线性膨胀宇宙中的指数宇宙学红移
Exponential cosmological redshift in a linearly expanding universe
摘要：
利用第一性原理分析了平坦Friedmann-Robertson-Walker时空中任意源的辐射。得到的解析解明确地表明宇宙学红移不是运动学的起源，源和观测者可以被视为在任何时候都是相对静止的。同时，在标准宇宙学中，度规随时间变化对光传播的影响似乎被低估了。由度规的线性时变引起的宇宙学红移是定义明确的空间距离的指数函数而不是线性函数，并且源的视亮度包含更强的指数衰减因子。
英文摘要：
The first principles analysis of the radiation by an arbitrary source in a flat Friedmann-Robertson-Walker space-time is presented. The obtained analytical solution explicitly shows that the cosmological redshift is not of kinematic origin and that the source and the observer may be regarded as being at rest with respect to eachother at all times. At the same time the effect of the time-variation of the metric on the propagation of light appears to be underestimated in the standard cosmology. The cosmological redshift caused by the linear time-variation of the metric turns out to be an exponential rather than linear function of the well-defined spatial distance and the apparent brightness of the source contains an even stronger exponential decay factor.
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。
