Catalogue of AGN Contribution Fraction Predictions for Euclid Q1 Sources

This catalogue accompanies the publication: "Euclid Quick Data Release (Q1). First Euclid statistical study of the active galactic nuclei contribution fraction", Margalef-Bentabol B., Wang L., La Marca A. et al. (2026). It provides predicted PSF/AGN contribution fractions for a sample of sources in the Euclid Q1 fields, together with source identifiers and sky coordinates. For a description of the sample selection, see the associated publication. The catalogue is distributed in FITS format and includes: Euclid ID: ID Sky coordinates: ra, dec Predicted PSF /AGNcontribution fraction: AGN_fraction The AGN fractions were obtained using the fine-tuned model described in the associated publication.