From cluster detection to galaxy alignment: an overview of SCALE with S-PLUS survey

Galaxy clusters and groups are vital tools for exploring and understanding the Universe.

This presentation focuses on results based on the SCALE sample from the Southern Photometric Local Universe Survey (S-PLUS), including galaxy cluster detection, membership estimation and characterization, matching with eROSITA X-ray data, and a detailed study of galaxy spatial alignments out to 6R200.

We discuss the purity and completeness of the resulting catalogs using X-ray comparisons, potential biases introduced by the matching technique, the preprocessing of galaxies associated with filaments, and the parameters that enhance the alignment signal between brightest cluster galaxies (BCGs) and their satellite populations. Together, these analyses demonstrate the potential of the S-PLUS survey for cluster identification and environmental studies.

Fecha y lugar: 1/02/2026 – 12:30 | Salón de Actos
Lia Doubrawa
University of Helsinki – Finland, Universidade de São Paulo – Brazil