Bibliographic Details
| Title: |
AMiBA: Cluster Sunyaev-Zel'dovich Effect Observations with the Expanded 13-Element Array |
| Authors: |
Lin, Kai-Yang, Nishioka, Hiroaki, Wang, Fu-Cheng, Huang, Chih-Wei Locutus, Liao, Yu-Wei, Wu, Jiun-Huei Proty, Koch, Patrick M., Umetsu, Keiichi, Chen, Ming-Tang, Chan, Shun-Hsiang, Chang, Shu-Hao, Chang, Wen-Hsuan Lucky, Cheng, Tai-An, Duy, Hoang Ngoc, Fu, Szu-Yuan, Han, Chih-Chiang, Ho, Solomon, Ho, Ming-Feng, Ho, Paul T. P., Huang, Yau-De, Jiang, Homin, Kubo, Derek Y., Li, Chao-Te, Lin, Yu-Chiung, Liu, Guo-Chin, Martin-Cocher, Pierre, Molnar, Sandor M., Nunez, Emmanuel, Oshiro, Peter, Pai, Shang-Ping, Raffin, Philippe, Ridenour, Anthony, Shih, Chia-You, Stoebner, Sara, Teo, Giap-Siong, Yeh, Jia-Long Johnny, Williams, Joshua, Birkinshaw, Mark |
| Publication Year: |
2016 |
| Collection: |
Astrophysics |
| Subject Terms: |
Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics |
| More Details: |
The Yuan-Tseh Lee Array for Microwave Background Anisotropy (AMiBA) is a co-planar interferometer array operating at a wavelength of 3mm to measure the Sunyaev-Zeldovich effect (SZE) of galaxy clusters. In the first phase of operation -- with a compact 7-element array with 0.6m antennas (AMiBA-7) -- we observed six clusters at angular scales from 5\arcmin to 23\arcmin. Here, we describe the expansion of AMiBA to a 13-element array with 1.2m antennas (AMiBA-13), its subsequent commissioning, and our cluster SZE observing program. The most important changes compared to AMiBA-7 are (1) array re-configuration with baselines ranging from 1.4m to 4.8m covering angular scales from 2\arcmin to 11.5\arcmin, (2) thirteen new lightweight carbon-fiber-reinforced plastic (CFRP) 1.2m reflectors, and (3) additional correlators and six new receivers. From the AMiBA-13 SZE observing program, we present here maps of a subset of twelve clusters. In highlights, we combine AMiBA-7 and AMiBA-13 observations of Abell 1689 and perform a joint fitting assuming a generalized NFW pressure profile. Our cylindrically integrated Compton-y values for this cluster are consistent with the BIMA/OVRA, SZA, and Planck results. We report the first targeted SZE detection towards the optically selected galaxy cluster RCS J1447+0828, and we demonstrate the ability of AMiBA SZE data to serve as a proxy for the total cluster mass. Finally, we show that our AMiBA-SZE derived cluster masses are consistent with recent lensing mass measurements in the literature.
Comment: 21 pages, 19 figures; Accepted by ApJ; Comparison between AMiBA-SZE and lensing masses has been newly included in the accepted version |
| Document Type: |
Working Paper |
| DOI: |
10.3847/0004-637X/830/2/91 |
| Access URL: |
http://arxiv.org/abs/1605.09261 |
| Accession Number: |
edsarx.1605.09261 |
| Database: |
arXiv |
