Flares in the Galactic center I: orbiting flux tubes in Magnetically Arrested Black Hole Accretion Disks

O. Porth, Y. Mizuno, Z. Younsi +1

Recent observations of SgrA* by the GRAVITY instrument have astrometrically tracked infrared flares (IR) at distances of $\sim 10$ gravitational radii ($r_g$). In this paper, we st…