Finslerian MOND versus observations of Bullet Cluster 1E 0657-558

	Finslerian MOND versus observations of Bullet Cluster 1E 0657-558
	Li X(李昕); Li MH(李明华); Lin HN(林海南); 常哲;Li, X; Li, MH; Lin, HN; Chang, Z
刊名	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2013
卷号	428 期号:4 页码:2939-2948
关键词	gravitational lensing: weak galaxies: clusters: individual: Bullet Cluster 1E0657-558 galaxies: kinematics and dynamics galaxies: clusters: intracluster medium dark matter
英文摘要	It is known that theory of MOND (Modification of Newtonian Dynamics) with spherical symmetry cannot account for the convergence kappa-map of Bullet Cluster 1E 0657-558. In this paper, we try to set up a Finslerian MOND, a generalization of MOND in Finsler space-time. We use Ric = 0 to obtain the gravitational vacuum field equation in a 4D Finsler space-time. To leading order in the post-Newtonian approximation, we obtain the explicit form of the Finslerian line element. It is simply the Schwarzschild's metric except for the Finslerian rescaling coefficient f(v) of the radial coordinate r, i.e. R = f(v) r. By setting f (v) = root 1 - (GMa(0)/v(4)), we obtain the famous MOND in a Finslerian framework. Taking a dipole and a quadrupole term into consideration, we give the convergence kappa in gravitational lensing astrophysics in our model. Numerical analysis shows that our prediction is to a certain extent in agreement with the observations of Bullet Cluster 1E 0657-558. With the theoretical temperature T taking the observed value 14.8 keV, the mass density profile of the main cluster obtained in our model is of the same order as that given by the best-fitting King beta-model.
学科主题	Astronomy & Astrophysics
收录类别	SCI
WOS记录号	WOS:000318232000012
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/224218]
专题	高能物理研究所_理论物理室
推荐引用方式 GB/T 7714	Li X,Li MH,Lin HN,et al. Finslerian MOND versus observations of Bullet Cluster 1E 0657-558[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2013,428(4):2939-2948.
APA	李昕.,李明华.,林海南.,常哲；Li, X.,Li, MH.,...&Chang, Z.(2013).Finslerian MOND versus observations of Bullet Cluster 1E 0657-558.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,428(4),2939-2948.
MLA	李昕,et al."Finslerian MOND versus observations of Bullet Cluster 1E 0657-558".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 428.4(2013):2939-2948.