EPJ Web of Conferences (Jan 2024)

Generating galaxy clusters mass density maps from mock multiview images via deep learning

  • de Andres Daniel,
  • Cui Weiguang,
  • Yepes Gustavo,
  • De Petris Marco,
  • Aversano Gianmarco,
  • Ferragamo Antonio,
  • De Luca Federico,
  • Muñoz A. Jiménez

DOI
https://doi.org/10.1051/epjconf/202429300013
Journal volume & issue
Vol. 293
p. 00013

Abstract

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Galaxy clusters are composed of dark matter, gas and stars. Their dark matter component, which amounts to around 80% of the total mass, cannot be directly observed but traced by the distribution of diffused gas and galaxy members. In this work, we aim to infer the cluster’s projected total mass distribution from mock observational data, i.e. stars, Sunyaev-Zeldovich, and X-ray, by training deep learning models. To this end, we have created a multiview images dataset from The Three Hundred simulation that is optimal for training Machine Learning models. We further study deep learning architectures based on the U-Net to account for single-input and multi-input models. We show that the predicted mass distribution agrees well with the true one.