494 citations · 4.9k across the 67 of their papers we have counts for
68 papers
Towards robust simulations of the galactic dynamo: a cross-code comparison between Eulerian and Lagrangian schemes
Mark Ivan Ugalino, Benedikt Diemer, Vadim A. Semenov +8
Galactic magnetic fields are thought to be seeded by microscopic processes such as the Biermann battery and are primarily amplified to observed microgauss strengths by dynamo proce…
Shock-heated Away: The Impact of Radiative Cooling on Gas-Phase Transitions in Supernova Remnants
Zuzanna Kocjan, Benedikt Diemer, Vadim A. Semenov +2
Supernova (SN) feedback plays a central role in regulating the structure of the interstellar medium (ISM) through the injection of energy and momentum. The amount of hot gas produc…
Cluster finding with outskirt stellar masses and percolation
Pablo Avalos, Conghao Zhou, Tesla Jeltema +5
The abundance of galaxy clusters is a powerful cosmological probe, but optical cluster cosmology is limited by selection systematics, in particular the projection effects that affe…
The mass-dependent UVJ diagram at cosmic noon: A challenge for galaxy evolution models and dust radiative transfer
Andrea Gebek, Benedikt Diemer, Marco Martorano +9
Context. The UVJ color-color diagram is a widely used diagnostic to separate star-forming and quiescent galaxies. Observational data from photometric surveys reveal a strong stella…
Relationship between 2D and 3D Galaxy Stellar Mass and Correlations with Halo Mass
Conghao Zhou, Alexie Leauthaud, Shuo Xu +8
Recent studies suggest that the stars in the outer regions of massive galaxies trace halo mass better than the inner regions and that an annular stellar mass provides a low scatter…
A Multi-Wavelength Technique for Estimating Galaxy Cluster Mass Accretion Rates
John Soltis, Michelle Ntampaka, Benedikt Diemer +7
The mass accretion rate of galaxy clusters is a key factor in determining their structure, but a reliable observational tracer has yet to be established. We present a state-of-the-…
The Outskirt Stellar Mass of Low-Redshift Massive Galaxies is an Excellent Halo Mass Proxy in Illustris/IllustrisTNG Simulations
Shuo Xu, Song Huang, Alexie Leauthaud +4
Recent observations suggest that the extended stellar halos of low-redshift massive galaxies are tightly connected to the assembly of their dark matter halos. In this paper, we use…
A dynamics-based density profile for dark haloes -- III. Parameter space
Benedikt Diemer
In the previous paper of this series, we proposed a new function to fit halo density profiles out to large radii. This truncated Einasto profile models the inner, orbiting matter a…
Dynamics-based halo model for large scale structure
Edgar M. Salazar, Eduardo Rozo, Rafael García +4
Accurate modelling of the one-to-two halo transition has long been difficult to achieve. We demonstrate that physically motivated halo definitions that respect the bimodal phase-sp…
VERTICO and IllustrisTNG: The spatially resolved effects of environment on galactic gas
Adam R. H. Stevens, Toby Brown, Benedikt Diemer +15
It has been shown in previous publications that the TNG100 simulation quantitatively reproduces the observed reduction in each of the total atomic and total molecular hydrogen gas…
Atomic Hydrogen Shows its True Colours: Correlations between HI and Galaxy Colour in Simulations
Calvin Osinga, Benedikt Diemer, Francisco Villaescusa-Navarro +2
Intensity mapping experiments are beginning to measure the spatial distribution of neutral atomic hydrogen (HI) to constrain cosmological parameters and the large-scale distributio…
Haunted haloes: tracking the ghosts of subhaloes lost by halo finders
Benedikt Diemer, Peter Behroozi, Philip Mansfield
Dark matter subhaloes are key for the predictions of simulations of structure formation, but their existence frequently ends prematurely due to two technical issues, namely numeric…
The atomic-to-molecular hydrogen transition in the TNG50 simulation: Using realistic UV fields to create spatially resolved HI maps
Andrea Gebek, Maarten Baes, Benedikt Diemer +6
Cold gas in galaxies provides a crucial test to evaluate the realism of cosmological hydrodynamical simulations. To extract the atomic and molecular hydrogen properties of the simu…
What sets the splashback radius of dark matter haloes: accretion history or other properties?
Tae-hyeon Shin, Benedikt Diemer
The density profiles of dark matter haloes contain rich information about their growth history and physical properties. One particularly interesting region is the splashback radius…
The Contribution of In-situ and Ex-situ Star Formation in Early-Type Galaxies: MaNGA versus IllustrisTNG
Carlo Cannarozzo, Alexie Leauthaud, Grecco A. Oyarzún +6
We compare stellar mass surface density, metallicity, age, and line-of-sight velocity dispersion profiles in massive () present-day early-type g…
A Better Way to Define Dark Matter Haloes
Rafael Garcia, Edgar Salazar, Eduardo Rozo +5
Dark matter haloes have long been recognized as one of the fundamental building blocks of large scale structure formation models. Despite their importance -- or perhaps because of…
A dynamics-based density profile for dark haloes -- II. Fitting function
Benedikt Diemer
The density profiles of dark matter haloes are commonly described by fitting functions such as the NFW or Einasto models, but these approximations break down in the transition regi…
Cold Gas in Massive Galaxies as A Critical Test of Black Hole Feedback Models
Jingjing Shi, Yingjie Peng, Benedikt Diemer +15
Black hole feedback has been widely implemented as the key recipe to quench star formation in massive galaxies in modern semi-analytic models and hydrodynamical simulations. As the…
On the formation of massive quiescent galaxies with diverse morphologies in the TNG50 simulation
Minjung Park, Sandro Tacchella, Erica J. Nelson +7
Observations have shown that the star-formation activity and the morphology of galaxies are closely related, but the underlying physical connection is not well understood. Using th…
A dynamics-based density profile for dark haloes. I. Algorithm and basic results
Benedikt Diemer
The density profiles of dark matter haloes can potentially probe dynamics, fundamental physics, and cosmology, but some of the most promising signals reside near or beyond the viri…
VERTICO: The Virgo Environment Traced In CO Survey
Toby Brown, Christine D. Wilson, Nikki Zabel +33
We present the Virgo Environment Traced in CO (VERTICO) survey, a new effort to map CO(), CO(), and CO() in 51 Virgo Cluster galaxies with the A…
Entropy-Conserving Scheme for Modeling Nonthermal Energies in Fluid Dynamics Simulations
Vadim A. Semenov, Andrey V. Kravtsov, Benedikt Diemer
We compare the performance of energy-based and entropy-conserving schemes for modeling nonthermal energy components, such as unresolved turbulence and cosmic rays, using idealized…
Beyond Mass: Detecting Secondary Halo Properties with Galaxy-Galaxy Lensing
Enia Xhakaj, Alexie Leauthaud, Johannes Lange +3
Secondary halo properties beyond mass, such as the mass accretion rate (MAR), concentration, and the half mass scale, are essential in understanding the formation of large-scale st…
Spatially Resolved Star Formation and Inside-out Quenching in the TNG50 Simulation and 3D-HST Observations
Erica J. Nelson, Sandro Tacchella, Benedikt Diemer +21
We compare the star forming main sequence (SFMS) -- both integrated and resolved on 1kpc scales -- between the high-resolution TNG50 simulation of IllustrisTNG and observations fro…