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arXiv 1102.0619gr-qc
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标量-张量引力场中引力波磁分量的精确响应函数

A precise response function for the magnetic component of Gravitational Waves in Scalar-Tensor Gravity

Christian Corda

摘要:

引力波的磁分量是一个重要的问题,在许多文献中都有讨论。从这样的分析,其结果是,这样的磁分量在用于GW的基于地面的干涉仪的频率范围的高频部分中变得特别重要,该频率范围由标准的广义相对论(GTR)产生。最近,这样的磁分量已被扩展到由标量张量引力(STG)产生的GWs。在回顾了STG中关于GWs的一些重要问题之后,本文从不同的角度重新分析了STG框架中的磁分量,通过纠正以前论文中的错误并通过释放更精确的响应函数。通过这种方式,我们还表明,如果忽略磁贡献,只考虑电贡献的低频近似,信号的一个重要部分可能会丢失。确定一个更精确的响应函数的磁贡献也是重要的框架内的可能性,以区分其他引力理论从GTR。在最后的文件的主要结果的扩展也示出,以回忆的存在下,磁分量的GRT太。

英文摘要:

The important issue of the magnetic component of gravitational waves (GWs) has been considered in various papers in the literature. From such analyses, it resulted that such a magnetic component becomes particularly important in the high frequency portion of the frequency range of ground based interferometers for GWs which arises from standard General Theory of Relativity (GTR). Recently, such a magnetic component has been extended to GWs arising from Scalar-Tensor Gravity (STG) too. After a review of some important issues on GWs in STG, in this paper we re-analyse the magnetic component in the framework of STG from a different point of view, by correcting an error in a previous paper and by releasing a more precise response function. In this way, we also show that if one neglects the magnetic contribution considering only the low-frequency approximation of the electric contribution, an important part of the signal could be, in principle, lost. The determination of a more precise response function for the magnetic contribution is important also in the framework of the possibility to distinguish other gravitational theories from GTR. At the end of the paper an expansion of the main results is also shown in order to recall the presence of the magnetic component in GRT too.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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