Models of vacuum energy interacting with cold dark matter:Constraints and comparison

作     者：Hai-Li Li Lu Feng Jing-Fei Zhang Xin Zhang 

作者机构：Department of PhysicsCollege of SciencesNortheastern UniversityShenyang 110819China College of Physical Science and TechnologyShenyang Normal UniversityShenyang 110034China Ministry of Education Key Laboratory of Data Analytics and Optimization for Smart IndustryNortheastern UniversityShenyang 110819China Center for High Energy PhysicsPeking UniversityBeijing 100080China 

出 版 物：《Science China(Physics,Mechanics & Astronomy)》 (中国科学：物理学、力学、天文学（英文版）)

年 卷 期：2019年第62卷第12期

页      面：19-27页

核心收录：

学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.11875102,11835009,11522540,and 11690021) the National Program for Support of Top-Notch Young Professionals,and Doctoral Research Project of Shenyang Normal University(Grant Nos.BS201844,and BS201702) 

主　　题：interacting dark energy interacting vacuum energy models cosmological observations cosmological constraints modelcomparison 

摘      要：In this paper, we investigate the observational constraints on the scenario of vacuum energy interacting with cold dark *** consider eight typical interaction forms in such an interacting vacuum energy scenario. The observational data used in this work to constrain these models include the JLA sample of type Ia supernovae observation, the Planck 2015 distance priors data of cosmic microwave background anisotropies observation, the baryon acoustic oscillations data, and the Hubble constant direct measurement. We find that the current observational data almost equally favor these interacting vacuum energy models. We also find that for all these models of vacuum energy interacting with cold dark matter the case of no interaction is actually well consistent with the current observational data within 1σ range.