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arXiv 1003.0496astro-ph.CO
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AMiBA:Sunyaev-Zel'dovich效应导出的大质量星系团的性质和标度关系

AMiBA: Sunyaev-Zel'dovich effect derived properties and scaling relations of massive galaxy clusters

Yu-Wei Liao, Jiun-Huei Proty Wu, Paul T. P. Ho, Chih-Wei Locutus Huang, Patrick M. Koch, Kai-Yang Lin, Guo-Chin Liu, Sandor M. Molnar, Hiroaki Nishioka, Keiichi… 展开作者

Yu-Wei Liao, Jiun-Huei Proty Wu, Paul T. P. Ho, Chih-Wei Locutus Huang, Patrick M. Koch, Kai-Yang Lin, Guo-Chin Liu, Sandor M. Molnar, Hiroaki Nishioka, Keiichi Umetsu, Fu-Cheng Wang, Pablo Altamirano, Mark Birkinshaw, Chia-Hao Chang, Shu-Hao Chang, Su-Wei Chang, Ming-Tang Chen, Tzihong Chiueh, Chih-Chiang Han, Yau-De Huang, Yuh-Jing Hwang, Homin Jiang, Michael Kesteven, Derek Kubo, Chao-Te Li, Pierre Martin-Cocher, Peter Oshiro, Philippe Raffin, Tashun Wei, Warwick Wilson

摘要:

在86-102 GHz波段观测到6个大质量星系团的Sunyaev-Zel'dovich效应(SZE),红移为0.091 \leq z \leq 0.322。T. Lee Array for Microwave Background Anisotropy(AMiBA)微波背景各向异性天线阵本文改进了一种基于等温β模型的迭代方法,从AMiBA SZE数据中导出了电子温度T_e、总质量M_t、气体质量M_g和r_2500内的积分康普顿Y。本文还考虑了非等温通用温度剖面(UTP)β模型。这些结果与其它观测结果符合得很好。我们还研究了由于我们所采用的方法中所作的假设,这些纯SZ推导的T_e,M_t,M_g和Y之间的嵌入标度关系。我们的研究结果表明,集群属性可能是可测量的SZE观测。然而,建立在纯SZE方法的假设偏差的标度关系估计的结果,需要进一步研究。

英文摘要:

The Sunyaev-Zel'dovich Effect (SZE) has been observed toward six massive galaxy clusters, at redshifts 0.091 \leq z \leq 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) βmodels 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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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