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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Published inCommunications in theoretical physics Vol. 57; no. 4; pp. 611 - 618
Main Author 李昕 常哲
Format Journal Article
LanguageEnglish
Published 01.04.2012
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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ISSN0253-6102
DOI10.1088/0253-6102/57/4/16

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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.
Bibliography:11-2592/O3
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.
modified gravity,Finsler spacetime,Bullet Cluster
LI Xin CHANG Zhe （Institute of High Energy Physics, Theoretical Physics Center for Science Facilities, Chinese Academy of Sciences, Beijing 100049, China）
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ISSN:0253-6102
DOI:10.1088/0253-6102/57/4/16