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The descendants of JWST galaxies in the COLIBRE simulations
Xu Zhao, Carlos S. Frenk, Andrew Pontzen +9
Recent observations with JWST have revealed a population of UV-bright galaxies at . This discovery naturally raises the question: what do such early galaxies evolve in…
The progenitors of JWST galaxies in the COLIBRE simulations
Evgenii Chaikin, Andrew Pontzen, Carlos S. Frenk +4
JWST has revealed a large population of luminous galaxies () at redshifts , widely interpreted as posing a challenge to models of galaxy forma…
Evidence for renormalized instantons in real-time simulations of vacuum decay
Emilie Hertig, Alexander C. Jenkins, Hiranya V. Peiris +2
While vacuum decay is traditionally described by Euclidean instanton methods, lattice simulations enable real-time modeling of dynamical observables relevant to cosmology and upcom…
Thermostats, Not Engines: A New Picture of Halo Gas Regulation
Hiranya V. Peiris, Andrew Pontzen, Madalina N. Tudorache +5
We propose that black hole feedback regulates gas in massive halos by establishing an entropy ceiling; the resulting buoyant gas migrates to the virial radius with no additional en…
The limits of feedback from active galactic nuclei
Andrew Pontzen, Hiranya V. Peiris, Joop Schaye +1
We use FLAMINGO to investigate why feedback from active galactic nuclei (AGN) significantly depletes gas in galaxy groups but is ineffective in clusters. We delineate three radial…
VINTERGATAN-GM: long-lived satellite planes induced by a massive GSE-like merger
R. Rodríguez-Cardoso, S. Roca-Fàbrega, Oscar Agertz +7
Satellite galaxies in the Local Group tend to be distributed in thin, planar configurations, with many sharing coherent orbital motion. Galaxy formation simulations in CDM have…