Dylan Nelson
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View article: Numerical effects on the stripping of dark matter and stars in IllustrisTNG galaxy groups and clusters
Numerical effects on the stripping of dark matter and stars in IllustrisTNG galaxy groups and clusters Open
The stellar haloes and intracluster light around galaxies are crucial test beds for dark matter (DM) physics and galaxy formation models. We consider the role that the numerical resolution plays in the modelling of these systems by studyin…
View article: Mass proxy quality of massive halo properties in the <scp>illustrisTNG</scp> and <scp>flamingo</scp> simulations: I. Hot gas
Mass proxy quality of massive halo properties in the <span>illustrisTNG</span> and <span>flamingo</span> simulations: I. Hot gas Open
We examine scale and redshift dependence of mass–property relations (MPRs) for five hot gas properties of two large group- bservationsand cluster-scale halo samples realized by the Illustris tng, TNG-Cluster, and FLAMINGO cosmological hydr…
View article: The abundance and origin of cool gas in galaxy clusters in the TNG-Cluster simulation
The abundance and origin of cool gas in galaxy clusters in the TNG-Cluster simulation Open
In addition to the hot intracluster medium, massive galaxy clusters host complex, multi-phase gaseous halos. In this work, we quantify the abundance, spatial distribution, and origin of the cool ( T ≤ 10 4.5 K) gas within clusters. To do s…
View article: Quantifying the Impact of Incompleteness on Identifying and Interpreting Galaxy Protocluster Populations with the TNG-Cluster Simulation
Quantifying the Impact of Incompleteness on Identifying and Interpreting Galaxy Protocluster Populations with the TNG-Cluster Simulation Open
We use the TNG-Cluster simulation to investigate how stellar mass and star formation rate (SFR) incompleteness affect the identification of density peaks within galaxy protoclusters at different redshifts. Our analysis focuses on a sample …
View article: Numerical effects on the stripping of dark matter and stars in IllustrisTNG galaxy groups and clusters
Numerical effects on the stripping of dark matter and stars in IllustrisTNG galaxy groups and clusters Open
The stellar haloes and intra-cluster light around galaxies are crucial test beds for dark matter (DM) physics and galaxy formation models. We consider the role that the numerical resolution plays in the modelling of these systems by studyi…
View article: What drives cluster cool-core transformations? A population-level analysis using TNG-Cluster
What drives cluster cool-core transformations? A population-level analysis using TNG-Cluster Open
In this study, we examine the frequency and physical drivers of transformations from cool-core (CC) clusters into non-cool-core (NCC) ones, and vice versa, in a sample of 352 massive galaxy clusters ( M 500c = 10 14 − 15.3 M ⊙ ) from the T…
View article: Magnetic fields in the intracluster medium with TNG-Cluster: properties, morphology, and tangential anisotropy
Magnetic fields in the intracluster medium with TNG-Cluster: properties, morphology, and tangential anisotropy Open
We characterize the magnetic field properties of 352 massive galaxy clusters from the TNG-Cluster magnetohydrodynamical cosmological simulation with a focus on central magnetic field morphology in cool-core (CC) vs non-cool-core (NCC) clus…
View article: THOR: a GPU-accelerated and MPI-parallel radiative transfer code
THOR: a GPU-accelerated and MPI-parallel radiative transfer code Open
Emission and absorption line features are important diagnostics for the physics underlying extragalactic astronomy. The interpretation of observed signatures involves comparing against forward modeled spectra from galaxy formation simulati…
View article: Mass Proxy Quality of Massive Halo Properties in the IllustrisTNG and FLAMINGO Simulations: I. Hot Gas
Mass Proxy Quality of Massive Halo Properties in the IllustrisTNG and FLAMINGO Simulations: I. Hot Gas Open
We examine scale and redshift dependence of mass-property relations (MPRs) for five hot gas properties of two large group- and cluster-scale halo samples realized by the IllustrisTNG, TNG-Cluster and FLAMINGO cosmological hydrodynamical si…
View article: Atacama Large Aperture Submillimeter Telescope (AtLAST) science: Resolving the hot and ionized Universe through the Sunyaev-Zeldovich effect
Atacama Large Aperture Submillimeter Telescope (AtLAST) science: Resolving the hot and ionized Universe through the Sunyaev-Zeldovich effect Open
