Torsional oscillations in tensor-vector-scalar theory

被引:5
|
作者
Sotani, Hajime [1 ]
机构
[1] Natl Inst Nat Sci, Natl Astron Observ Japan, Div Theoret Astron, Mitaka, Tokyo 1818588, Japan
来源
PHYSICAL REVIEW D | 2011年 / 83卷 / 12期
关键词
GRAVITATIONAL-WAVES; STARS;
D O I
10.1103/PhysRevD.83.124030
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
With the Cowling approximation, the torsional oscillations on relativistic stars in tensor-vector-scalar (TeVeS) theory are examined. The spectrum features in TeVeS are very similar to those in general relativity (GR), but the torsional frequencies in TeVeS become larger than those expected in GR. We find that, compared with the fluid oscillations with polar parity, the torsional frequencies depend strongly on the gravitational theory. Since the dependencies of fundamental frequencies on the gravitational theory and on the equation of state are different from those of overtone, it could be possible to distinguish TeVeS from GR in the strong-field regime via observations of this type of oscillations with the help of the observation of stellar mass.
引用
收藏
页数:6
相关论文
共 50 条