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, Newtonian equations motion a self-gravitating scalar field are described by Schr\"odinger-Poisson equations. We investigate mergers ground state (boson star) configurations with varying mass ratios, relative phases, orbital angular momenta initial separation primary goal understand loss emerging core gravitational...

We simulate the formation and evolution of ultralight bosonic dark matter halos from cosmological initial conditions. Using zoom-in techniques we are able to resolve detailed interior structure halos. observe solitonic cores confirm core-halo mass relation previously found by Schive et al. The exhibit strong quasi-normal oscillations that remain largely undamped on evolutionary timescales. On other hand, no conclusive growth core condensation or relaxation can be detected. In incoherent halo...

The era of precision cosmology allows us to test the composition dark matter. Mixed ultralight or fuzzy matter (FDM) is a cosmological model with composed combination particles mass $m\ensuremath{\le}{10}^{\ensuremath{-}20}\text{ }\text{ }\mathrm{eV}$, an astrophysical de Broglie wavelength, and negligible wavelength sharing properties cold (CDM). In this work, we simulate volumes wave function for component coupled gravitationally CDM particles. We investigate impact mixture FDM in various...

In the effective theory of isoscalar and isovector dark matter-nucleon interactions mediated by a heavy spin-1 or spin-0 particle, 8 isotope-dependent nuclear response functions can be generated in matter scattering nuclei. We compute for 16 most abundant elements Sun, i.e. H, $^{3}$He, $^{4}$He, $^{12}$C, $^{14}$N, $^{16}$O, $^{20}$Ne, $^{23}$Na, $^{24}$Mg, $^{27}$Al, $^{28}$Si, $^{32}$S, $^{40}$Ar, $^{40}$Ca, $^{56}$Fe, $^{58}$Ni, through numerical shell model calculations. use our to rate...

The distinctive effects of fuzzy dark matter are most visible at nonlinear galactic scales. We present the first simulations mixed and cold matter, obtained with an extended version nyx code. Fuzzy (or ultralight or axionlike) dynamics governed by comoving Schr\"odinger-Poisson equation. This is evolved a pseudospectral algorithm on root grid, finite differencing up to six levels adaptive refinement. Cold existing $N$-body implementation in nyx. investigations spherical collapse models,...

We study tidal stripping of fuzzy dark matter (FDM) subhalo cores using simulations the Schrödinger-Poisson equations and analyze dynamics disruption, highlighting differences with standard cold matter. Mass loss outside radius forces core to relax into a less compact configuration, lowering radius. As characteristic solitonic scales inversely its mass, results in runaway effect rapid disruption once central density drops below $4.5$ times average host within orbital Additionally, we find...

We present zoom-in simulations of fuzzy dark matter (FDM) halos including baryons and star formation with sufficient resolution to follow the evolution central solitons. find that their properties are determined by local velocity dispersion in combined matter-baryon gravitational potential. This motivates a simple prescription estimate radial density profiles FDM cores presence baryons. As become more massive compact if included, galactic rotation curve measurements likely harder reconcile FDM.

The Universe may pass through an effectively matter-dominated epoch between inflation and Big Bang Nucleosynthesis during which gravitationally bound structures can form on subhorizon scales. In particular, the inflaton field collapse into halos, forming "large scale" structure in very early universe. We combine N-body simulations with high-resolution zoom-in regions non-relativistic Schr\"odinger-Poisson equations are used to resolve detailed, wave-like of halos. Solitonic cores inside...

Fuzzy dark matter (FDM) made of ultralight bosonic particles is a viable alternative to cold with clearly distinguishable small-scale features in collapsed structures. On large scales, it behaves gravitationally like deviating only by cutoff the initial power spectrum and can be studied using N-body methods. In contrast, wave interference effects near de Broglie scale result new phenomena unique FDM. Interfering modes filaments halos yield stochastically oscillating granular structure which...

In the context of structure formation with ultralight axion dark matter, we offer an alternative explanation for mass relation solitonic cores and their host halos observed in numerical simulations. Our argument is based entirely on gain that occurs during major mergers binary largely independent initial core-halo assigned to hosts have just collapsed. We find a between halo ${M}_{h}$ corresponding core ${M}_{c}$, ${M}_{c}\ensuremath{\propto}{M}_{h}^{2\ensuremath{\beta}\ensuremath{-}1}$,...

The era of precision cosmology allows us to test the composition dark matter. Mixed ultralight or fuzzy matter (FDM) is a cosmological model with composed combination particles mass $m\leq 10^{-20}\;\mathrm{eV}$, an astrophysical de Broglie wavelength, and negligible wavelength sharing properties cold (CDM). In this work, we simulate volumes wave function for component coupled gravitationally CDM particles. We investigate impact mixture FDM in various proportions...