activity
20222026
most citedThe SRG/eROSITA All-Sky Survey: Dark Energy Survey Year 3 Weak Gravitational Lensing by eRASS1 selected Galaxy Clusters

45 citations · 110 across the 28 of their papers we have counts for

collaborators

29 papers

astro-ph.GA2026

Sleeping or Dead? Probing the Quenching Mechanism of JWST Dormant Galaxies at z > 3 with ALMA

Mengyuan Xiao, Songnan Qi, Pascal A. Oesch +16

JWST has revealed a population of "dormant'' galaxies at z>3 with strong Balmer breaks and weak emission lines, whose star formation appears to have declined only recently. Whether…

astro-ph.GA2026

Barren but not Empty: The Impact of Void Environments on Galaxy and Halo Populations

Anita M. Schiller, Benjamin A. Seidel, Rhea-Silvia Remus +2

The combination of gravitational collapse and an accelerating expansion of the Universe drive an increasing fraction of volume toward becoming low-density voids across cosmic time.…

astro-ph.IM2026

GREX-PLUS Science Book v2

PLUS Science Team, Shunsuke Baba, Sirio Belli +52

GREX-PLUS (Galaxy Reionization EXplorer and PLanetary Universe Spectrometer) is a mission candidate for a JAXA strategic L-class mission to be launched in the 2030s. Its primary sc…

astro-ph.GA2026

Non-spherical Cows: Introducing the Asphericity Parameter as a Measure of Accretion Geometry

Benjamin A. Seidel, Rhea-Silvia Remus, Lucas C. Kimmig +2

The outer regions of galactic halos represent the bridge connecting internal processes within the galaxy to the larger surrounding cosmic web. The gas in this bridge region is shap…

astro-ph.GA2026

Built to Rest: The Evolving Star-Forming Main Sequence Requires Episodic Quiescence or Late Assembly

Lucas C. Kimmig, Jesse van de Sande, Rhea-Silvia Remus +3

The star-forming main sequence of galaxies has now been observed out to redshifts of and beyond. However, it remains unclear how long typical galaxies remain on or near it…

astro-ph.GA2025

How Mergers and Flybys Shape Azimuthal Age Patterns in Spiral Galaxies

Qian-Hui Chen, Alex M. Garcia, Zefeng Li +7

Spiral structures are one of the most common features in galaxies, yet their origins and evolution remain debated. Stellar age distributions offer crucial insights into galaxy evol…

astro-ph.GA2025

The influence of external environment at cosmic noon on the subsequent evolution of galaxy stellar mass

Tianmu Gao, J. Trevor Mendel, Lucas C. Kimmig +4

Connecting high-redshift galaxies to their low-redshift descendants is one of the most important and challenging tasks of galaxy evolution studies. In this work, we investigate whe…

astro-ph.GA2025★ 1 cited

Investigating the imprints of tidal features on simulated galaxy outskirts in LSST-like mock observations

Aman Khalid, Sarah Brough, Garreth Martin +5

Tidal features provide signatures of recent galaxy mergers, offering insights into the role of mergers in galaxy evolution. The Vera C. Rubin Observatory's upcoming Legacy Survey o…

astro-ph.GA2025★ 1 cited

Analysis of Galaxies at the Extremes: Failed Galaxy Progenitors in the MAGNETICUM Simulations

Jonah S. Gannon, Lucas C. Kimmig, Duncan A. Forbes +5

There is increasing observational evidence for a failed galaxy formation pathway for some ultradiffuse galaxies (UDGs) at low redshift however they currently lack simulated counter…

astro-ph.GA2025★ 1 cited

Living the stream: Properties and progenitors of tidal shells and streams around galaxies from Magneticum

Johannes Stoiber, Lucas M. Valenzuela, Rhea-Silvia Remus +4

Stellar shells and streams are remnants of satellite galaxies visible around galaxies. Advances in low-surface-brightness observations and increasing resolution of cosmological sim…

astro-ph.GA2025

Tidal features around simulated groups and cluster galaxies: Enhancement and suppression of merger events through environment in LSST-like mock observations

Aman Khalid, Sarah Brough, Garreth Martin +5

Generally, merger likelihood increases in denser environments; however, the large relative velocities at the centres of dense clusters are expected to reduce the likelihood of merg…

astro-ph.GA2025

Witnessing downsizing in the making: quiescent and breathing galaxies at the dawn of the Universe

