Constrains on f（T） gravity with the strong gravitational lensing data

Strong lensing is an effective way to probing the properties of dark energy. In this paper, we use the strong lensing data to constrain the f（T） theory, which is a new modified gravity to explain the present accelerating cosmic expansion without the need of dark energy. In our discussion, the CMB an...

Full description

Saved in:
Bibliographic Details
Published in:中国科学：物理学、力学、天文学英文版 2014 (5), p.988-993
Main Author: WU Juan LI ZhengXiang WU PuXun YU HongWei
Format: Article
Language:English
Subjects:
SNIA
一致性
宇宙膨胀
引力透镜
数据添加
暗能量
模型参数
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Strong lensing is an effective way to probing the properties of dark energy. In this paper, we use the strong lensing data to constrain the f（T） theory, which is a new modified gravity to explain the present accelerating cosmic expansion without the need of dark energy. In our discussion, the CMB and BAO data are also added to constrain model parameters tightly and three different f（T） models are studied. We find that strong lensing has an important role on constraining f（T） models, and once the CMB＋BAO data is added, a tighter constraint is obtained. However, the consistency of our result with what is obtained from SNIa＋CMB＋BAO is actually model-dependent.
ISSN:1674-7348
1869-1927