Characterizing Halpha emission in the Fornax cluster with S-PLUS

LOPES, A. R.; SMITH CASTELLI, A.V.; TELLES, E.; CORTESI, A.; FERRARI, F.

Montevideo

Congreso; XVII Latin American Regional IAU Meeting; 2023

Emission lines in galaxies are a valuable source of information, allowing the study of star formationactivity, the identification of active galactic nuclei, among others. The filter configuration of S-PLUS(Southern Photometric Local Universe Survey) is ideal to detect emission by its combination of 7 narrow and 5 broad optical passband filters. An interesting topic to investigate is the characteristics of the emitters in high density environments. Do they present a specific location within the cluster? How is the relation between the emission morphology and the galaxy morphology? The answer to such questions 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 Halpha+[NII] emission lines are located within the J0660 band of S-PLUS, and its proximity provides large enough galaxies to study their emission spatial distribution. In this talk we will present our code (P.E.L.E., Pixel-to-pixel Emission Line Estimate) to create Halpha+[NII] maps based on the three filter method applied to S-PLUS images, and our main results derived for 213 Fornax galaxy members, including the spatial distribution and the phase-space diagram of Halpha emitters, the relation between Halpha emission and the galaxy Sersic index, and the comparison between P.E.L.E. maps and the results from Fornax 3D project.