The Fourth S-PLUS Data Release: 12-filter photometry covering $sim3000$ square degrees in the southern hemisphere
Fabio R. Herpich, Felipe Almeida-Fernandes, Gustavo B. Oliveira Schwarz, Erik V. R. Lima, Lilianne Nakazono, Javier Alonso-Garc’ia, Marcos A. Fonseca-Faria, Marilia J. Sartori, Guilherme F. Bolutavicius, Gabriel Fabiano de Souza, Eduardo A. Hartmann, Liana Li, Luna Espinosa, Antonio Kanaan, William Schoenell, Ariel Werle, Eduardo Machado-Pereira, Luis A. Guti’errez-Soto, Tha’is Santos-Silva, Analia V. Smith Castelli, Eduardo A. D. Lacerda, Cassio L. Barbosa, H’elio D. Perottoni, Carlos E. Ferreira Lopes, Raquel Ruiz Valenc{c}a, Pierre Augusto Re Martho, Clecio R. Bom, Charles J. Bonatto, Maiara S. Carvalho, Vitor Cernic, Roberto Cid Fernandes, Paula Coelho, Ariana Cortesi, Barbara Cubillos Palma, Lia Doubrawa, Vincenzo Sivero Ferreira Alberice, Fredi Quispe Huaynasi, Gabriel Jacob Perin, Marcelo Jaque Arancibia, Angela Krabbe, Ciria Lima-Dias, Luis Lomel’i-N’u~nez, Raimundo Lopes de Oliveira, Amanda R. Lopes, Andr’e Luiz Figueiredo, Elismar L"osch, Felipe Navarete, Julia Mello de Oliveira, Roderik Overzier, Vinicius M. Placco, Fernando V. Roig, Mariana Rubet, Andr’e Santos, Victor Hugo Sasse, Julia Thaina-Batista, Sergio Torres-Flores, Timothy C. Beers, Alvaro Alvarez-Candal, Stavros Akras, Swayamtrupta Panda, Guilherme Limberg, Jos’e Luis Nilo Castell’on, Eduardo Telles, Paulo Afranio Lopes, Gissel Dayana Pardo Montaguth, Leandro Beraldo e Silva, Pedro K. Humire, Marcelo Borges Fernandes, Vin’icius Cordeiro, Tiago Ribeiro, Claudia Mendes de Oliveira
arXiv:2407.20701v1 Announce Type: new
Abstract: The Southern Photometric Local Universe Survey (S-PLUS) is a project to map $sim9300$ 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 $21$ mag in the $griz$ and $20$ mag in the $u$ 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 $S/N = 3$ reach from $sim19.5$ for the bluer bands to $sim21.5$ mag on the red. The range of magnitudes over which accurate PSF photometry is obtained is shallower, reaching $sim19$ to $sim20.5$ mag depending on the filter. Based on these photometric data, we provide star-galaxy-quasar classification and photometric redshift for millions of objects.arXiv:2407.20701v1 Announce Type: new
Abstract: The Southern Photometric Local Universe Survey (S-PLUS) is a project to map $sim9300$ 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 $21$ mag in the $griz$ and $20$ mag in the $u$ 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 $S/N = 3$ reach from $sim19.5$ for the bluer bands to $sim21.5$ mag on the red. The range of magnitudes over which accurate PSF photometry is obtained is shallower, reaching $sim19$ to $sim20.5$ mag depending on the filter. Based on these photometric data, we provide star-galaxy-quasar classification and photometric redshift for millions of objects.