1. AMIBA: FIRST-YEAR RESULTS FOR SUNYAEV-ZEL'DOVICH EFFECT
- Author
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Yao-Wei Liao, Su-Hao Chang, Su-Wei Chang, Jiun-Huei Proty Wu, Sandor M. Molnar, Katy Lancaster, Cha-Hao Chang, Chih-Chiang Han, Mark Birkinshaw, Chao-Te Li, Philippe Raffin, Fu-Cheng Wang, Guillaume Chereau, Guo-Chin Liu, Homin Jiang, Tzihong Chiueh, Hiroaki Nishioka, Michael Kesteven, Chi-Wei Huang, Derek Kubo, Pierre Martin-Cocher, Yuh-Jing Hwang, Kai-Yang Lin, Pablo Altimirano, Keiichi Umetsu, Patrick M. Koch, Paul T. P. Ho, Warwick Wilson, Ming-Tang Chen, and Yao-De Huang
- Subjects
Physics ,Nuclear and High Energy Physics ,Offset (computer science) ,Cosmic microwave background ,General Physics and Astronomy ,Astronomy ,Astronomy and Astrophysics ,Astrophysics ,Sunyaev–Zel'dovich effect ,Cosmology ,Interferometry ,Formalism (philosophy of mathematics) ,Observational cosmology ,Galaxy cluster - Abstract
We discuss the observation, analysis, and results of the first-year science operation of AMiBA, an interferometric experiment designed to study cosmology via the measurement of Cosmic Microwave Background (CMB). In 2007, we successfully observed 6 galaxy clusters (z < 0.33) through the Sunyaev-Zel'dovich effect. AMiBA is the first CMB interferometer operating at 86–102 GHz, currently with 7 close-packed antennas of 60 cm in diameter giving a synthesized resolution of around 6 arcminutes. An observing strategy with on-off-source modulation is used to remove the effects from electronic offset and ground pickup. Formalism of the analysis is given and preliminary science results are summarized. Tests for systematic effects are also addressed. We also discuss the expansion plan.
- Published
- 2008
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