The S-PLUS Fornax Project (S+FP): A first 12-band glimpse of the Fornax galaxy cluster
astro-ph.GA
/ Authors
A. V. Smith Castelli, A. Cortesi, R. F. Haack, A. R. Lopes, J. Thainá-Batista, R. Cid Fernandes, L. Lomelí-Núñez, U. Ribeiro, C. R. de Bom, V. Cernic
and 33 more authors
L. Sodré, L. Zenocratti, M. E. De Rossi, J. P. Calderón, F. Herpich, E. Telles, K. Saha, P. A. A. Lopes, V. H. Lopes-Silva, T. S. Gonçalves, D. Bambrila, N. M. Cardoso, M. L. Buzzo, P. Astudillo Sotomayor, R. Demarco, N. Leigh, M. Sarzi, K. Menéndez-Delmestre, F. R. Faifer, Y. Jiménez-Teja, M. Grossi, J. A. Hernández-Jiménez, A. C. Krabbe
/ Abstract
The Fornax galaxy cluster is the richest nearby (D ~ 20 Mpc) galaxy association in the southern sky. As such, it provides a wealth of oportunities to elucidate on the processes where environment holds a key role in transforming galaxies. Although it has been the focus of many studies, Fornax has never been explored with contiguous homogeneous wide-field imaging in 12 photometric narrow- and broad-bands like those provided by the Southern Photometric Local Universe Survey (S-PLUS). In this paper we present the S-PLUS Fornax Project (S+FP) that aims to comprehensively analyse the galaxy content of the Fornax cluster using S-PLUS. Our data set consists of 106 S-PLUS wide-field frames (FoV ~ 1.4 x 1.4 deg$^2$) observed in five SDSS-like ugriz broad-bands and seven narrow-bands covering specific spectroscopic features like [OII], CaII H+K, H$δ$, G-band, Mg b triplet, H$α$, and the CaII triplet. Based on S-PLUS specific automated photometry, aimed at correctly detecting Fornax galaxies and globular clusters in S-PLUS images, our dataset provides the community with catalogues containing homogeneous 12-band photometry for ~ 3 x 10$^6$ resolved and unresolved objects within a region extending over ~ 208 deg$^2$ (~ 5 Rvir in RA) around Fornax' central galaxy, NGC 1399. We further explore the EAGLE and IllustrisTNG cosmological simulations to identify 45 Fornax-like clusters and generate mock images on all 12 S-PLUS bands of these structures down to galaxies with M$\star \geq 10^8$ M$\odot$. The S+FP dataset we put forward in this first paper of a series will enable a variety of studies some of which are briefly presented.