulation, which captures gravitational and gas dynamics within galaxies, as well as feedback from stars and black holes. We find that the angular…

The connection between halo gas acquisition through the circumgalactic medium (CGM) and galaxy star formation has long been studied. In this series of two papers, we put this interplay within the context of the galaxy environment on large…

星系天体物理 · 物理学 2021-12-09 Sen Wang , Dandan Xu , Shengdong Lu , Zheng Cai , Maosheng Xiang , Shude Mao , Volker Springel , Lars Hernquist

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…

星系天体物理 · 物理学 2024-04-12 Lucie Scharré , Daniele Sorini , Romeel Davé
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