Running vacuum model in a non-flat universe

被引:0
|
作者
耿朝强 [1 ,2 ,3 ,4 ]
徐彦婷 [3 ]
尹璐 [1 ,2 ,3 ]
张开拓 [5 ,6 ]
机构
[1] School of Fundamental Physics and Mathematical Sciences Hangzhou Institute for Advanced Study UCAS
[2] International Centre for Theoretical Physics Asia-Pacific
[3] Department of Physics National Tsing Hua University
[4] Department of Physics Anhui Normal University
[5] Collaborative Innovation Center of Light Manipulations and Applications Shandong Normal University
基金
中国国家自然科学基金;
关键词
D O I
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中图分类号
P159 [宇宙学];
学科分类号
070401 ;
摘要
We investigate observational constraints on the running vacuum model (RVM) ofΛ=3ν(H;+K/a;)+c;in a spatially curved universe,whereνis the model parameter,K corresponds to the spatial curvature constant,a represents the scalar factor,and c;is a constant defined by the boundary conditions.We study the CMB power spectra with several sets ofνand K in the RVM.By fitting the cosmological data,we find that the best fittedχ;value for RVM is slightly smaller than that ofΛCDM in the non-flat universe,along with the constraints of■.In particular,our results favor the open universe in bothΛCDM and RVM.In addition,we show that the cosmological constraints of ■at 95%C.L.for the neutrino mass sum are relaxed in both models in the spatially curved universe.
引用
收藏
页码:182 / 188
页数:7
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