期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 386, 期 4, 页码 2015-2021出版社
OXFORD UNIV PRESS
DOI: 10.1111/j.1365-2966.2008.13127.x
关键词
hydrodynamics; methods : numerical; cosmology : theory
资金
- STFC [ST/F002858/1, ST/F00298X/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/F00298X/1, ST/F002858/1] Funding Source: researchfish
The physical processes that define the spine of the galaxy cluster X-ray luminosity-temperature (L-T) relation are investigated using a large hydrodynamical simulation of the universe. This simulation models the same volume and phases as the millennium simulation and has a linear extent of 500 h(-1) Mpc. We demonstrate that mergers typically boost a cluster along but also slightly below the L-T relation. Due to this boost, we expect that all of the very brightest clusters will be near the peak of a merger. Objects from near the top of the L-T relation tend to have assembled much of their mass earlier than an average halo of similar final mass. Conversely, objects from the bottom of the relation are often experiencing an ongoing or recent merger.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据