Lumen modeling of IllustrisTNG50 shows that high ionization parameters from massive star clusters plus enhanced nitrogen abundances are needed to reproduce the extreme [OIII]/Hβ, [OIII]/[OII], and [NII]/Hα ratios seen in z>3 galaxies.
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Hydrodynamical simulations underproduce faint compact galaxies at z>3 relative to CANDELS data, with the mismatch persisting after completeness corrections and pointing to deficiencies in star formation and feedback modeling.
A large collaboration compiles and compares merger rate predictions for massive black holes across multiple galaxy formation models to forecast LISA detections and quantify uncertainties.
cuRAMSES replaces Hilbert-curve domain decomposition with recursive k-section partitioning and adds Morton-key hashing plus spatial binning to cut communication volume and accelerate feedback routines by up to 260x while preserving conservation to 0.5%.
COLIBRE simulations find kinematic galaxy morphology peaks in rotational support at stellar masses of 1-2 x 10^10 solar masses and correlates more with internal properties like gas richness than with host halo properties.
COLIBRE calibrates supernova and AGN feedback parameters in multi-phase ISM cosmological simulations using emulator-based fitting to reproduce the z=0 galaxy stellar mass function and size-stellar mass relation at three resolutions.
citing papers explorer
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Origins of Extreme Emission-Line Ratios in z > 3 Galaxies: Insights from the Lumen Model
Lumen modeling of IllustrisTNG50 shows that high ionization parameters from massive star clusters plus enhanced nitrogen abundances are needed to reproduce the extreme [OIII]/Hβ, [OIII]/[OII], and [NII]/Hα ratios seen in z>3 galaxies.
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Probing the faint-end of simulated galaxy counts at z>3
Hydrodynamical simulations underproduce faint compact galaxies at z>3 relative to CANDELS data, with the mismatch persisting after completeness corrections and pointing to deficiencies in star formation and feedback modeling.
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The LISA Astrophysics MBHcatalogues Project: A comparison of predictions of simulated massive black hole binaries
A large collaboration compiles and compares merger rate predictions for massive black holes across multiple galaxy formation models to forecast LISA detections and quantify uncertainties.
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cuRAMSES: Scalable AMR Optimizations for Large-Scale Cosmological Simulations
cuRAMSES replaces Hilbert-curve domain decomposition with recursive k-section partitioning and adds Morton-key hashing plus spatial binning to cut communication volume and accelerate feedback routines by up to 260x while preserving conservation to 0.5%.
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The morphologies of present-day galaxies in the COLIBRE simulations
COLIBRE simulations find kinematic galaxy morphology peaks in rotational support at stellar masses of 1-2 x 10^10 solar masses and correlates more with internal properties like gas richness than with host halo properties.
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COLIBRE: calibrating subgrid feedback in cosmological simulations that include a cold gas phase
COLIBRE calibrates supernova and AGN feedback parameters in multi-phase ISM cosmological simulations using emulator-based fitting to reproduce the z=0 galaxy stellar mass function and size-stellar mass relation at three resolutions.