论文标题
Z〜16的流行III产生的防尘屏
A Pop III generated dust screen at z~16
论文作者
论文摘要
寻找替代宇宙学模型的搜索主要是由于LCDM的预测与不断改进的观测值之间的不一致，例如在低红移和高红移时测得的H_0值的差异。一种模型，尤其是称为R_H = CT宇宙，在减轻或消除所有不一致方面已经非常成功。然而，在这张照片中，宇宙微波背景（CMB）中的各向异性会出现在红移Z〜16处，而不是通过Z〜1080的重组区的波动出现。我们在这里证明，在早期宇宙中创建的CMB，然后通过流行III产生的防尘屏幕散射，目前的数据还不能排除。实际上，Planck测量值在CMB功率谱中提供了约2-4％的频率依赖性，这将自然地解释为通过粉尘的光学深度变化，但不能解释为Thomson散射为主导的重组环境。即将进行的测量应能够轻松地通过检测Z〜1080处的重组线的检测来区分这两种情况，这将完全消除灰尘后处理的想法。
The search for alternative cosmological models is largely motivated by the growing discordance between the predictions of LCDM and the ever improving observations, such as the disparity in the value of H_0 measured at low and high redshifts. One model, in particular, known as the R_h=ct universe, has been highly successful in mitigating or removing all of the inconsistencies. In this picture, however, the anisotropies in the cosmic microwave background (CMB) would have emerged at a redshift z ~ 16, rather than via fluctuations in the recombination zone at z~1080. We demonstrate here that a CMB created in the early Universe, followed by scattering through a Pop III generated dust screen, cannot yet be ruled out by the current data. Indeed, the Planck measurements provide a hint of a ~2-4% frequency dependence in the CMB power spectrum, which would be naturally explained as a variation in the optical depth through the dust, but not a Thomson scattering-dominated recombination environment. Upcoming measurements should be able to easily distinguish between these two scenarios, e.g., via the detection of recombination lines at z~1080, which would completely eliminate the dust reprocessing idea.
