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Synapse
February 5, 20260 citations

Estimating Redshift and Physical Properties of Galaxies Using Euclid Photometry

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Overview

Novel method estimates galaxy properties using broadband photometry, suggesting improved accuracy with ground-based data.

Key Points

  • This research aims to develop reliable methodologies for estimating the redshift and physical properties of galaxies using photometry from the Euclid Space Telescope.
  • Developed a property-estimation pipeline using CatBoost for regression trees.
  • Evaluated performance on mock datasets from Euclid and ground-based photometry.
  • Estimated prediction uncertainties computationally efficiently.
  • Tested different mock catalogues and filter combinations.
  • Validation of competitive quality in photometric redshift and property estimates.
  • Unreliable estimates observed for galaxies at z > 3.5 due to sparsity.
  • Inclusion of ground-based photometry notably improved property estimates.

Cite This Study

A 2025 study studied this question.

synapsesocial.com/papers/698434ebf1d9ada3c1fb3a70https://doi.org/10.1051/0004-6361/202452468/pdf
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