典型文献
Testing the Coincidence Problem with Strong Gravitational Lens,Type Ⅰa Supernovae and Hubble Parameter Observational Data
文献摘要：
In this paper,we use three different kinds of observational data,including 130 strong gravitational lensing(SGL)systems,type Ⅰa supernovae(SNeIa:Pantheon and Union2.1)and 31 Hubble parameter data points(H(z))from cosmic chronometers to constrain the phenomenological model(ρx∝ρmaζ).By combining these three kinds of data(Union2.1+SGL+H(z)),we get the parameter value at the confidence interval of 2σ,Ωx,o=0.69±0.34,ωx=-1.24±0.61,ζ=3.8±3.9 and Ho=70.22±0.86 kms-1 Mpc-1.According to our results,we find that the ACDM model is still the model which is in best agreement with the observational data at present,and the coincidence problem is not alleviated.In addition,the Ωx and Ωm have the same order of magnitude in 0＜z＜1.26.Finally,we obtain the transition redshift ZT=0.645.If the transition occurs in z＞0.645,it is necessary to introduce the dark energy interacting with dark matter.
文献关键词：
中图分类号：
作者姓名：
Jingwang Diao;Yu Pan;Wenxiao Xu
作者机构：
School of Science,Chongqing University of Posts and Telecommunications,Chongqing 400065,China
文献出处：
引用格式：
[1]Jingwang Diao;Yu Pan;Wenxiao Xu-.Testing the Coincidence Problem with Strong Gravitational Lens,Type Ⅰa Supernovae and Hubble Parameter Observational Data)[J].天文和天体物理学研究,2022(11):216-224
A类：
Coincidence,Supernovae,SGL,supernovae,SNeIa,Pantheon,Union2,chronometers,1+SGL+H,kms,Mpc,ACDM
B类：
Testing,Problem,Strong,Gravitational,Lens,Type,Hubble,Parameter,Observational,Data,In,this,paper,we,use,three,different,kinds,observational,data,including,strong,gravitational,lensing,systems,type,parameter,points,from,cosmic,constrain,phenomenological,model,By,combining,these,get,value,confidence,interval,Ho,According,our,results,find,that,still,which,best,agreement,present,coincidence,problem,not,alleviated,addition,have,same,order,magnitude,Finally,obtain,transition,redshift,ZT,If,occurs,necessary,introduce,dark,energy,interacting,matter
AB值：
0.546279
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