|19th of July 2016|
|OH masers in the Galactic Centre region|
|by Haihua Qiao (ICRAR/Curtin University)|
|This is the preliminary result of OH masers
in the Galactic Centre region as obtained with CSIRO's Australia Telescope
Compact Array (ATCA). The top panel shows the OH masers associated
with circumstellar envelops of evolved stars and the bottom panel shows the
OH masers associated with star forming regions. |
Evolved star OH masers are widely distributed in Galactic Latitude because they are either close to us, or they originate in the Galactic Bulge. Star formation OH masers are tightly constrained to the Galactic Plane because they are located at the distance to the Galactic Centre. It is interesting to note that the distribution of star formation OH masers is evenly distributed with respect to Galactic Longitude. These OH masers do not follow the dense gas concentrations that dominate at positive Galactic longitudes.
This work is presented as a poster at the IAU 322 symposium.