S0-2 star, G1- and G2-objects and flaring activity of the Milky Way's Galactic Center black hole in 2019

2020 
The near-infrared flaring activity of the Galactic center black hole Sgr A* in 2019 was unusual in terms of the high number of bright flares, including the brightest-ever detected flare (Do et al 2019, Gravity Collaboration 2020). We explore whether this flaring activity may be connected to the close approaches of famous G-objects (G1 and G2) and/or S-stars. We discuss mechanisms by which stars and G-objects shed material and estimate its amount and the infall time to reach the black hole. We conclude that the flaring activity of 2019 likely result from the temporary increase in accretion rate onto the black hole due to the near simultaneous infall of the leftover material shed by G1- and G2-objects.
    • Correction
    • Source
    • Cite
    • Save
    • Machine Reading By IdeaReader
    33
    References
    0
    Citations
    NaN
    KQI
    []