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Core-halo mass relation of ultralight axion dark matter from merger history
Xiaolong Du, Christoph Behrens, Jens C. Niemeyer +1
In the context of structure formation with ultralight axion dark matter, we offer an alternative explanation for the mass relation of solitonic cores and their host halos observed…
Substructure of fuzzy dark matter haloes
Xiaolong Du, Christoph Behrens, Jens C. Niemeyer
We derive the halo mass function (HMF) for fuzzy dark matter (FDM) by solving the excursion set problem explicitly with a mass-dependent barrier function, which has not been done b…
Cosmological particle-in-cell simulations with ultralight axion dark matter
Jan Veltmaat, Jens C. Niemeyer
We study cosmological structure formation with ultralight axion dark matter, or "fuzzy dark matter (FDM), using a particle-mesh scheme to account for the quantum pressure arising i…
Simulations of solitonic core mergers in ultra-light axion dark matter cosmologies
Bodo Schwabe, Jens C. Niemeyer, Jan F. Engels
Using three-dimensional simulations, we study the dynamics and final structure of merging solitonic cores predicted to form in ultra-light axion dark matter halos. The classical, N…
Hot and Turbulent Gas in Clusters
Wolfram Schmidt, Jan F. Engels, Jens C. Niemeyer +1
The gas in galaxy clusters is heated by shock compression through accretion (outer shocks) and mergers (inner shocks). These processes additionally produce turbulence. To analyse t…