Gravitational Deflection of Light in Rindler-Type Potential as a Possible Resolution to the Observations of Bullet Cluster 1E0657-558

The surface density Σ-map and the convergence κ-map of Bullet Cluster 1E0657-558 show that the center of baryonic matters separates from the center of gravitational force,and the distribution of gravitational force do not possess spherical symmetry.This hints that a modified gravity with difference...

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Bibliographic Details
Published in:Communications in theoretical physics 2012-04, Vol.57 (4), p.611-618
Main Author: 李昕 常哲
Format: Article
Language:English
Subjects:
Bullets
Clusters
Convergence
Deflection
Density
Projectiles
Stress concentration
Symmetry
偏转
子弹
平方反比定律
引力
芬斯勒时空
表面密度
观测
集群
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Summary:The surface density Σ-map and the convergence κ-map of Bullet Cluster 1E0657-558 show that the center of baryonic matters separates from the center of gravitational force,and the distribution of gravitational force do not possess spherical symmetry.This hints that a modified gravity with difference to Newtonian inverse-square law at large scale,and less symmetry is worth investigating.In this paper,we study the dynamics in Randers-Finsler spacetime.The Newtonian limit and gravitational deflection of light in a Rindler-type potential is focused in particular.It is shown that the convergence in Finsler spacetime could account for the observations of Bullet Cluster.
ISSN:0253-6102
DOI:10.1088/0253-6102/57/4/16