Publication

New PAU Paper

“The PAU Survey: Photometric redshifts using transfer learning from simulations” by M. Eriksen et al. has been uploaded to arXiv.

It is the first paper demonstrating we can constrain PAUS redshifts with deep learning techniques. Previously we had (Eriksen 2019) shown it worked with template fitting method. Using a deep neural network we managed to improvethe photo-z scatter with 50% for the faintest galaxies. This was possible througha set of different techniques introduced in the paper. Among the most important was combining simulated and observed data when training the neural network.We also included techniques like auto-encoders to extract information about the galaxy SEDs.

Link to arXiv

Latest Group News

Event

CEPC 2025 International Workshop takes place in Barcelona

June 19, 2025

The 2025 European Edition of the International Workshop on the Circular Electron-Positron Collider (CEPC) is currently underway in Barcelona, Spain, from June 16 to 19, hosted by IFAE.

Event

Outreach talk about the latest DESI results

June 11, 2025

Sindhu Satyavolu and Laura Casas delivered the seminar “Probing Cosmic Acceleration with DESI: Is Dark Energy Evolving?” at the Sala de Graus II (UAB), in a hybrid format. The speakers presented the latest results from the Dark Energy Spectroscopic Instrument (DESI) and introduced key cosmological concepts to ensure accessibility for a non-specialist audience.

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