Signature of the interaction between dark energy and dark matter in galaxy clusters
Signature of the interaction between dark energy and dark matter in galaxy clusters
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星系团中暗能量和暗物质相互作用的特征
DOI：
10.1016/j.physletb.2009.02.008
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发表时间：
2009-03-16
影响因子：
4.4
通讯作者：
Wang, Bin
中科院分区：
文献类型：
--
作者：
Abdalla, Elcio;Abramo, L. Raul;Wang, Bin
我们研究了暗能量和暗物质之间的相互作用对星系团动力学的影响。我们得到文件一般Layser-Irvine方程中存在的相互作用，并找到如何，在这种情况下。维里定理成立了利用来自33个松弛星系团的光学、X射线和弱透镜数据，我们对暗区之间的耦合强度进行了限制。现有的数据表明，这种耦合是小的，但积极的，表明暗能量可能会衰减到暗物质。然而，在确定这种耦合的大小和意义之前，应该更好地了解几种质量估计之间的系统效应。(C)2009年由Elsevier B. V.出版
We investigate the influence of ail interaction between dark energy and dark matter upon the dynamics of galaxy clusters. We obtain file general Layser-Irvine equation in the presence of interactions, and find how, in that case. the virial theorem stands corrected. Using optical, X-ray and weak lensing data from 33 relaxed galaxy clusters, we put constraints on the strength of the coupling between the dark sectors. Available data Suggests that this coupling is small but positive, indicating that dark energy might be decaying into dark matter. Systematic effects between the several mass estimates, however, should be better known, before definitive conclusions oil the magnitude and significance of this coupling could be established. (C) 2009 Published by Elsevier B.V.