Puzzling Ultra-Diffuse Galaxy Evolution (PUDGE). I. The existence of a Nube-like galaxy in IllustrisTNG
Nataša Pavlov; Ana Mitrašinović · 2025 · arXiv
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
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The finding, in one line
“The studies using cosmological and zoom-in simulations, which assume CDM, failed to replicate galaxies with the structural properties of Nube.”
Abstract (excerpt)
The recent discovery of the most extended ultra-diffuse galaxy (UDG), Nube, has raised yet another question about the validity of the cold dark matter (CDM) model. The studies using cosmological and zoom-in simulations, which assume CDM, failed to replicate galaxies with the structural properties of Nube. However, the simulation box or the examined population of UDGs may be too narrow to fully capture the range of effects that can lead to the formation of such extraordinary galaxies. In this work we present a case study of a Nube-like galaxy from TNG100, the most extended simulated UDG examine
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Metadata source: arXiv