Spacetime, spin and Gravity Probe B

被引：9
|
作者：
Overduin, J. M.
机构：
[1] Towson Univ, Dept Phys Astron & Geosci, Towson, MD 21252 USA
[2] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA
来源：
CLASSICAL AND QUANTUM GRAVITY | 2015年 / 32卷 / 22期
关键词：
gravitational tests; alternative theories of gravity; gravitoelectro-magnetism; geodetic precession; frame-dragging; GENERAL-RELATIVITY; ROTATIONAL PERTURBATIONS; ACCRETION DISKS; SIMULATIONS; MOTION; PRECESSION; MODELS; TESTS; TIME;
D O I：
10.1088/0264-9381/32/22/224003
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
It is more important than ever to push experimental tests of gravitational theory to the limits of existing technology in both range and sensitivity. This brief review focuses on spin-based tests of general relativity and their implications for alternative, mostly non-metric theories of gravity motivated by the challenge of unification with the standard model of particle physics. The successful detection of geodetic precession and frame-dragging by Gravity Probe B places new constraints on a number of these theories, and increases our confidence in the theoretical mechanisms underpinning current ideas in astrophysics and cosmology.
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页数：11
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