The Four Cosmic Tidal Web Elements from the β-skeleton

  title={The Four Cosmic Tidal Web Elements from the $\beta$-skeleton},
  author={John F. Su'arez-P'erez and Yeimy Camargo and Xiao-Dong Li and Jaime E. Forero-Romero},
  journal={The Astrophysical Journal},
Precise cosmic web classification of observed galaxies in massive spectroscopic surveys can be either highly uncertain or computationally expensive. As an alternative, we explore a fast Machine Learning-based approach to infer the underlying dark matter tidal cosmic web environment of a galaxy distribution from its β-skeleton graph. We develop and test our methodology using the cosmological magnetohydrodynamic simulation Illustris-TNG at z = 0. We explore three different tree-based machine… 



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