Prospect for Cosmological Parameter Estimation Using Future Hubble Parameter Measurements

作     者：Jia-Jia Geng Rui-Yun Guo An-Zhong Wang Jing-Fei Zhang Xin Zhang 耿佳佳;郭瑞芸;王安忠;张敬飞;张鑫

作者机构：Institute for Advanced Physics & Mathematics Zhejiang University of Technology Hangzhou 310032 China Department of Physics College of Sciences Northeastern University Shenyang 110004 China GCAP-CASPER Department of Physics Baylor University Waco TX 76798-7316 USA Center for High Energy Physics Peking University Beijing 100080 China Center for Gravitation and Cosmology Yangzhou University Yangzhou 225009 China 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2018年第70卷第10期

页      面：445-450页

核心收录：

学科分类：07[理学] 070401[理学-天体物理] 0704[理学-天文学] 

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos.11522540,11690021,11375153,11675145 the National Program for Support of Top-Notch Young Professionals the 2016 Program for Postdoctoral Fellowship of Zhejiang Province 

主　　题：dark energy cosmological parameter constraints Hubble parameter measurements 

摘      要：We constrain cosmological parameters using only Hubble parameter data and quantify the impact of future Hubble parameter measurements on parameter estimation for the most typical dark energy models. We first constrain cosmological parameters using 52 current Hubble parameter data including the Hubble constant measurement from the Hubble Space Telescope. Then we simulate the baryon acoustic oscillation signals from WFIRST(Wide-Field Infrared Survey Telescope) covering the redshift range of z ∈ [0.5, 2] and the redshift drift data from E-ELT(European Extremely Large Telescope) in the redshift range of z ∈ [2, 5]. It is shown that solely using the current Hubble parameter data could give fairly good constraints on cosmological parameters. Compared to the current Hubble parameter data, with the WFIRST observation the H(z) constraints on dark energy would be improved slightly, while with the E-ELT observation the H(z) constraints on dark energy is enormously improved.