AMiBA: scaling relations between the integrated Compton-y and X-ray derived temperature, mass, and luminosity
Abstract
We investigate the scaling relations between the X-ray and the thermal Sunyaev-Zel'dovich Effect (SZE) properties of clusters of galaxies, using data taken during 2007 by the Y.T. Lee Array for Microwave Background Anisotropy (AMiBA) at 94 GHz for the six clusters A1689, A1995, A2142, A2163, A2261, and A2390. The scaling relations relate the integrated Compton-y parameter Y_{2500} to the X-ray derived gas temperature T_{e}, total mass M_{2500}, and bolometric luminosity L_X within r_{2500}. Our results for the power-law index and normalization are both consistent with the self-similar model and other studies in the literature except for the Y_{2500}-L_X relation, for which a physical explanation is given though further investigation may be still needed. Our results not only provide confidence for the AMiBA project but also support our understanding of galaxy clusters.
Keywords
Cite
@article{arxiv.0911.3232,
title = {AMiBA: scaling relations between the integrated Compton-y and X-ray derived temperature, mass, and luminosity},
author = {Chih-Wei Locutus Huang and Jiun-Huei Proty Wu and Paul T. P. Ho and Patrick M. 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 Pablo Altamirano and Mark Birkinshaw and Chia-Hao Chang and Shu-Hao Chang and Su-Wei Chang and Ming-Tang Chen and Tzihong Chiueh and Chih-Chiang Han and Yau-De Huang and Yuh-Jing Hwang and Homin Jiang and Michael Kesteven and Derek Kubo and Chao-Te Li and Pierre Martin-Cocher and Peter Oshiro and Philippe Raffin and Tashun Wei and Warwick Wilson},
journal= {arXiv preprint arXiv:0911.3232},
year = {2014}
}
Comments
Accepted by ApJ; 8 pages, 3 figures, 5 tables