Alternative explanation of Fermi Bubbles using Scalar Field Dark Matter
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 magnetic fields observed in our galaxy. In previous works an alternative explanation for VPOS and the magnetic fields of our galaxy was proposed using the SFDM excited states, explaining the anomalous trajectories in a natural and simple way. In this work we use the same dark matter endowed with a extremely small charge that explains the magnetic fields of our galaxy to show that these excited states of SFDM can provide a very simple and natural explanation for Fermi Bubbles (FBs). If this assumption is correct, we should see FBs in several more galaxies, these observations would take place in the near future and could be crucial to the ultimate answer to the nature of dark matter.