Brief Review on Scalar Field Dark Matter Models

• DOI: 10.3389/fspas.2019.00047
• Publication Date: 2019-07-12T12:41:00Z
• Authors: L. Arturo Ureña-L...
• Keywords: Structure formation

The existence of dark matter in the Universe has been solidly established last decades, after arrival accurate cosmological and astrophysical observations, some consider it most challenging problem modern physics. Given magnitude problem, one cannot discard new particles with properties that may look exotic comparison our current understanding ordinary matter. This is case for so-called scalar field model, which assumes a (probably fundamental) very tiny mass can have observable consequences formation structure. We present here brief account main an ultra-light (with masses order $10^{-22} \, \mathrm{eV}/c^2$) how different observations used two decades to put constraints on its physical parameters. Among other topics, we review solutions discuss features self-gravitating equilibrium configurations, revisit gravitational collapse galaxies, revise possibility find soliton structure center halos.