Emiliano Merlin, Flaminia Fortuni, Antonello Calabrò +18

[Shortened for arXiv] We conduct a systematic search for quiescent galaxies at in six extragalactic deep fields observed with NIRCam, with t…

astro-ph.GA2025

A massive and evolved slow-rotating galaxy in the early Universe

Ben Forrest, Adam Muzzin, Danilo Marchesini +15

In the contemporary Universe, most galaxies are supported by ordered rotation, yet a significant subset of the most massive and quiescent systems are dominated by random stellar mo…

astro-ph.GA2025★ 2 cited

The Impact of Cluster Mergers on Galaxy Properties

Oğuzhan Çakır, Matt S. Owers, Lucas C. Kimmig +4

The impact of galaxy cluster mergers on the properties of the resident galaxies remains poorly understood. In this paper, we investigate the effects of merging environments on star…

astro-ph.GA2025★ 4 cited

On the unique evolutionary mechanisms of massive quiescent galaxies in the epoch of reionisation

Harry George Chittenden, Karl Glazebrook, Themiya Nanayakkara +4

We investigate the evolutionary histories of a population of high mass, high redshift, quiescent galaxies in the cosmohydrodynamical simulation Thesan, studying the characteristic…

astro-ph.CO2025★ 5 cited

Encyclopedia Magneticum: Scaling Relations from Cosmic Dawn to Present Day

Klaus Dolag, Rhea-Silvia Remus, Lucas M. Valenzuela +10

Galaxy and halo scaling relations, connecting a broad range of parameters, are well established from observations. The origin of many of these relations and their scatter is still…

astro-ph.GA2025★ 7 cited

Intra-Cluster Light as a Dynamical Clock for Galaxy Clusters: Insights from the MAGNETICUM, IllustrisTNG, Hydrangea and Horizon-AGN Simulations

Lucas C. Kimmig, Sarah Brough, Klaus Dolag +19

As the most massive nodes of the cosmic web, galaxy clusters represent the best probes of structure formation. Over time, they grow by accreting and disrupting satellite galaxies,…

astro-ph.CO2025★ 1 cited

Go with the Flow: The Self-Similar and Non-Linear Behaviour of Large-Scale In- and Outflows and the Impact of Accretion Shocks from Galaxies to Galaxy Clusters

Benjamin A. Seidel, Rhea-Silvia Remus, Lucas M. Valenzuela +2

From the scale-free nature of gravity, the structure in the universe is expected to be self-similar on large scales. However, this self-similarity will eventually break down due to…

astro-ph.GA2025★ 5 cited

Die Hard: The On-Off-Cycle of Galaxies on the Star Formation Main Sequence

Silvio Fortuné, Rhea-Silvia Remus, Lucas C. Kimmig +2

Our picture of galaxy evolution currently assumes that galaxies spend their life on the star formation main sequence (SFMS) until they are eventually quenched. However, recent obse…

astro-ph.GA2025★ 1 cited

The MAGPI Survey: the subtle role of environment and not-so-subtle impact of generations of stars on galaxy dynamics

Caroline Foster, Sabine Bellstedt, Francesco DEugenio +23

The stellar age and mass of galaxies have been suggested as the primary determinants for the dynamical state of galaxies, with environment seemingly playing no or only a very minor…

astro-ph.GA2024

From Particles to Pixels: How many particles do I really need to construct stellar kinematic mock observational measurements?

K. E. Harborne, C. del P. Lagos, S. M. Croom +5

This work considers the impact of resolution in the construction of mock observations of simulated galaxies. In particular, when building mock integral field spectroscopic observat…

astro-ph.GA2024★ 2 cited

The formation histories of massive and quiescent galaxies in the 3 < z < 4.5 Universe

Themiya Nanayakkara, Karl Glazebrook, Corentin Schreiber +16

We present the formation histories of 19 massive () quiescent (sSFR) galaxy candidates at z~3.0-4.5 observed using JWST/NIRSpec. This completes th…

astro-ph.CO2024★ 45 cited

The SRG/eROSITA All-Sky Survey: Dark Energy Survey Year 3 Weak Gravitational Lensing by eRASS1 selected Galaxy Clusters

S. Grandis, V. Ghirardini, S. Bocquet +119

Number counts of galaxy clusters across redshift are a powerful cosmological probe, if a precise and accurate reconstruction of the underlying mass distribution is performed -- a c…

astro-ph.CO2023

Preparing for low surface brightness science with the Vera C. Rubin Observatory: A Comparison of Observable and Simulated Intracluster Light Fractions

Sarah Brough, Syeda Lammim Ahad, Yannick M. Bahe +13

Intracluster Light (ICL) provides an important record of the interactions galaxy clusters have undergone. However, we are limited in our understanding by our measurement methods. T…