摘要
Strong gravitational lensing(SGL) has provided an important tool for probing galaxies and cosmology. In this paper, we use the SGL data to constrain the holographic dark energy model, as well as models that have the same parameter number, such as the w CDM and Ricci dark energy models. We find that only using SGL is difficult to effectively constrain the model parameters.However, when the SGL data are combined with CBS(CMB+BAO+SN) data, the reasonable estimations can be given and the constraint precision is improved to a certain extent, relative to the case of CBS only. Therefore, SGL is an useful way to tighten constraints on model parameters.
Strong gravitational lensing （SGL） has provided an important tool for probing galaxies and cosmology. In this paper, we use the SGL data to constrain the holographic dark energy model, as well as models that have the same parameter number, such as the wCDM and Ricci dark energy models. We find that only using SGL is difficult to effectively constrain the model parameters. However, when the SGL data are combined with CBS （CMB＋BAO＋SN） data, the reasonable estimations can be given and the constraint precision is improved to a certain extent, relative to the case of CBS only. Therefore, SGL is an useful way to tighten constraints on model parameters.
基金
supported by the National Natural Science Foundation of China(Grants Nos.11175042 and 11522540)
the Provincial Department of Education of Liaoning(Grant No.L2012087)
the Fundamental Research Funds for the Central Universities(Grants Nos.N140505002,N140506002,and N140504007)
关键词
科学学
科学知识
物理学
力学
天文学
cosmological constraints, strong gravitational lensing, holographic dark energy
