论文标题
星系旋转方向的不对称性 - 从DES的数据和与其他四个天空调查进行比较的分析
Asymmetry in galaxy spin directions -- analysis of data from DES and comparison to four other sky surveys
论文作者
论文摘要
本文显示了对DES成像的739,286个星系的星系自旋方向的大规模分布的分析。星系的自旋方向的分布表现出大规模偶极子轴。将偶极子轴与类似分析的位置与SDS，Pan-Starrs和Desi传统调查的数据进行比较表明，所有天空调查均在52 $^o $以内的偶极子轴彼此之间显示出偶极子轴，均在1 $σ$误差范围内。尽管非随机分布是出乎意料的，但无论望远镜如何，所有天空调查中的发现都是一致的，或者是手动或自动注释数据的。讨论可能导致观察结果的可能错误。本文还讨论了以前的研究，显示了相反的结论，并分析了导致这些结果的决策。尽管该观察结果是挑衅的，并且需要进一步研究，但现有的证据证明了认为从地球观察到的星系旋转方向的论点不一定是随机分布的。可能的解释可能与成熟的宇宙学理论有关，也与星系的内部结构有关。
The paper shows an analysis of the large-scale distribution of galaxy spin directions of 739,286 galaxies imaged by DES. The distribution of the spin directions of the galaxies exhibits a large-scale dipole axis. Comparison of the location of the dipole axis to a similar analysis with data from SDSS, Pan-STARRS, and DESI Legacy Survey shows that all sky surveys exhibit dipole axes within 52$^o$ or less from each other, well within 1$σ$ error. While non-random distribution is unexpected, the findings are consistent across all sky surveys, regardless of the telescope or whether the data were annotated manually or automatically. Possible errors that can lead to the observation are discussed. The paper also discusses previous studies showing opposite conclusions,and analyzes the decisions that led to these results. Although the observation is provocative, and further research will be required, the existing evidence justifies to consider the contention that galaxy spin directions as observed from Earth are not necessarily randomly distributed. Possible explanations can be related to mature cosmological theories, but also to the internal structure of galaxies.
