421 citations · 591 across the 38 of their papers we have counts for
16 papers · 1 filter
Role of prompt cusps in driving the core collapse of SIDM halos
Vinh Tran, Daniel Gilman, M. Sten Delos +4
Prompt cusps (PCs) form from the direct collapse of overdensities in the early Universe, reside at the center of every dark matter halo, and have density profiles steeper than $r^{…
Metallicity Gradients in Modern Cosmological Simulations II: The Role of Bursty Versus Smooth Feedback at High-Redshift
Alex M. Garcia, Paul Torrey, Aniket Bhagwat +22
The distribution of gas-phase metals within galaxies encodes the impact of stellar feedback on galactic evolution. At high-redshift, when galaxies are rapidly assembling, feedback-…
The THESAN-ZOOM project: The Hidden Neighbours of OI Absorbers during Reionization
Giulia Pruto, Laura Keating, Rahul Kannan +9
Metal absorbers represent a powerful probe of galaxy feedback and reionization, as highlighted by both observational and theoretical results showing an increased abundance of low-i…
Formation of protostars and the launching of stellar core outflows with moving-mesh radiation non-ideal magnetohydrodynamics
Alexander C. Mayer, Rüdiger Pakmor, Thorsten Naab +5
We present an implementation of radiative transfer with flux-limited diffusion (FLD) for the moving-mesh code {\small AREPO} and use the method in a physical model for the formatio…
The Cosmic Rush Hour: Rapid Formation of Bright, Massive, Disky, Star-Forming Galaxies as Signatures of Early-Universe Physics
Xuejian Shen, Oliver Zier, Mark Vogelsberger +4
Early JWST observations have revealed a high-redshift universe more vibrant than predicted by canonical galaxy-formation models within CDM, showing an excess of ultraviolet(UV)-…
High-redshift AGN population in radiation-hydrodynamics simulations
Teodora-Elena Bulichi, Oliver Zier, Aaron Smith +7
High-redshift active galactic nuclei (AGN) have long been recognized as key probes of early black hole growth and galaxy evolution. However, modeling this population remains diffic…
The THESAN-ZOOM project: Mystery N/O more -- uncovering the origin of peculiar chemical abundances and a not-so-fundamental metallicity relation at
William McClymont, Sandro Tacchella, Aaron Smith +15
We present an analysis of metallicities and chemical abundances at in the THESAN-ZOOM simulations. We find that smoothly curved gas-phase and stellar mass-metallicity rela…
Protostellar disks in their natural habitat -- the formation of protostars and their accretion disks in the turbulent and magnetized interstellar medium
Alexander C. Mayer, Thorsten Naab, Paola Caselli +6
We present simulations of the supernova-driven turbulent interstellar medium (ISM) in a simulation domain of volume within which we resolve the formation of pro…
Overmassive black holes in the early Universe can be explained by gas-rich, dark matter-dominated galaxies
William McClymont, Sandro Tacchella, Xihan Ji +12
JWST has revealed the apparent evolution of the black hole (BH)-stellar mass (-$M_\rm{\ast}$) relation in the early Universe, while remaining consistent with the BH-…
The THESAN-ZOOM project: Star formation efficiency from giant molecular clouds to galactic scale in high-redshift starbursts
Zihao Wang, Xuejian Shen, Mark Vogelsberger +12
Star formation in galaxies is inherently complex, involving the interplay of physical processes over a hierarchy of spatial scales. In this work, we investigate the connection betw…
The THESAN-ZOOM project: Star-formation efficiencies in high-redshift galaxies
Xuejian Shen, Rahul Kannan, Ewald Puchwein +10
Recent JWST observations hint at unexpectedly intense cosmic star-formation in the early Universe, often attributed to enhanced star-formation efficiencies (SFEs). Here, we analyze…
The THESAN-ZOOM project: central starbursts and inside-out quenching govern galaxy sizes in the early Universe
William McClymont, Sandro Tacchella, Aaron Smith +9
We explore the evolution of galaxy sizes at high redshift () using the high-resolution THESAN-ZOOM radiation-hydrodynamics simulations, focusing on the mass range of $1…
The THESAN-ZOOM project: Population III star formation continues until the end of reionization
Oliver Zier, Rahul Kannan, Aaron Smith +8
Population III (Pop III) stars are the first stars in the Universe, forming from pristine, metal-free gas and marking the end of the cosmic dark ages. Their formation rate is expec…
The THESAN-ZOOM project: Long-term imprints of external reionization on galaxy evolution
Oliver Zier, Rahul Kannan, Aaron Smith +8
We investigate the impact of ionizing external ultraviolet (UV) radiation on low-mass haloes () at high redshift using baryonic resolution zoom-…
The THESAN-ZOOM project: Burst, quench, repeat -- unveiling the evolution of high-redshift galaxies along the star-forming main sequence
William McClymont, Sandro Tacchella, Aaron Smith +10
Characterizing the evolution of the star-forming main sequence (SFMS) at high redshift is crucial to contextualize the observed extreme properties of galaxies in the early Universe…
Introducing the THESAN-ZOOM project: radiation-hydrodynamic simulations of high-redshift galaxies with a multi-phase interstellar medium
Rahul Kannan, Ewald Puchwein, Aaron Smith +11
We introduce the THESAN-ZOOM project, a comprehensive suite of high-resolution zoom-in simulations of high-redshift () galaxies selected from the THESAN simulation volume…