Effects of spacetime anisotropy on the galaxy rotation curves

	Effects of spacetime anisotropy on the galaxy rotation curves
	Chang Z(常哲); Li MH(李明华); Li X(李昕); Lin HN(林海南); 王赛;Chang, Z; Li, MH; Li, X; Lin, HN; Wang, S
刊名	EUROPEAN PHYSICAL JOURNAL C
	2013
卷号	73 期号:5 页码:2447
英文摘要	The observations on galaxy rotation curves show significant discrepancies from the Newtonian theory. This issue could be explained by the effect of the anisotropy of the spacetime. Conversely, the spacetime anisotropy could also be constrained by the galaxy rotation curves. Finsler geometry is a kind of intrinsically anisotropic geometry. In this paper, we study the effect of the spacetime anisotropy at galactic scales in the Finsler spacetime. It is found that the Finslerian model has close relations with the Milgrom's MOND. By performing the best-fit procedure to the galaxy rotation curves, we find that the anisotropic effects of the spacetime become significant when the Newtonian acceleration GM/r(2) is smaller than the critical acceleration a(0). Interestingly, the critical acceleration a0, although varies between different galaxies, is in the order of magnitude cH(0)/2 pi similar to 10(-10) ms(-2).
学科主题	Physics
收录类别	SCI
WOS记录号	WOS:000319518900028
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/224460]
专题	高能物理研究所_理论物理室
推荐引用方式 GB/T 7714	Chang Z,Li MH,Li X,et al. Effects of spacetime anisotropy on the galaxy rotation curves[J]. EUROPEAN PHYSICAL JOURNAL C,2013,73(5):2447.
APA	常哲.,李明华.,李昕.,林海南.,王赛；Chang, Z.,...&Wang, S.(2013).Effects of spacetime anisotropy on the galaxy rotation curves.EUROPEAN PHYSICAL JOURNAL C,73(5),2447.
MLA	常哲,et al."Effects of spacetime anisotropy on the galaxy rotation curves".EUROPEAN PHYSICAL JOURNAL C 73.5(2013):2447.