5 papers
Halo mass functions in mixed cold and fuzzy dark matter models
Sarah C. Johnston, Simon May, Tibor Dome +5
We investigate the impact of mixed cold and fuzzy dark matter (MDM) cosmologies on the halo mass function (HMF) using numerical simulations performed with the AxiREPO framework. We…
The Impact of Fuzzy Dark Matter Dynamics on the Accumulation and Fragmentation of Primordial Gas
Alexander Tocher, Anastasia Fialkov, Simon May +4
Fuzzy Dark Matter (FDM), particularly in the eV mass regime is frequently used to characterize wave-like interference effects. It exhibits macroscopic wave properties, w…
Core Collapse Beyond the Fluid Approximation: The Late Evolution of Self-Interacting Dark Matter Halos
James Gurian, Simon May
We show that the gravothermal collapse of self-interacting dark matter (SIDM) halos can deviate from local thermodynamic equilibrium. As a consequence, the self-similar evolution p…
Early Growth of Structure in Warm Wave Dark Matter
Mustafa A. Amin, Simon May, Mehrdad Mirbabayi
We explore the growth of structure in wave-like dark matter models, where the field and density spectra are peaked at sub-horizon wavenumbers. Starting with the Schrödinger-Poisso…
Improved Halo Model Calibrations for Mixed Dark Matter Models of Ultralight Axions
Tibor Dome, Simon May, Alex Laguë +5
We study the implications of relaxing the requirement for ultralight axions to account for all dark matter in the Universe by examining mixed dark matter (MDM) cosmologies with axi…