Mimicking the halo-galaxy connection using machine learning

Published in MNRAS, 2022

NatalĂ­ S. M. de Santi, et al. 2022, https://doi.org/10.1093/mnras/stac1469 https://doi.org/10.1093/mnras/stac1469

Paper highlights:

  • Uses machine learning to predict galaxy baryonic properties from dark matter halo properties in the IllustrisTNG300 simulation.
  • Combines multiple algorithms (tree-based methods, kNN, neural networks) and applies SMOGN data augmentation to address imbalanced datasets, improving predicted distributions and scatter.
  • Achieves high accuracy for stellar mass and reasonable performance for other properties, reproducing galaxy power spectra for different galaxy populations.

You can read the paper here.