论文标题

CMB四极的时间演变

Time Evolution of the CMB Quadrupole

论文作者

Loeb, Abraham

论文摘要

我表明,由于太阳加速到银河系中心,宇宙微波背景(CMB)的四极了。该加速度最近由Gaia EDR3测量,意味着每年〜10^{ - 9}的四极杆的分数变化,比CMB最后一个散射表面的演化所预期的数量级要大。

I show that the quadrupole of the Cosmic Microwave Background (CMB) evolves more rapidly than previously expected, as a result of the acceleration of the Sun towards the Galactic center. The acceleration, measured most recently by Gaia EDR3, implies a fractional change in the quadrupole of ~10^{-9} per year, an order of magnitude larger than expected from the evolution in the last scattering surface of the CMB.

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