The Fourth S-PLUS Data Release: 12-filter photometry covering $\sim3000$ square degrees in the southern hemisphere
Abstract
The Southern Photometric Local Universe Survey (S-PLUS) is a project to map sq deg of the sky using twelve bands (seven narrow and five broadbands). Observations are performed with the T80-South telescope, a robotic telescope located at the Cerro Tololo Observatory in Chile. The survey footprint consists of several large contiguous areas, including fields at high and low galactic latitudes, and towards the Magellanic Clouds. S-PLUS uses fixed exposure times to reach point source depths of about mag in the and mag in the and the narrow filters. This paper describes the S-PLUS Data Release 4 (DR4), which includes calibrated images and derived catalogues for over 3000 sq deg, covering the aforementioned area. The catalogues provide multi-band photometry performed with the tools \texttt{DoPHOT} and \texttt{SExtractor} -- point spread function (\PSF) and aperture photometry, respectively. In addition to the characterization, we also present the scientific potential of the data. We use statistical tools to present and compare the photometry obtained through different methods. Overall we find good agreement between the different methods, with a slight systematic offset of 0.05\,mag between our \PSF and aperture photometry. We show that the astrometry accuracy is equivalent to that obtained in previous S-PLUS data releases, even in very crowded fields where photometric extraction is challenging. The depths of main survey (MS) photometry for a minimum signal-to-noise ratio reach from for the bluer bands to mag on the red. The range of magnitudes over which accurate \PSF photometry is obtained is shallower, reaching to mag depending on the filter. Based on these photometric data, we provide star-galaxy-quasar classification and photometric redshift for millions of objects.
Keywords
Cite
@article{arxiv.2407.20701,
title = {The Fourth S-PLUS Data Release: 12-filter photometry covering $\sim3000$ square degrees in the southern hemisphere},
author = {Fabio R. Herpich and Felipe Almeida-Fernandes and Gustavo B. Oliveira Schwarz and Erik V. R. Lima and Lilianne Nakazono and Javier Alonso-García and Marcos A. Fonseca-Faria and Marilia J. Sartori and Guilherme F. Bolutavicius and Gabriel Fabiano de Souza and Eduardo A. Hartmann and Liana Li and Luna Espinosa and Antonio Kanaan and William Schoenell and Ariel Werle and Eduardo Machado-Pereira and Luis A. Gutiérrez-Soto and Thaís Santos-Silva and Analia V. Smith Castelli and Eduardo A. D. Lacerda and Cassio L. Barbosa and Hélio D. Perottoni and Carlos E. Ferreira Lopes and Raquel Ruiz Valença and Pierre Augusto Re Martho and Clecio R. Bom and Charles J. Bonatto and Maiara S. Carvalho and Vitor Cernic and Roberto Cid Fernandes and Paula Coelho and Ariana Cortesi and Barbara Cubillos Palma and Lia Doubrawa and Vincenzo Sivero Ferreira Alberice and Fredi Quispe Huaynasi and Gabriel Jacob Perin and Marcelo Jaque Arancibia and Angela Krabbe and Ciria Lima-Dias and Luis Lomelí-Núñez and Raimundo Lopes de Oliveira and Amanda R. Lopes and André Luiz Figueiredo and Elismar Lösch and Felipe Navarete and Julia Mello de Oliveira and Roderik Overzier and Vinicius M. Placco and Fernando V. Roig and Mariana Rubet and André Santos and Victor Hugo Sasse and Julia Thaina-Batista and Sergio Torres-Flores and Timothy C. Beers and Alvaro Alvarez-Candal and Stavros Akras and Swayamtrupta Panda and Guilherme Limberg and José Luis Nilo Castellón and Eduardo Telles and Paulo Afranio Lopes and Gissel Dayana Pardo Montaguth and Leandro Beraldo e Silva and Pedro K. Humire and Marcelo Borges Fernandes and Vinícius Cordeiro and Tiago Ribeiro and Claudia Mendes de Oliveira},
journal= {arXiv preprint arXiv:2407.20701},
year = {2024}
}
Comments
26 pages, 17 figures, 14 tables, accepted for A&A