An omnipresent feature of the multi-phase “cosmic web” — the large-scale filamentary backbone of the Universe — is that warm/hot (≳ 105 K) ionized gas pervades it. This gas constitutes a relevant contribution to the overall universal matte…
View article: Zooming in on the circumgalactic medium with GIBLE: Tracing the origin and evolution of cold clouds
Zooming in on the circumgalactic medium with GIBLE: Tracing the origin and evolution of cold clouds Open
We used the GIBLE suite of cosmological zoom-in simulations of Milky Way-like galaxies with additional super-Lagrangian refinement in the circumgalactic medium (CGM) to quantify the origin and evolution of CGM cold gas clouds. The origin o…
View article: IllustrisTNG plus cosmic rays with a simple transport model: From dwarfs to L<sup>*</sup> galaxies
IllustrisTNG plus cosmic rays with a simple transport model: From dwarfs to L<sup>*</sup> galaxies Open
We used a simple model for the cosmic ray (CR) production and transport to assess the impact of CRs on the properties of z = 0 galaxies, the circumgalactic medium (CGM), and halos. To do this, we ran the first suite of large-volume cosmolo…
View article: Introducing the AIDA-TNG project: Galaxy formation in alternative dark matter models
Introducing the AIDA-TNG project: Galaxy formation in alternative dark matter models Open
We introduce the AIDA-TNG project, a suite of cosmological magnetohydrodynamic simulations that simultaneously model galaxy formation and different variations in the underlying dark matter model. We consider the standard cold dark matter m…
View article: Introducing cosmosTNG: Simulating galaxy formation with constrained realizations of the COSMOS field
Introducing cosmosTNG: Simulating galaxy formation with constrained realizations of the COSMOS field Open
We introduce the new cosmological simulation project cosmosTNG, a first-of-its-kind suite of constrained galaxy formation simulations for the universe at cosmic noon ( z ∼ 2). cosmosTNG simulates a 0.2 deg 2 patch of the COSMOS field at z …
View article: Quantifying the Impact of Incompleteness on Identifying and Interpreting Galaxy Protocluster Populations with the TNG-Cluster Simulation
Quantifying the Impact of Incompleteness on Identifying and Interpreting Galaxy Protocluster Populations with the TNG-Cluster Simulation Open
We use the TNG-Cluster simulation to investigate how stellar mass and star formation rate (SFR) incompleteness affect the identification of density peaks within galaxy protoclusters at different redshifts. Our analysis focuses on a sample …
View article: X-ray cavities in TNG-Cluster: a direct comparison to observations
X-ray cavities in TNG-Cluster: a direct comparison to observations Open
The TNG-Cluster magnetohydrodynamic cosmological simulations produce a diverse population of X-ray cavities in the intracluster medium (ICM) of simulated galaxy clusters. These arise from episodic, high velocity, kinetic energy injections …
View article: The multi-wavelength Tully-Fisher relation in the TNG50 cosmological simulation
The multi-wavelength Tully-Fisher relation in the TNG50 cosmological simulation Open
Context. The Tully-Fisher relation (TFR) is one of the most important and widely used empirical correlations in extragalactic astronomy. Apart from its importance as a secondary distance indicator, the TFR relation serves as a test for gal…
View article: The temperature and metallicity distributions of the ICM: insights with TNG-Cluster for XRISM-like observations
The temperature and metallicity distributions of the ICM: insights with TNG-Cluster for XRISM-like observations Open
The new era of high-resolution X-ray spectroscopy will significantly improve our understanding of the intra-cluster medium (ICM) by providing precise constraints on its underlying physical properties. However, spectral fitting requires rea…
View article: X-ray cavities in TNG-Cluster: a direct comparison to observations
X-ray cavities in TNG-Cluster: a direct comparison to observations Open
The TNG-Cluster magnetohydrodynamic cosmological simulations, produce a diverse population of X-ray cavities in the intracluster medium (ICM) of simulated galaxy clusters. These arise from episodic, high velocity, kinetic energy injections…
View article: Tracing the cosmological origin of gas that fuels in situ star formation in TNG50 galaxies
Tracing the cosmological origin of gas that fuels in situ star formation in TNG50 galaxies Open
Based on their cosmological origin, the stars of a galaxy can be divided into two categories: those that enter through merger events (ex situ) and those born in the main progenitor (in situ). We used the TNG50 cosmological magnetohydrodyna…
