Possible observational evidence for cosmic filament spin

@article{Wang2021PossibleOE,
  title={Possible observational evidence for cosmic filament spin},
  author={Peng Wang and Noam I. Libeskind and Elmo Tempel and Xi Kang and Quan Guo},
  journal={Nature Astronomy},
  year={2021},
  volume={5},
  pages={839-845}
}
Although structures in the Universe form on a wide variety of scales, from small dwarf galaxies to large super clusters, the generation of angular momentum across these scales is poorly understood. Here we investigate the possibility that filaments of galaxies—cylindrical tendrils of matter hundreds of millions of light years across—are themselves spinning. By stacking thousands of filaments together and examining the velocity of galaxies perpendicular to the filament’s axis (via their redshift… 

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Ming-Jie Sheng,1 Sijia Li,1 Hao-Ran Yu,1, ∗ Wei Wang,2, 3 Peng Wang,4 and Xi Kang2, 5 1Department of Astronomy, Xiamen University, Xiamen, Fujian 361005, China 2Purple Mountain Observatory, Nanjing,

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