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Gas-phase metallicity break radii of star-forming galaxies in IllustrisTNG
Alex M. Garcia, Paul Torrey, Z. S. Hemler +6
We present radial gas-phase metallicity profiles, gradients, and break radii at redshift from the TNG50-1 star-forming galaxy population. These metallicity profiles are…
Tracing the hot spot motion using the next generation Event Horizon Telescope (ngEHT)
Razieh Emami, Paul Tiede, Sheperd S. Doeleman +19
We propose to trace the dynamical motion of a shearing hot spot near the SgrA* source through a dynamical image reconstruction algorithm, StarWarps. Such a hot spot may form as the…
Probing plasma composition with the next generation Event Horizon Telescope (ngEHT)
Razieh Emami, Richard Anantua, Angelo Ricarte +15
We explore the plasma matter content in the innermost accretion disk/jet in M87* as relevant for an enthusiastic search for the signatures of anti-matter in the next generation of…
Morphological signatures of mergers in the TNG50 simulation and the Kilo-Degree Survey: the merger fraction from dwarfs to Milky Way-like galaxies
Alejandro Guzmán-Ortega, Vicente Rodriguez-Gomez, Gregory F. Snyder +2
Using the TNG50 cosmological simulation and observations from the Kilo-Degree Survey (KiDS), we investigate the connection between galaxy mergers and optical morphology in the loca…
Active galactic nucleus jet feedback in hydrostatic halos
Rainer Weinberger, Kung-Yi Su, Kristian Ehlert +8
Feedback driven by jets from active galactic nuclei is believed to be responsible for reducing cooling flows in cool-core galaxy clusters. We use simulations to model feedback from…
The merger and assembly histories of Milky Way- and M31-like galaxies with TNG50: disk survival through mergers
Diego Sotillo-Ramos, Annalisa Pillepich, Martina Donnari +6
We analyze the merger and assembly histories of Milky Way (MW) and Andromeda (M31)-like galaxies to quantify how, and how often, disk galaxies of this mass can survive recent major…
The MillenniumTNG Project: An improved two-halo model for the galaxy-halo connection of red and blue galaxies
Boryana Hadzhiyska, Daniel Eisenstein, Lars Hernquist +11
Approximate methods to populate dark matter halos with galaxies are of great utility to large galaxy surveys. However, the limitations of simple halo occupation models (HODs) precl…
The MillenniumTNG Project: Refining the one-halo model of red and blue galaxies at different redshifts
Boryana Hadzhiyska, Lars Hernquist, Daniel Eisenstein +11
Luminous red galaxies (LRGs) and blue star-forming emission-line galaxies (ELGs) are key tracers of large-scale structure used by cosmological surveys. Theoretical predictions for…
Orbital and Radiative Properties of Wandering Intermediate-Mass Black Holes in the ASTRID Simulation
Emma Jane Weller, Fabio Pacucci, Yueying Ni +4
Intermediate-Mass Black Holes (IMBHs) of are commonly found at the center of dwarf galaxies. Simulations and observations convincingly show that a sizable po…
The MillenniumTNG Project: Semi-analytic galaxy formation models on the past lightcone
Monica Barrera, Volker Springel, Simon White +9
Upcoming large galaxy surveys will subject the standard cosmological model, CDM, to new precision tests. These can be tightened considerably if theoretical models of galaxy form…
The MillenniumTNG Project: Inferring cosmology from galaxy clustering with accelerated N-body scaling and subhalo abundance matching
Sergio Contreras, Raul E. Angulo, Volker Springel +11
We introduce a novel technique for constraining cosmological parameters and galaxy assembly bias using non-linear redshift-space clustering of galaxies. We scale cosmological N-bod…
The MillenniumTNG Project: The galaxy population at
Rahul Kannan, Volker Springel, Lars Hernquist +11
The early release science results from have yielded an unexpected abundance of high-redshift luminous galaxies that seems to be in tension with current theories of…
The MillenniumTNG Project: The large-scale clustering of galaxies
Sownak Bose, Boryana Hadzhiyska, Monica Barrera +9
Modern redshift surveys are tasked with mapping out the galaxy distribution over enormous distance scales. Existing hydrodynamical simulations, however, do not reach the volumes ne…
The MillenniumTNG Project: The hydrodynamical full physics simulation and a first look at its galaxy clusters
Ruediger Pakmor, Volker Springel, Jonathan P. Coles +12
Cosmological simulations are an important theoretical pillar for understanding nonlinear structure formation in our Universe and for relating it to observations on large scales. In…
The MillenniumTNG Project: High-precision predictions for matter clustering and halo statistics
César Hernández-Aguayo, Volker Springel, Rüdiger Pakmor +9
Cosmological inference with large galaxy surveys requires theoretical models that combine precise predictions for large-scale structure with robust and flexible galaxy formation mo…
Unraveling Twisty Linear Polarization Morphologies in Black Hole Images
Razieh Emami, Angelo Ricarte, George N. Wong +23
We investigate general relativistic magnetohydrodynamic simulations (GRMHD) to determine the physical origin of the twisty patterns of linear polarization seen in spatially resolve…
Modeling globular clusters in the TNG50 simulation: predictions from dwarfs to giants
Jessica E. Doppel, Laura V. Sales, Dylan Nelson +9
We present a post-processing catalog of globular clusters (GCs) for the most massive groups and clusters in the TNG50 simulation of the IlllustrisTNG project (virial masses $M…
Origin and evolution of ultra-diffuse galaxies in different environments
Jose A. Benavides, Laura V. Sales, Mario. G. Abadi +3
We study the formation of ultra-diffuse galaxies (UDGs) using the cosmological hydrodynamical simulation TNG50 of the Illustris-TNG suite. We define UDGs as dwarf galaxies in the s…
The locations of features in the mass distribution of merging binary black holes are robust against uncertainties in the metallicity-dependent cosmic star formation history
L. A. C. van Son, S. E. de Mink, M. Chruslinska +3
New observational facilities are probing astrophysical transients such as stellar explosions and gravitational wave (GW) sources at ever increasing redshifts, while also revealing…
Stellar Bars in Isolated Gas-Rich Spiral Galaxies Do Not Slow Down
Angus Beane, Lars Hernquist, Elena D'Onghia +6
Elongated bar-like features are ubiquitous in galaxies, occurring at the centers of approximately two-thirds of spiral disks in the nearby Universe. Due to gravitational interactio…
Morphological decomposition of TNG50 galaxies: methodology and catalogue
Tommaso Zana, Alessandro Lupi, Matteo Bonetti +6
We present MORDOR (MORphological DecOmposeR, a new algorithm for structural decomposition of simulated galaxies based on stellar kinematics. The code measures the properties of up…
The observability of galaxy merger signatures in nearby gas-rich spirals
Rebecca McElroy, Connor Bottrell, Maan H. Hani +8
Galaxy mergers are crucial to understanding galaxy evolution, therefore we must determine their observational signatures to select them from large IFU galaxy samples such as MUSE a…
Probing the quasars in a universe with IllustrisTNG physics: Impact of gas-based black hole seeding models
Aklant Kumar Bhowmick, Laura Blecha, Yueying Ni +6
We explore implications of a range of black hole (BH) seeding prescriptions on the formation of the brightest quasars in cosmological hydrodynamic simulations. The unde…
Galactic angular momentum in the IllustrisTNG simulation -- I. Connection to morphology, halo spin, and black hole mass
Vicente Rodriguez-Gomez, Shy Genel, S. Michael Fall +9
We use the TNG100 simulation of the IllustrisTNG project to investigate the stellar specific angular momenta () of 12,000 central galaxies at in a full cosmol…