Browsing by Author "Garrison, Lehman H."

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    • A Universal Equation to Predict Ω m from Halo and Galaxy Catalogs 

      Shao, Helen; de Santi, Natalí S. M.; Villaescusa-Navarro, Francisco; Teyssier, Romain; Ni, Yueying; Anglés-Alcázar, Daniel; Genel, Shy; Steinwandel, Ulrich P.; Hernández-Martínez, Elena; Dolag, Klaus; Lovell, Christopher C.; Garrison, Lehman H.; Visbal, Eli; Kulkarni, Mihir; Hernquist, Lars; Castro, Tiago; Vogelsberger, Mark (2023-10-18)
      We discover analytic equations that can infer the value of Ωm from the positions and velocity moduli of halo and galaxy catalogs. The equations are derived by combining a tailored graph neural network (GNN) architecture ...