I-Love-Q: Unexpected Universal Relations for Neutron Stars and Quark Stars

被引：359

作者：

Yagi, Kent ^{[1
]}

Yunes, Nicolas ^{[1
]}

机构：

[1] Montana State Univ, Dept Phys, Bozeman, MT 59717 USA

来源：

SCIENCE | 2013年 / 341卷 / 6144期

关键词：

EQUATION-OF-STATE; MULTIPOLE MOMENTS; DENSE MATTER; SPACE;

D O I：

10.1126/science.1236462

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Neutron stars and quark stars are not only characterized by their mass and radius but also by how fast they spin, through their moment of inertia, and how much they can be deformed, through their Love number and quadrupole moment. These depend sensitively on the star's internal structure and thus on unknown nuclear physics. We find universal relations between the moment of inertia, the Love number, and the quadrupole moment that are independent of the neutron and quark star's internal structure. These can be used to learn about neutron star deformability through observations of the moment of inertia, break degeneracies in gravitational wave detection to measure spin in binary inspirals, distinguish neutron stars from quark stars, and test general relativity in a nuclear structure-independent fashion.

引用

页码：365 / 368

页数：4

共 29 条

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