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An observational test for star formation prescriptions in cosmological hydrodynamical simulations
Tobias Buck, Aaron A. Dutton, Andrea V. Macciò
State-of-the-art cosmological hydrodynamical simulations of galaxy formation have reached the point at which their outcomes result in galaxies with ever more realism. Still, the em…
Formation of ultra-diffuse galaxies in the field and in galaxy groups
Fangzhou Jiang, Avishai Dekel, Jonathan Freundlich +4
We study ultra-diffuse galaxies (UDGs) in zoom in cosmological simulations, seeking the origin of UDGs in the field versus galaxy groups. We find that while field UDGs arise from d…
Quantifying inhomogeneities in the HI distributions of simulated galaxies
Hind Al Noori, Andrea V. Macciò, Aaron A. Dutton +1
The NIHAO cosmological simulations form a collection of a hundred high-resolution galaxies. We used these simulations to test the impact of stellar feedback on the morphology of th…
A deeper look into the structure of ΛCDM haloes: correlations between halo parameters from Einasto fits
Silviu M. Udrescu, Aaron A. Dutton, Andrea V. Macciò +1
We used high resolution dark matter only cosmological simulations to investigate the structural properties of Lambda Cold Dark Matter (CDM) haloes over cosmic time. The haloes i…
Angular momentum evolution of bulge stars in disc galaxies in NIHAO
Liang Wang, Danail Obreschkow, Claudia del P. Lagos +6
We study the origin of bulge stars and their angular momentum (AM) evolution in 10 spiral galaxies with baryonic masses above M in the NIHAO galaxy formation simul…
NIHAO XX: The impact of the star formation threshold on the cusp-core transformation of cold dark matter haloes
Aaron A. Dutton, Andrea V. Macciò, Tobias Buck +3
We use cosmological hydrodynamical galaxy formation simulations from the NIHAO project to investigate the impact of the threshold for star formation on the response of the dark mat…