The 3 Ms Chandra Campaign on Sgr A*: A Census of X-ray Flaring Activity
  from the Galactic Center
  Over the last decade, X-ray observations of Sgr A* have revealed a black hole
in a deep sleep, punctuated roughly once per day by brief flares. The extreme
X-ray faintness of this supermassive black hole has been a long-standing puzzle
in black hole accretion. To study the accretion processes in the Galactic
Center, Chandra (in concert with numerous ground- and space-based
observatories) undertook a 3 Ms campaign on Sgr A* in 2012. With its excellent
observing cadence, sensitivity, and spectral resolution, this Chandra X-ray
Visionary Project (XVP) provides an unprecedented opportunity to study the
behavior of the closest supermassive black hole. We present a progress report
from our ongoing study of X-ray flares, including the brightest flare ever seen
from Sgr A*. Focusing on the statistics of the flares and the quiescent
emission, we discuss the physical implications of X-ray variability in the
Galactic Center.
