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The MAGE Project: Size Evolution and Disk Formation in Massive Galaxies at Cosmic Dawn
Zhiyuan Yao, Avishai Dekel, Romain Teyssier +5
We investigate size evolution and disk formation with a new suite of eleven cosmological zoom-in simulations, Massive Assembly of Galaxies in the Early universe (MAGE), run with RA…
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…
Euclid preparation. XLIII. Measuring detailed galaxy morphologies for Euclid with machine learning
Euclid Collaboration, B. Aussel, S. Kruk +255
The Euclid mission is expected to image millions of galaxies with high resolution, providing an extensive dataset to study galaxy evolution. We investigate the application of deep…
Euclid preparation. XXX. Performance assessment of the NISP Red-Grism through spectroscopic simulations for the Wide and Deep surveys
Euclid Collaboration, L. Gabarra, C. Mancini +232
This work focuses on the pilot run of a simulation campaign aimed at investigating the spectroscopic capabilities of the Euclid Near-Infrared Spectrometer and Photometer (NISP), in…
Euclid preparation. XXV. The Euclid Morphology Challenge -- Towards model-fitting photometry for billions of galaxies
Euclid Collaboration, E. Merlin, M. Castellano +218
The ESA Euclid mission will provide high-quality imaging for about 1.5 billion galaxies. A software pipeline to automatically process and analyse such a huge amount of data in real…
INFERNO: Galactic winds in dwarf galaxies with star-by-star simulations including runaway stars
Eric P. Andersson, Oscar Agertz, Florent Renaud +1
The formation and evolution of galaxies have proved sensitive to the inclusion of stellar feedback, which is therefore crucial to any successful galaxy model. We present INFERNO, a…
Code Comparison in Galaxy Scale Simulations with Resolved Supernova Feedback: Lagrangian vs. Eulerian Methods
Chia-Yu Hu, Matthew C. Smith, Romain Teyssier +8
We present a suite of high-resolution simulations of an isolated dwarf galaxy using four different hydrodynamical codes: {\sc Gizmo}, {\sc Arepo}, {\sc Gadget}, and {\sc Ramses}. A…
Euclid preparation: XXIII. Derivation of galaxy physical properties with deep machine learning using mock fluxes and H-band images
Euclid Collaboration, L. Bisigello, C. J. Conselice +196
Next generation telescopes, like Euclid, Rubin/LSST, and Roman, will open new windows on the Universe, allowing us to infer physical properties for tens of millions of galaxies. Ma…
The driving mode of shock-driven turbulence
Saee Dhawalikar, Christoph Federrath, Seth Davidovits +4
Turbulence in the interstellar medium (ISM) is crucial in the process of star formation. Shocks produced by supernova explosions, jets, radiation from massive stars, or galactic sp…
Dust dynamics in RAMSES -- I. Methods and turbulent acceleration
Eric R. Moseley, Romain Teyssier, B. T. Draine
Supernova ejecta and stellar winds are believed to produce interstellar dust grains with relatively large sizes. Smaller grains can be produced via the shattering of large grains t…
A barred Milky Way surrogate from an N-body simulation
T. Tepper-Garcia, J. Bland-Hawthorn, E. Vasiliev +10
We present an N-body model for the barred Milky Way (MW) galaxy that reproduces many of its properties, including the overall mass distribution, the disc kinematics, and the proper…
Euclid preparation: XVIII. Cosmic Dawn Survey. Spitzer observations of the Euclid deep fields and calibration fields
Andrea Moneti, H. J. McCracken, M. Shuntov +194
We present a new infrared survey covering the three Euclid deep fields and four other Euclid calibration fields using Spitzer's Infrared Array Camera (IRAC). We have combined these…
A Subgrid Turbulent Mean Field Dynamo Model for Cosmological Galaxy Formation Simulations
Yuankang Liu, Michael Kretschmer, Romain Teyssier
Magnetic fields have been included in cosmological simulations of galaxy formation only recently, due to advances in numerical techniques and a better understanding of the galaxy f…
Euclid preparation: XIII. Forecasts for galaxy morphology with the Euclid Survey using Deep Generative Models
Euclid Collaboration, H. Bretonnière, M. Huertas-Company +193
We present a machine learning framework to simulate realistic galaxies for the Euclid Survey. The proposed method combines a control on galaxy shape parameters offered by analytic…
On the origin of surprisingly cold gas discs in galaxies at high redshift
Michael Kretschmer, Avishai Dekel, Romain Teyssier
We address the puzzling observational indications for very "cold" galactic discs at redshifts , an epoch when discs are expected to be highly perturbed. Using a high-r…
Redshift and stellar mass dependence of intrinsic shapes of disc-dominated galaxies from COSMOS observations below
Kai Hoffmann, Clotilde Laigle, Nora Elisa Chisari +4
The high abundance of disc galaxies without a large central bulge challenges predictions of current hydrodynamic simulations of galaxy formation. We aim to shed light on the format…
Efficient early stellar feedback can suppress galactic outflows by reducing supernova clustering
Matthew C. Smith, Greg L. Bryan, Rachel S. Somerville +4
We present a novel set of stellar feedback models, implemented in the moving-mesh code Arepo, designed for galaxy formation simulations with near-parsec (or better) resolution. The…
EDGE: A new approach to suppressing numerical diffusion in adaptive mesh simulations of galaxy formation
Andrew Pontzen, Martin P. Rey, Corentin Cadiou +4
We introduce a new method to mitigate numerical diffusion in adaptive mesh refinement (AMR) simulations of cosmological galaxy formation, and study its impact on a simulated dwarf…
Cosmological simulations of the same spiral galaxy: the impact of baryonic physics
Arturo Nuñez-Castiñeyra, Emmanuel Nezri, Julien Devriendt +1
The interplay of star formation and supernova (SN) feedback in galaxy formation is a key element for understanding galaxy evolution. Since these processes occur at small scales, it…
Rapid Filamentary Accretion as the Origin of Extended Thin Discs
Michael Kretschmer, Oscar Agertz, Romain Teyssier
Galactic outflows driven by stellar feedback are crucial for explaining the inefficiency of star formation in galaxies. Although strong feedback can promote the formation of galact…
The loss of the intra-cluster medium in globular clusters
W. Chantereau, P. Biernacki, M. Martig +3
Stars in globular clusters (GCs) lose a non negligible amount of mass during their post-main sequence evolution. This material is then expected to build up a substantial intra-clus…
Galactic ionising photon budget during the Epoch of Reionisation in the Cosmic Dawn II simulation
Joseph S. W. Lewis, Pierre Ocvirk, Dominique Aubert +10
Cosmic Dawn ("CoDa") II yields the first statistically-meaningful determination of the relative contribution to reionization by galaxies of different halo mass, from a fully-couple…
Molecular clouds in the Cosmic Snake normal star-forming galaxy 8 billion years ago
Miroslava Dessauges-Zavadsky, Johan Richard, Françoise Combes +12
The cold molecular gas in contemporary galaxies is structured in discrete cloud complexes. These giant molecular clouds (GMCs), with - solar masses and radii of 5-100 p…
Emission from the circumgalactic medium: from cosmological zoom-in simulations to multiwavelength observables
R. Augustin, S. Quiret, B. Milliard +14
We simulate the flux emitted from galaxy halos in order to quantify the brightness of the circumgalactic medium (CGM). We use dedicated zoom-in cosmological simulations with the hy…