Research Gallery > The Yuan Tseh Lee Array for Microwave Background Anisotropy (AMiBA)
|The first SZE signal with the 7-element AMiBA|
Image Credit: Wu et al.
|In April 2007, we detected the first SZE signal with the 7-element AMiBA towards the galaxy cluster A2142 at a redshift of z=0.091 (Ho et al. 2009). This was followed by successful SZE detections towards five more clusters ranging from z=0.18 to 0.32 (Wu et al. 2009). The primary efforts were in the areas of calibration and data reduction, identifying and flagging of bad data, removal of systematic errors, elimination of foreground contamination from local environment, converting output from the lag correlator into u,v data points, Fourier transform of the visibilities, and compensation for poor u,v sampling or dirty beam pattern (Wu et al.2009 and Ho et al. 2009).|