Strong gravitational lensing constraints on holographic dark energy

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...

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Bibliographic Details
Published inScience China. Physics, mechanics & astronomy Vol. 58; no. 11; pp. 68 - 74
Main Authors Cui, JingLei, Xu, YueYao, Zhang, JingFei, Zhang, Xin
Format Journal Article
LanguageEnglish
Published Beijing Science China Press 01.11.2015
Springer Nature B.V
Subjects
Astronomy
Classical and Continuum Physics
Constraint modelling
Dark energy
Galaxies
Gravitational lenses
Holography
Observations and Techniques
Parameters
Physics
Physics and Astronomy
力学
天文学
物理学
科学学
科学知识
cosmological constraints
strong gravitational lensing
holographic dark energy
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Summary: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.
Bibliography: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.
cosmological constraints, strong gravitational lensing, holographic dark energy
11-5849/N
ISSN:1674-7348
1869-1927
DOI:10.1007/s11433-015-5734-z