Hα maps in the Fornax cluster with S-PLUS

REIS LOPES, A.; TELLES, E; SMITH CASTELLI, A. V.; ET AL.

La Serena

Congreso; Galaxies Groups and Clusters III: Laboratories to study galaxy evolution; 2023

Universidad de La Serena, Universidad de Talca y NoirLab

Emission lines in galaxies are a valuable source of information, allowing the study of star formation activity, the identification of active galactic nuclei, among others. The filter configuration of S-PLUS, a wide field 12 photometric band (5 broad and 7 narrow) survey observing the Southern Sky, is ideal to detect emission by its combination of narrow and broad bands. An interesting topic to investigate is the characteristics of the emitters in higher density environments. Do they present a specific location within the cluster? How does the emission morphology appear in these galaxies: distributed in clumps or mostly nuclear? Such analysis can give us clues about the formation of a given cluster. In this context, the Fornax cluster is a great target to be analyzed, as the Hα emission line is located within the J0660 band, and its proximity provides large enough galaxies to study their emission spatial distribution. We developed a code that performs a pixel-to-pixel application of the Three Filter Method to S-PLUS images in order to create Hα maps for Fornax members derived by literature compilation. In this contribution we will present the methodology, and discuss the results associated with the Fornax phase-space diagram.