TY - JOUR
T1 - AMiBA
T2 - Sunyaev-zel'dovich effect-derived properties and scaling relations of massive galaxy clusters
AU - Liao, Yu Wei
AU - Wu, Jiun Huei Proty
AU - Ho, Paul T P
AU - Huang, Chih Wei Locutus
AU - Koch, Patrick M.
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 - Li, Chao Te
AU - Martin-Cocher, Pierre
AU - Oshiro, Peter
AU - Raffin, Philippe
AU - Wei, Tashun
AU - Wilson, Warwick
PY - 2010/1/1
Y1 - 2010/1/1
N2 - The Sunyaev-Zel'dovich Effect (SZE) has been observed toward six massive galaxy clusters, at redshifts 0.091 ≤ z ≤ 0.322 in the 86-102 GHz band with the Y. T. Lee Array for Microwave Background Anisotropy (AMiBA). We modify an iterative method, based on the isothermal β models, to derive the electron temperature T e, total mass M t, gas mass M g, and integrated Compton Y within r 2500, from the AMiBA SZE data. Non-isothermal universal temperature profile (UTP) β models are also considered in this paper. These results are in good agreement with those deduced from other observations. We also investigate the embedded scaling relations, due to the assumptions that have been made in the method we adopted, between these purely SZE-deduced T e, M t, M g, and Y. Our results suggest that cluster properties may be measurable with SZE observations alone. However, the assumptions built into the pure-SZE method bias the results of scaling relation estimations and need further study.
AB - The Sunyaev-Zel'dovich Effect (SZE) has been observed toward six massive galaxy clusters, at redshifts 0.091 ≤ z ≤ 0.322 in the 86-102 GHz band with the Y. T. Lee Array for Microwave Background Anisotropy (AMiBA). We modify an iterative method, based on the isothermal β models, to derive the electron temperature T e, total mass M t, gas mass M g, and integrated Compton Y within r 2500, from the AMiBA SZE data. Non-isothermal universal temperature profile (UTP) β models are also considered in this paper. These results are in good agreement with those deduced from other observations. We also investigate the embedded scaling relations, due to the assumptions that have been made in the method we adopted, between these purely SZE-deduced T e, M t, M g, and Y. Our results suggest that cluster properties may be measurable with SZE observations alone. However, the assumptions built into the pure-SZE method bias the results of scaling relation estimations and need further study.
KW - Cosmic background radiation
KW - Cosmology: observations
KW - Galaxies: clusters: general
UR - http://www.scopus.com/inward/record.url?scp=77950264913&partnerID=8YFLogxK
U2 - 10.1088/0004-637X/713/1/584
DO - 10.1088/0004-637X/713/1/584
M3 - Article (Academic Journal)
AN - SCOPUS:77950264913
SN - 0004-637X
VL - 713
SP - 584
EP - 591
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 1
ER -