TY - JOUR
T1 - Array for microwave background anisotropy
T2 - Observations, data analysis, and results for sunyaev-zel'dovich effects
AU - Wu, Jiun Huei Proty
AU - Ho, Paul T P
AU - Huang, Chih Wei Locutus
AU - Koch, Patrick M.
AU - Liao, Yu Wei
AU - Lin, Kai Yang
AU - Liu, Guo Chin
AU - Molnar, Sandor M.
AU - Nishioka, Hiroaki
AU - Umetsu, Keiichi
AU - Wang, Fu Cheng
AU - Altamirano, Pablo
AU - Birkinshaw, Mark
AU - Chang, Chia Hao
AU - Chang, Shu Hao
AU - Chang, Su Wei
AU - Chen, Ming Tang
AU - Chiueh, Tzihong
AU - Han, Chih Chiang
AU - Huang, Yau De
AU - Hwang, Yuh Jing
AU - Jiang, Homin
AU - Kesteven, Michael
AU - Kubo, Derek Y.
AU - Lancaster, Katy
AU - Li, Chao Te
AU - Martin-Cocher, Pierre
AU - Oshiro, Peter
AU - Raffin, Philippe
AU - Wei, Tashun
AU - Wilson, Warwick
PY - 2009/1/1
Y1 - 2009/1/1
N2 - We present observations, analysis, and results for the first-year operation of Array for Microwave Background Anisotropy (AMiBA), an interferometric experiment designed to study cosmology via the measurement of cosmic microwave background (CMB). AMiBA is the first CMB interferometer operating at 3 mm to have reported successful results, currently with seven close-packed antennas of 60 cm diameter giving a synthesized resolution of around 6′. During 2007, AMiBA detected the Sunyaev-Zel'dovich effects (SZEs) of six galaxy clusters at redshift 0.091 ≤ z ≤ 0.322. An observing strategy with on-off-source switching is used to minimize the effects from electronic offset and ground pickup. Planets were used to test the observational capability of AMiBA and to calibrate the conversion from correlator time-lag data to visibilities. The detailed formalism for data analysis is given. We summarize our early tests including observations of planets and quasars, and present images, visibility profiles, the estimated central coordinates, sizes, and SZE amplitudes of the galaxy clusters. Scientific implications are summarized. We also discuss possible systematic effects in the results.
AB - We present observations, analysis, and results for the first-year operation of Array for Microwave Background Anisotropy (AMiBA), an interferometric experiment designed to study cosmology via the measurement of cosmic microwave background (CMB). AMiBA is the first CMB interferometer operating at 3 mm to have reported successful results, currently with seven close-packed antennas of 60 cm diameter giving a synthesized resolution of around 6′. During 2007, AMiBA detected the Sunyaev-Zel'dovich effects (SZEs) of six galaxy clusters at redshift 0.091 ≤ z ≤ 0.322. An observing strategy with on-off-source switching is used to minimize the effects from electronic offset and ground pickup. Planets were used to test the observational capability of AMiBA and to calibrate the conversion from correlator time-lag data to visibilities. The detailed formalism for data analysis is given. We summarize our early tests including observations of planets and quasars, and present images, visibility profiles, the estimated central coordinates, sizes, and SZE amplitudes of the galaxy clusters. Scientific implications are summarized. We also discuss possible systematic effects in the results.
KW - Cosmic microwave background
KW - Cosmology: observations
KW - Galaxies: clusters: general
KW - Methods: data analysis
UR - http://www.scopus.com/inward/record.url?scp=75149176337&partnerID=8YFLogxK
U2 - 10.1088/0004-637X/694/2/1619
DO - 10.1088/0004-637X/694/2/1619
M3 - Article (Academic Journal)
AN - SCOPUS:75149176337
SN - 0004-637X
VL - 694
SP - 1619
EP - 1628
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 2
ER -