The role of magnetic fields in shaping $γ$-ray emission from the Fermi bubbles

Le résumé fourni par la source

Despit e their discov ery fift een y ears ago, the nature and origin of the Fermi bubbles remain unclear . W e here inv estigat e the effect a magnetic field can have on a subsonic breeze outflow emanating from the Galactic centr e r egion. The pr esence of this magnetic field allows anisotropic diffusion of cosmic rays within the outflow, shaping the resultant cosmic ray distribution obtained out at large distances within the Galactic halo. We show that our magnet ohy drodynamic Galactic breeze model, in combination with an opening angle for the injection of cosmic rays, leads to γ-ray emission from the Fermi bubble region with relatively sharp edges.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.