Ground-state OH maser distributions in the Galactic Centre region
  Ground-state OH masers identified in the Southern Parkes Large-Area Survey in
Hydroxyl were observed with the Australia Telescope Compact Array to obtain
positions with high accuracy ($\sim$1\,arcsec). We classified these OH masers
into evolved star OH maser sites, star formation OH maser sites, supernova
remnant OH maser sites, planetary nebula OH maser sites and unknown maser sites
using their accurate positions. Evolved star and star formation OH maser sites
in the Galactic Centre region (between Galactic longitudes of $-5^{\circ}$ to
$+5^{\circ}$ and Galactic latitudes of $-2^{\circ}$ and $+2^{\circ}$) were
studied in detail to understand their distributions.
