从使用SDSS和2dF GRS星系巡天的数计数$N(z)$的傅立叶分析得到的星系红移丰度周期性
Galaxy redshift abundance periodicity from Fourier analysis of number counts $N(z)$ using SDSS and 2dF GRS galaxy surveys
摘要：
对Sloan数字巡天和2dF星系红移巡天的星系数计数的傅里叶分析表明，SDSS中星系的首选周期红移间距分别为$Δz =$ 0.0102，0.0246和0.0448，与2dF GRS的结果非常一致。质量密度涨落、功率谱$P(z)$和$N_{pairs}$计算证实了红移间距。哈勃定律的应用导致星系优先位于具有周期性间距的共同运动的同心壳层上。两次调查的综合结果表明，$31.7 \pm 1.8$ $h^{-1} Mpc$、$73.4 \pm 5.8$ $h^{-1} Mpc$和$127 \pm 21$ $h^{-1} Mpc$具有规则的同向移动径向距离间距。这一结果与过去宇宙膨胀率的振荡是一致的。
英文摘要：
A Fourier analysis on galaxy number counts from redshift data of both the Sloan Digital Sky Survey and the 2dF Galaxy Redshift Survey indicates that galaxies have preferred periodic redshift spacings of $Δz =$ 0.0102, 0.0246, and 0.0448 in the SDSS and strong agreement with the results from the 2dF GRS. The redshift spacings are confirmed by the mass density fluctuations, the power spectrum $P(z)$ and $N_{pairs}$ calculations. Application of the Hubble law results in galaxies preferentially located on co-moving concentric shells with periodic spacings. The combined results from both surveys indicate regular co-moving radial distance spacings of $31.7 \pm 1.8$ $h^{-1} Mpc$, $73.4 \pm 5.8$ $h^{-1} Mpc$ and $127 \pm 21$ $h^{-1} Mpc$. The results are consistent with oscillations in the expansion rate of the universe over past epochs.
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