Published February 2, 2022
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Data Release 2 of S-PLUS: Accurate template-fitting based photometry covering ∼1000 deg2 in 12 optical filters

  • 1. Departamento de Astronomia , IAG, Universidade de São Paulo, Rua do Matão, 1226, 05509-900 São Paulo, Brazil
  • 2. University of São Paulo
  • 3. Observatório Nacional/MCTIC , R. Gen. José Cristino, 77, 20921-400 Rio de Janeiro, Brazil
  • 4. Universidade Presbiteriana Mackenzie , R. da Consolação, 930 - Consolação, São Paulo, Brazil
  • 5. INAF - Osservatorio Astronomico di Padova , Vicolo Osservatorio 5, I-35122 Padova, Italy
  • 6. Departamento de Física, Universidade Federal de Santa Catarina , Florianópolis, SC 88040-900, Brazil
  • 7. Universidade Federal de Santa Catarina
  • 8. Department of Physics and JINA Center for the Evolution of the Elements, University of Notre Dame , Notre Dame, IN 46556, USA
  • 9. University of Notre Dame
  • 10. Centro Brasileiro de Pesquisas Físicas , Rua Dr. Xavier Sigaud 150, CEP 22290-180 Rio de Janeiro, RJ, Brazil
  • 11. Centro Federal de Educação Tecnológica Celso Suckow da Fonseca, Rodovia Mário Covas , lote J2, quadra J, Distrito Industrial de Itaguaí, Itaguaí, RJ, CEP 23810-000, Brazil
  • 12. Community Science and Data Center/NSF's NOIRLab , 950 N. Cherry Ave., Tucson, AZ 85719, USA
  • 13. Centro de Astronomía (CITEVA), Universidad de Antofagasta , Av. Angamos 601, Antofagasta, Chile
  • 14. Millennium Institute of Astrophysics , Nuncio Monseñor Sotero Sanz 100, Of. 104, Providencia, Santiago, Chile
  • 15. Departamento de Física, Centro Universitário da FEI; Av. Humberto de Alencar Castelo Branco , 3972, 09850-901 São Bernardo do Campo-SP, Brazil
  • 16. Departamento de Astronomia, Instituto de Física, UFRGS , Av. Bento Gonçalves, 9500 Porto Alegre, RS, Brazil
  • 17. Shanghai Astronomical Observatory, Chinese Academy of Sciences , 80 Nandan Rd, 200030 Shanghai, China
  • 18. Chinese Academy of Sciences
  • 19. Departamento de Física, Universidade Federal de Sergipe , Av. Marechal Rondon, S/N, 49000-000 São Cristóvão, SE, Brazil
  • 20. SOAR Telescope/NSF's NOIRLab , Avda Juan Cisternas 1500, 1700000 La Serena, Chile
  • 21. NOAO , PO Box 26732, Tucson, AZ 85726, USA
  • 22. GMTO Corporation , 465 N. Halstead Street, Suite 250 Pasadena, CA 91107, USA

Description

ABSTRACT The Southern Photometric Local Universe Survey (S-PLUS) is an ongoing survey of ∼9300 deg2 in the southern sky in a 12-band photometric system. This paper presents the second data release (DR2) of S-PLUS, consisting of 514 tiles covering an area of 950 deg2. The data has been fully calibrated using a new photometric calibration technique suitable for the new generation of wide-field multifilter surveys. This technique consists of a χ2 minimization to fit synthetic stellar templates to already calibrated data from other surveys, eliminating the need for standard stars and reducing the survey duration by ∼15 per cent. We compare the template-predicted and S-PLUS instrumental magnitudes to derive the photometric zero-points (ZPs). We show that these ZPs can be further refined by fitting the stellar templates to the 12 S-PLUS magnitudes, which better constrain the models by adding the narrow-band information. We use the STRIPE82 region to estimate ZP errors, which are ≲ 10 mmags for filters J0410, J0430, g, J0515, r, J0660, i, J0861 and z; ≲ 15 mmags for filter J0378; and ≲ 25 mmags for filters u and J0395. We describe the complete data flow of the S-PLUS/DR2 from observations to the final catalogues and present a brief characterization of the data. We show that, for a minimum signal-to-noise threshold of 5, the photometric depths of the DR2 range from 19.1 to 20.5 mag (measured in Petrosian apertures), depending on the filter. The S-PLUS DR2 can be accessed from the website: https://splus.cloud.
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