来自星系团对精细结构常数空间变化的新约束
宇宙学与河外天体物理
2016-12-22 v1
摘要
我们利用 618 个 X 射线选星系团的热 Sunyaev-Zeldovich 效应多频测量，对精细结构常数的空间变化进行了约束。尽管我们的结果尚不能与类星体吸收线所得结果相竞争，但相较于此前来自宇宙微波背景功率谱和星系团的结果，我们分别将精度提高了约 10 倍和约 2.5 倍。
引用
@article{arxiv.1612.06739,
title = {New Constraints on Spatial Variations of the Fine Structure Constant from Clusters of Galaxies},
author = {I. de Martino and C. J. A. P. Martins and H. Ebeling and D. Kocevski},
journal= {arXiv preprint arXiv:1612.06739},
year = {2016}
}
备注
10 pages, 1 figures, based on arXiv:1605.03053 and on the oral presentation at VARCOSMOFUN16, accepted for publication in "Universe", Special Issue "Varying Constants and Fundamental Cosmology" for the VARCOSMOFUN16 in Szczecin, Poland, 12-17 September, 2016