Effects of spacetime anisotropy on the galaxy rotation curves
Effects of spacetime anisotropy on the galaxy rotation curves
复制标题
时空各向异性对星系旋转曲线的影响
DOI:
10.1140/epjc/s10052-013-2447-1
复制
发表时间:
2013-05
影响因子:
4.4
通讯作者:
Wang, Sai
中科院分区:
文献类型:
--
作者:
Chang, Zhe;Li, Ming-Hua;Li, Xin;Lin, Hai-Nan;Wang, Sai
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 accelerationGM/r2is smaller than the critical accelerationa0. Interestingly, the critical accelerationa0, although varies between different galaxies, is in the order of magnitude.
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DOI:
10.1086/161131
发表时间:
1983-07
期刊:
The Astrophysical Journal
影响因子:
--
作者:
M. Milgrom
通讯作者:
M. Milgrom
DOI:
10.1086/158003
发表时间:
1980-06
期刊:
The Astrophysical Journal
影响因子:
--
作者:
V. Rubin;W. Ford;N. Thonnard
通讯作者:
V. Rubin;W. Ford;N. Thonnard
影响因子:
8.6
作者:
K. Land;J. Magueijo
通讯作者:
K. Land;J. Magueijo
DOI:
10.1088/0004-6256/136/6/2720
发表时间:
2008-10
期刊:
The Astronomical Journal
影响因子:
--
作者:
C. Trachternach;W. D. Blok;F. Walter;E. Brinks;R. Kennicutt
通讯作者:
C. Trachternach;W. D. Blok;F. Walter;E. Brinks;R. Kennicutt
影响因子:
4.4
作者:
Chang, Zhe;Wang, Sai
通讯作者:
Wang, Sai