SWAG Water Masers in the Galactic Center
  The Galactic Center contains large amounts of molecular and ionized gas as
well as a plethora of energetic objects. Water masers are an
extinction-insensitive probe for star formation and thus ideal for studies of
star formation stages in this highly obscured region. With the Australia
Telescope Compact Array, we observed 22 GHz water masers in the entire Central
Molecular Zone with sub-parsec resolution as part of the large SWAG survey:
``Survey of Water and Ammonia in the Galactic Center''. We detect of order 600
22 GHz masers with isotropic luminosities down to ~10^-7 Lo. Masers with
luminosities of >~10^-6 Lo are likely associated with young stellar objects.
They appear to be close to molecular gas streamers and may be due to star
formation events that are triggered at pericenter passages near Sgr A*. Weaker
masers are more widely distributed and frequently show double line features, a
tell-tale sign for an origin in evolved star envelopes.
