Spiral galaxies rotation curves with a logarithmic corrected newtonian gravitational potential

被引:22
|
作者
Fabris, J. C. [1 ]
Campos, J. Pereira [1 ]
机构
[1] Univ Fed Espirito Santo, Dept Fis, BR-29060900 Espirito Santo, Brazil
关键词
Dark matter; Rotation curves; Gravitation; GENERALIZED CHAPLYGIN-GAS; DARK-MATTER; GRAVITY; CONSTRAINTS; DYNAMICS; STRINGS; FLUID; MASS;
D O I
10.1007/s10714-008-0654-0
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We analyze the rotation curves of 10 spiral galaxies with a newtonian potential corrected with an extra logarithmic term. The logarithmic correction can have its origin from fundamental frameworks, like string theories or effective models of gravity due to quantum effects. There is also a connection with some toy models resulting from TeVeS. We represent the spiral galaxies as a thin disk. There is a new constant associated with the extra term in the potential. The rotation curve of the chosen sample of spiral galaxies is well reproduced for a narrow range of the new constant. The compatibility of this correction with local physics is discussed.
引用
收藏
页码:93 / 104
页数:12
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