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arXiv 1503.03695gr-qc
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Bondi-Sachs能量动量和引力辐射能量

Bondi-Sachs energy-momentum and the energy of gravitational radiation

J. W. Maluf, J. F. da Rocha Neto, S. C. Ulhoa

摘要:

我们在远程平行等价的广义相对论(TEGR)框架下构造了Bondi-Sachs时空的引力能动量。邦迪-萨克斯线元描述时空渐近区域的引力辐射,由质量和两个函数$c$和$d$决定,这两个函数产生新函数,新函数被解释为引力场的辐射自由度。Bondi-Sachs能量-动量的标准表达式仅根据质量方面构造。我们在TEGR的上下文中得到的表达式由标准表达式给出,它表示源的引力能,加上由两个函数$c$和$d$确定的新项。我们把这个新术语解释为引力辐射的能量。

英文摘要:

We construct the gravitational energy-momentum of the Bondi-Sachs space-time, in the famework of the teleparallel equivalent of general relativity (TEGR). The Bondi-Sachs line element describes gravitational radiation in the asymptotic region of the space-time, and is determined by the mass aspect and by two functions, $c$ and $d$, that yield the news functions, which are interpreted as the radiating degrees of freedom of the gravitational field. The standard expression for the Bondi-Sachs energy-momentum is constructed in terms of the mass aspect only. The expression that we obtain in the context of the TEGR is given by the standard expression, which represents the gravitational energy of the source, plus a new term that is determined by the two functions $c$ and $d$. We interpret this new term as the energy of gravitational radiation.

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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