宇宙学红移的时间漂移及其方差
Time drift of cosmological redshifts and its variance
摘要:
导出了宇宙学扰动对宇宙学红移时间漂移的贡献。它示出的主导修正来自于发射器和观测器的局部加速度。在z=2-4时,这种效应的幅度估计约为漂移信号的1%,但通过使用许多吸收线和类星体,可以很容易地降低到0.1%。
英文摘要:
The contribution of cosmological perturbations to the time drift of the cosmological redshift is derived. It is shown that the dominant correction arises from the local acceleration of both the emitter and the observer. The amplitude of this effect is estimated to be of the order of 1% of the drift signal at z=2-4, but can easily be lowered down to 0.1% by using many absorption lines and quasars.
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