Galactic condensates composed of multiple axion species

@article{Eby2020GalacticCC,
  title={Galactic condensates composed of multiple axion species},
  author={Joshua Eby and Madelyn Leembruggen and Lauren Street and P{\'e}ter Sur{\'a}nyi and L. C. Rohana Wijewardhana},
  journal={Journal of Cosmology and Astroparticle Physics},
  year={2020},
  volume={2020},
  pages={020 - 020}
}
Ultralight scalar dark matter has been proposed to constitute a component of dark matter, though the minimal scenarios have increasingly become constrained. In this work, we analyze scenarios where the dark matter consists of more than one ultralight boson, each with different masses. This potentially leads to formation of gravitationally-bound Bose-Einstein condensates with structures that are very different from condensates composed of a single scalar field. By generalizing from the well… 
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References

SHOWING 1-10 OF 57 REFERENCES

A model for halo formation with axion mixed dark matter

There are several issues to do with dwarf galaxy predictions in the standard CDM cosmology that have suscitated much recent debate about the possible modication of the nature of dark matter as

Cosmological Constraints on Bose-Einstein-Condensed Scalar Field Dark Matter

Despite the great successes of the cold dark matter (CDM) model in explaining a wide range of observations of the global evolution and the formation of galaxies and large-scale structure in the

Repulsive dark matter

Stability of condensed fuzzy dark matter halos

Stability properties of gravitationally bound condensates composed of ultralight axionic Fuzzy Dark Matter (FDM) are studied. Previous work has shown that astrophysical collisions could make

Galaxy formation with BECDM - I. Turbulence and relaxation of idealized haloes.

TLDR
A theoretical analysis of some unexplored aspects of relaxed Bose-Einstein condensate dark matter (BECDM) haloes suggests that the vorticity in BECDM haloes is homogeneous, similar to thermally-driven counterflow BEC systems from condensed matter physics, in contrast to a k-5/3 Kolmogorov power law seen in mechanically-driven quantum systems.

Subhalo mass function and ultralight bosonic dark matter

Warm dark matter has recently become increasingly constrained by observational inferences about the low-mass end of the subhalo mass function, which would be suppressed by dark matter free streaming

Two-component axionic dark matter halos

We consider a two-component dark matter halo (DMH) of a galaxy containing ultra-light axions (ULA) of different mass. The DMH is described as a Bose-Einstein condensate (BEC) in its ground state. In

Ultralight scalars as cosmological dark matter

Many aspects of the large-scale structure of the Universe can be described successfully using cosmological models in which 27±1% of the critical mass-energy density consists of cold dark matter

Ultralight Repulsive Dark Matter and BEC

...