Gravitational waves

被引：0

作者：

Kokkotas, Kostas D. ^{[1
,2
]}

机构：

[1] Univ Tubingen, D-72076 Tubingen, Germany

[2] Aristotle Univ Thessaloniki, Dept Phys, Thessaloniki 54124, Greece

来源：

ACTA PHYSICA POLONICA B | 2007年 / 38卷 / 12期

关键词：

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Gravitational waves are propagating fluctuations of gravitational fields, that is, "ripples" in space-time, generated mainly by moving massive bodies. These distortions of space-time travel with the speed of light. Every body in the path of such a wave feels a tidal gravitational force that acts perpendicular to the wave's direction of propagation; these forces change the distance between points, and the size of the changes is proportional to the distance between these points thus gravitational waves can be detected by devices which measure the induced length changes. The frequencies and the amplitudes of the waves are related to the motion of the masses involved. Thus, the analysis of gravitational waveforms allows us to learn about their source and, if there are more than two detectors involved in observation, to estimate the distance and position of their source on the sky.

引用

页码：3891 / 3923

页数：33

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