Probing the Density in the Galactic Center Region: Wind‐blown Bubbles and High‐Energy Proton Constraints

Recent observations of the Galactic center in high-energy gamma-rays (above0.1TeV) have opened up new ways to study this region, from understanding theemission source of these high-energy photons to constraining the environment inwhich they are formed. We present a revised theoretical density model of theinner 5pc surrounding Sgr A* based on the fact that the underlying structure ofthis region is dominated by the winds from the Wolf-Rayet stars orbiting SgrA*. An ideal probe and application of this density structure is this highenergy gamma-ray emission. We assume a proton-scattering model for theproduction of these gamma-rays and then determine first whether such a model isconsistent with the observations and second whether we can use theseobservations to further constrain the density distribution in the Galacticcenter.Comment: 36 pages including 17 figures, submitted to ApJ, comments welcom