Dark energy and matter interacting scenario to relieve H_(0) and S_(8) tensions  

作　　者：高立场 薛社生 张鑫 Li-Yang Gao;She-Sheng Xue;Xin Zhang(Key Laboratory of Cosmology and Astrophysics(Liaoning Province)&Department of Physics,College of Sciences,Northeastern University,Shenyang 110819,China;Kapteyn Astronomical Institute,University of Groningen,P.O.Box 800,9700 AV Groningen,the Netherlands;ICRANet,Piazzale della Repubblica,10-65122,Pescara,Italy;ICTP-AP,University of Chinese Academy of Sciences,Beijing 100049,China;Physics Department,Sapienza University of Rome,P.le A.Moro 5,00185,Rome,Italy;INFN,Sezione di Perugia,Via A.Pascoli,I-06123,Perugia,Italy;Key Laboratory of Data Analytics and Optimization for Smart Industry(Ministry of Education),Northeastern University,Shenyang 110819,China;National Frontiers Science Center for Industrial Intelligence and Systems Optimization,Northeastern University,Shenyang 110819,China)

机构地区：[1]Key Laboratory of Cosmology and Astrophysics(Liaoning Province)&Department of Physics,College of Sciences,Northeastern University,Shenyang 110819,China [2]Kapteyn Astronomical Institute,University of Groningen,P.O.Box 800,9700 AV Groningen,the Netherlands [3]ICRANet,Piazzale della Repubblica,10-65122,Pescara,Italy [4]ICTP-AP,University of Chinese Academy of Sciences,Beijing 100049,China [5]Physics Department,Sapienza University of Rome,P.le A.Moro 5,00185,Rome,Italy [6]INFN,Sezione di Perugia,Via A.Pascoli,I-06123,Perugia,Italy [7]Key Laboratory of Data Analytics and Optimization for Smart Industry(Ministry of Education),Northeastern University,Shenyang 110819,China [8]National Frontiers Science Center for Industrial Intelligence and Systems Optimization,Northeastern University,Shenyang 110819,China

出　　处：《Chinese Physics C》2024年第5期1-7,共7页中国物理C（英文版）

基　　金：Supported by the National SKA Program of China(2022SKA0110200,2022SKA0110203);the National Natural Science Foundation of China(11975072,11875102,11835009)。

摘　　要：We consider a new cosmological model(calledΛCDM),in which the vacuum energy interacts with matter and radiation,and test this model using the current cosmological observations.Using the CMB+BAO+SN(CBS)dataset to constrain the model,we find that H_(0) and S_(8) tensions are relieved to 2.87σand 2.77σ,respectively.However,in this case,theΛCDM model is not favored by the data,compared withΛCDM.We find that when the H_(0) and S_(8) data are added to the data combination,the situation is significantly improved.In the CBS+H_(0) case,the model relieves the H_(0) tension to 0.47σ,and the model is favored overΛCDM.In the CBS+H_(0)+S_(8) case,we obtain a synthetically best situation,in which the H_(0) and S_(8) tensions are relieved to 0.72σand 2.11σ,respectively.In this case,the model is most favored by the data.Therefore,this cosmological model can greatly relieve the H_(0) tension and simultaneously effectively alleviate the S_(8) tension.

关 键 词：dark energy interacting dark energy model the Hubble constant Hubble tension cosmological constraint 

分 类 号：P15[天文地球—天文学]