Fermi Bubbles in Scalar Field Dark Matter halos
  In recent times, the Scalar Field Dark Matter (SFDM) model (also called
Fuzzy, Wave, Ultralight dark matter model) has received much attention due to
its success in describing dark matter on both cosmological and galactic scales.
Several challenges of the Cold Dark Matter (CDM) model can be explained very
easily and naturally by the SFDM model. Two of these challenges are to describe
the anomalous trajectories of satellite galaxies called the Vast Polar
Structure (VPOS) and to explain the Fermi Bubbles (FB) observed in our galaxy.
In Phys.Rev.D103(2021)083535 an alternative explanation for VPOS was shown
using the SFDM excited states, explaining the anomalous trajectories in a
natural and simple way. In this work we use the same dark matter structure to
show that these excited states of the SFDM can provide a very simple and
natural explanation for the FB, assuming that the SFDM is a kind of dark boson.
If this assumption is correct, we should see FB in several more galaxies and
continue to see gamma-ray events at higher energies, these observations would
take place in the near future and could be crucial to the ultimate answer to
the nature of dark matter.
