Ultra-compact X-ray binaries in the Galactic Bulge
  We model the present-day number and characteristics of Ultra-compact X-ray
binaries (UCXBs) in the Galactic Bulge. The main objective is to compare the
results with the forthcoming data from the Galactic Bulge Survey (GBS) in order
to learn about formation scenarios, notably core collapse supernova rate,
common envelope evolution and dynamical interactions, as well as the binary
initial mass function. We use a binary population synthesis code and detailed
stellar evolutionary tracks, combined with observations of the 11 known UCXBs.
We predict a few hundred faint UCXBs with periods of 20-40 minutes that would
be detectable by the GBS.
