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A high fidelity Milky Way simulation with Kraken, Gaia-Enceladus, and Sequoia analogues: clues to their accretion histories
Guacimara García-Bethencourt, Chris B. Brook, Robert J. J. Grand +1
Within a simulated Milky Way-like galaxy, we identify and analyse analogues of the Gaia-Enceladus (GE), Kraken and Sequoia mergers that each matches remarkably well observational r…
Constraining gas metal mixing strength in simulations using observations of the Milky Way's disc
Jorge Sarrato-Alós, Christopher Brook, Arianna Di Cintio
This work explores the mixing rate of metals in the interstellar medium (ISM), comparing observational constraints from our solar neighbourhood to high resolution cosmological hydr…
A probabilistic deep learning model to distinguish cusps and cores in dwarf galaxies
J. Expósito-Márquez, C. B. Brook, M. Huertas-Company +4
Numerical simulations within a cold dark matter (DM) cosmology form halos whose density profiles have a steep inner slope (`cusp'), yet observations of galaxies often point towards…
A shallow dark matter halo in Ultra Diffuse Galaxy AGC 242019: are UDGs structurally similar to low surface brightness galaxies?
Chris B. Brook, Arianna Di Cintio, Andrea V. Maccio +1
A central question regarding Ultra Diffuse Galaxies (UDGs) is whether they are a separate category to Low Surface Brightness (LSB) galaxies, or just their natural continuation towa…
NIHAO-LG: The uniqueness of Local Group dwarf galaxies
Nikhil Arora, Andrea V. Macció, Stéphane Courteau +8
Recent observational and theoretical studies of the Local Group (LG) dwarf galaxies have highlighted their unique star-formation history, stellar metallicity, gas content, and kine…
NIHAO XXIV: Rotation or pressure supported systems? Simulated Ultra Diffuse Galaxies show a broad distribution in their stellar kinematics
Salvador Cardona-Barrero, Arianna Di Cintio, Christopher B. A. Brook +4
In recent years a new window on galaxy evolution opened, thanks to the increasing discovery of galaxies with a low surface brightness, such as Ultra Diffuse Galaxies (UDGs). The fo…