The second phase of AMiBA consisting of thirteen 1.2m antennas was completed at the end of 2009
The second phase of AMiBA consisting of thirteen 1.2m antennas was completed at the end of 2009. The 13-element array, with improved resolution and sensitivity, can be effectively study clusters that are much further away from us. Scientific operations resumed in 2011. The background shows another volcanic peak, Mauna Kea.