中文
相关论文

相关论文: The FLAMINGO Project: Exploring the X-ray--cosmic-…

200 篇论文

We present the Feedback Acting on Baryons in Large-scale Environments (FABLE) suite of cosmological hydrodynamical simulations of galaxies, groups and clusters. The simulations use the AREPO moving-mesh code with a set of physical models…

星系天体物理 · 物理学 2018-07-13 Nicholas A. Henden , Ewald Puchwein , Sijing Shen , Debora Sijacki

We present a new suite of large-volume cosmological hydrodynamical simulations called cosmo-OWLS. They form an extension to the OverWhelmingly Large Simulations (OWLS) project, and have been designed to help improve our understanding of…

宇宙学与河外天体物理 · 物理学 2015-06-18 Amandine M. C. Le Brun , Ian G. McCarthy , Joop Schaye , Trevor J. Ponman

Cosmological shock waves are ubiquitous to cosmic structure formation and evolution. As a consequence, they play a major role in the energy distribution and thermalization of the intergalactic medium (IGM). We analyze the Mach number…

[Abridged] In the past 15 years, the concentration-mass relation has been investigated diffusely in theoretical studies. On the other hand, only recently has this relation been derived from X-ray observations. When that happened, the…

宇宙学与河外天体物理 · 物理学 2015-06-12 Elena Rasia , Stefano Borgani , Stefano Ettori , Pasquale Mazzotta , Massimo Meneghetti

Cosmology from weak gravitational lensing has been limited by astrophysical uncertainties in baryonic feedback and intrinsic alignments. By calibrating these effects using external data, we recover non-linear information, achieving a 2%…

We use the Simba suite of cosmological hydrodynamical simulations to investigate the importance of various stellar and AGN feedback mechanisms in partitioning the cosmic baryons between the intergalactic (IGM) and circumgalactic (CGM) media…

星系天体物理 · 物理学 2024-03-06 Ilya S. Khrykin , Daniele Sorini , Khee-Gan Lee , Romeel Davé

Feedback heating from AGN in massive galaxies and galaxy clusters can be thought of as a naturally occurring control system which plays a significant role in regulating both star formation rates and the X-ray luminosity of the surrounding…

宇宙学与河外天体物理 · 物理学 2011-03-04 Edward C. D. Pope

Observable thermodynamical properties of the intracluster medium (ICM) reflect the complex interplay between AGN feedback and the gravitational collapse of haloes. Using the large volume TNG300 simulation of the IllustrisTNG project we…

The formation of structure in the Universe at large scales is dominated by gravity, with baryonic physics becoming significant at $\sim{\rm Mpc}$ scales. To capture the impact of baryonic physics, cosmological simulations must model gas…

We analyze the total and baryonic acceleration profiles of a set of well-resolved galaxies identified in the EAGLE suite of hydrodynamic simulations. Our runs start from the same initial conditions but adopt different prescriptions for…

We use the EAGLE suite of hydrodynamical simulations to analyse accretion rates (and the breakdown of their constituent channels) onto haloes over cosmic time, comparing the behaviour of baryons and dark matter (DM). We also investigate the…

星系天体物理 · 物理学 2020-08-19 Ruby J. Wright , Claudia del P. Lagos , Chris Power , Peter D. Mitchell

Active galactic nuclei (AGN) feedback has a major impact onto the supermassive black-hole (SMBH) growth, the properties of the host galaxies, and their cosmic evolution. We investigate the effects of different kinetic feedback prescriptions…

Negative feedback from active galactic nuclei (AGN) is the leading mechanism for the quenching of massive galaxies in the vast majority of modern galaxy evolution models. However, direct observational evidence that AGN feedback causes…

星系天体物理 · 物理学 2022-06-29 Samuel Ruthven Ward , Chris Harrison , Tiago Costa , Vincenzo Mainieri

We study the distribution of cold dark matter (CDM) in cosmological simulations from the FIRE (Feedback In Realistic Environments) project, for $M_{\ast}\sim10^{4-11}\,M_{\odot}$ galaxies in $M_{\rm h}\sim10^{9-12}\,M_{\odot}$ halos. FIRE…

星系天体物理 · 物理学 2015-10-28 T. K. Chan , D. Kereš , J. Oñorbe , P. F. Hopkins , A. L. Muratov , C. -A. Faucher-Giguère , E. Quataert

We use matter power spectra from cosmological hydrodynamic simulations to quantify the effect of baryon physics on the weak gravitational lensing shear signal. The simulations consider a number of processes, such as radiative cooling, star…

宇宙学与河外天体物理 · 物理学 2015-05-28 Elisabetta Semboloni , Henk Hoekstra , Joop Schaye , Marcel P. van Daalen , Ian G. McCarthy

We study the effect of AGN mechanical and radiation feedback on the formation of bulge dominated galaxies via mergers of disc galaxies. The merging galaxies have mass-ratios of 1:1 to 6:1 and include pre-existing hot gaseous halos to…

宇宙学与河外天体物理 · 物理学 2015-06-16 Ena Choi , Thorsten Naab , Jeremiah P. Ostriker , Peter H. Johansson , Benjamin P. Moster

To tackle the still unsolved and fundamental problem of the role of Active Galactic Nuclei (AGN) feedback in shaping galaxies, in this work we implement a new physical treatment of AGN-driven winds into our semi-analytic model of galaxy…

星系天体物理 · 物理学 2023-06-28 N. Menci , F. Fiore , F. Shankar , L. Zanisi , C. Feruglio

We compute the real-space cluster-galaxy cross-correlation xi_cg(r) using the ROSAT-ESO Flux Limited X-ray (REFLEX) cluster survey, a group catalogue constructed from the final version of the 2dFGRS, and galaxies extracted from 2MASS and…

天体物理学 · 物理学 2009-11-10 Ariel G. Sanchez , Diego G. Lambas , Hans Boehringer , Peter Schuecker

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…

We use the cosmo-OWLS and BAHAMAS suites of cosmological hydrodynamical simulations to explore the separate and combined effects of baryon physics (particularly feedback from active galactic nuclei, AGN) and free-streaming of massive…

宇宙学与河外天体物理 · 物理学 2017-08-02 Benjamin O. Mummery , Ian G. McCarthy , Simeon Bird , Joop Schaye