Capture of dark matter particles by a galaxy in the case of a bimodal distribution of their velocities
arXiv:2209.01819 · doi:10.31526/LHEP.2023.331
Abstract
We have analyzed the rate of capture of dark matter (DM) particles by the galaxy in the case of the existence of two different types of DM or a bimodal velocity distribution function for DM. It is shown that, in addition to the scenario considered in our previous work which is based on the assumption of an unimodal distribution, more complex scenarios are possible in which the transition to the state of intense capture and/or exit from it can occur in two stages. A detailed description is given of the change in the curve describing the rate of capture of dark matter particles as a function of the rate of increase in the baryon mass of the galaxy for various values of the rate of decrease of the DM density.
arXiv comment5 papers, 4 figures
References in corpus (6)
- Particle Dark Matter: Evidence, Candidates and Constraints
- Response of dark matter halos to condensation of baryons: cosmological simulations and improved adiabatic contraction model
- Dark matter and the early Universe: a review
- Universal structure of dark matter haloes over a mass range of 20 orders of magnitude
- Galaxy-Induced Transformation of Dark Matter Halos
- The MillenniumTNG Project: The large-scale clustering of galaxies