Scalar fields properties for flat galactic rotation curves

被引：24
|
作者：
Fay, S [1 ]
机构：
[1] Observ Paris, CNRS, FRE 2462, Lab Univers & Theories, F-92195 Meudon, France
来源：
ASTRONOMY & ASTROPHYSICS | 2004年 / 413卷 / 03期
关键词：
galaxies : kinematics and dynamics; cosmology : dark matter; cosmology : theory;
D O I：
10.1051/0004-6361:20031540
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The whole class of minimally coupled and massive scalar fields which may be responsible for flattening of galactic rotation curves is found. An interesting relation with a class of scalar-tensor theories able to isotropise anisotropic models of Universe is shown. The resulting metric is found and its stability and scalar field properties are tested with respect to the presence of a second scalar field or a small perturbation of the rotation velocity at galactic outer radii.
引用
收藏
页码：799 / 805
页数：7
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