AMiBA: Broadband Heterodyne CMB Interferometry
Abstract
The Y. T. Lee Array for Microwave Background (AMiBA) has reported the first science results on the detection of galaxy clusters via the Sunyaev Zel'dovich effect. The science objectives required small reflectors in order to sample large scale structures (20') while interferometry provided modest resolutions (2'). With these constraints, we designed for the best sensitivity by utilizing the maximum possible continuum bandwidth matched to the atmospheric window at 86-102GHz, with dual polarizations. A novel wide-band analog correlator was designed that is easily expandable for more interferometer elements. MMIC technology was used throughout as much as possible in order to miniaturize the components and to enhance mass production. These designs will find application in other upcoming astronomy projects. AMiBA is now in operations since 2006, and we are in the process to expand the array from 7 to 13 elements.
Cite
@article{arxiv.0902.3636,
title = {AMiBA: Broadband Heterodyne CMB Interferometry},
author = {Ming-Tang Chen and Chao-Te Li and Yuh-Jing Hwang and Homin Jiang and Pablo Altamirano and Chia-Hao Chang and Shu-Hao Chang and Su-Wei Chang and Tzi-Dar Chiueh and Tah-Hsiung Chu and Chih-Chiang Han and Yau-De Huang and Michael Kesteven and Derek Kubo and Pierre Martin-Cocher and Peter Oshiro and Philippe Raffin and Tashun Wei and Huei Wang and Warwick Wilson and Paul T. P. Ho and Chih-Wei Huang and Patrick Koch and Yu-Wei Liao and Kai-Yang Lin and Guo-Chin Liu and Sandor M. Molnar and Hiroaki Nishioka and Keiichi Umetsu and Fu-Cheng Wang and Jiun-Huei Proty Wu},
journal= {arXiv preprint arXiv:0902.3636},
year = {2011}
}
Comments
10 pages, 6 figures, ApJ in press; a version with high resolution figures available at http://www.asiaa.sinica.edu.tw/~keiichi/upfiles/AMiBA7/mtc_highreso.pdf