View article: Discovery of Biofilm-Inhibiting Compounds to Enhance Antibiotic Effectiveness Against M. abscessus Infections
Discovery of Biofilm-Inhibiting Compounds to Enhance Antibiotic Effectiveness Against M. abscessus Infections Open
Background/Objectives: Mycobacterium abscessus (MAB) is a highly resilient pathogen that causes difficult-to-treat pulmonary infections, particularly in individuals with cystic fibrosis (CF) and other underlying conditions. Its ability to …
View article: Two Channels of Metal-rich Compact Stellar System Formation: Starbursts under High Ram Pressure versus Tidal Stripping
Two Channels of Metal-rich Compact Stellar System Formation: Starbursts under High Ram Pressure versus Tidal Stripping Open
Most galaxies follow a well-defined scaling relation between metallicity and stellar mass; however, some outliers at the low-mass end of the observed galaxy population exhibit unusually high metallicity for their mass. Understanding how th…
View article: Introducing the AIDA-TNG project: galaxy formation in alternative dark matter models
Introducing the AIDA-TNG project: galaxy formation in alternative dark matter models Open
We introduce the AIDA-TNG project, a suite of cosmological magnetohydrodynamic simulations that simultaneously model galaxy formation and different variations of the underlying dark matter model. We consider the standard cold dark matter m…
View article: X-ray cavities in TNG-Cluster: AGN phenomena in the full cosmological context
X-ray cavities in TNG-Cluster: AGN phenomena in the full cosmological context Open
Active galactic nuclei (AGNs) feedback from supermassive black holes (SMBHs) at the centres of galaxy clusters plays a key role in regulating star formation and shaping the intracluster medium, often manifesting through prominent X-ray cav…
View article: MAGAZ3NE: Massive, Extremely Dusty Galaxies at z ∼ 2 Lead to Photometric Overestimation of Number Densities of the Most Massive Galaxies at 3 < z < 4*
MAGAZ3NE: Massive, Extremely Dusty Galaxies at z ∼ 2 Lead to Photometric Overestimation of Number Densities of the Most Massive Galaxies at 3 < z < 4* Open
We present rest-frame optical spectra from Keck/MOSFIRE and Keck/NIRES of 16 candidate ultramassive galaxies targeted as part of the Massive Ancient Galaxies at z > 3 Near-Infrared Survey (MAGAZ3NE). These candidates were selected to have …
View article: Estimating Dark Matter Halo Masses in Simulated Galaxy Clusters with Graph Neural Networks
Estimating Dark Matter Halo Masses in Simulated Galaxy Clusters with Graph Neural Networks Open
Galaxies grow and evolve in dark matter halos. Because dark matter is not visible, galaxies' halo masses ($\rm{M}_{\rm{halo}}$) must be inferred indirectly. We present a graph neural network (GNN) model for predicting $\rm{M}_{\rm{halo}}$ …
View article: The Multi-Scale Multi-Phase Circumgalactic Medium: Observed and Simulated
The Multi-Scale Multi-Phase Circumgalactic Medium: Observed and Simulated Open
These are exciting times for studies of galaxy formation and the growth of structures. New observatories and advanced simulations are revolutionising our understanding of the cycling of matter into, through, and out of galaxies. This chapt…
View article: The cooler past of the intracluster medium in TNG-cluster
The cooler past of the intracluster medium in TNG-cluster Open
The intracluster medium (ICM) today is comprised largely of hot gas with clouds of cooler gas of unknown origin and lifespan. We analyse the evolution of cool gas (temperatures $\lesssim 10^{4.5}$ K) in the ICM of 352 galaxy clusters from …
View article: ERGO-ML: A continuous organization of the X-ray galaxy cluster population in TNG-Cluster with contrastive learning
ERGO-ML: A continuous organization of the X-ray galaxy cluster population in TNG-Cluster with contrastive learning Open
The physical properties of the intracluster medium (ICM) reflect signatures of the underlying gravitational potential, mergers and strong interactions with other halos and satellite galaxies, as well as galactic feedback from supernovae an…
View article: X-ray cavities in TNG-Cluster: AGN phenomena in the full cosmological context
X-ray cavities in TNG-Cluster: AGN phenomena in the full cosmological context Open
Active galactic nuclei (AGN) feedback from supermassive black holes (SMBHs) at the centers of galaxy clusters plays a key role in regulating star formation and shaping the intracluster medium (ICM), often manifesting through prominent X-ra…