S0-2 star, G1- and G2-objects and flaring activity of the Milky Way's
  Galactic Center black hole in 2019
  In 2019, the Galactic center black hole Sgr A* produced an unusually high
number of bright near-infrared flares, including the brightest-ever detected
flare (Do et al 2019, Gravity Collaboration 2020). We propose that this
activity was triggered by the near simultaneous infall of material shed by G1
and G2 objects due to their interaction with the background accretion flow. We
discuss mechanisms by which S-stars and G-objects shed material, and estimate
both the quantity of material and the infall time to reach the black hole.
