Data Release 2 of S-PLUS: accurate template-fitting based photometry covering $\sim$1000 square degrees in 12 optical filters

Abstract

The Southern Photometric Local Universe Survey (S-PLUS) is an ongoing survey of $\sim$9300 deg${}^2$ 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 deg${}^2$. The data has been fully calibrated using a new photometric calibration technique suitable for the new generation of wide-field multi-filter surveys. This technique consists of a ${\chi }^2$ minimisation to fit synthetic stellar templates to already calibrated data from other surveys, eliminating the need for standard stars and reducing the survey duration by $\sim$15\%. 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 $\lesssim 10$ mmags for filters J0410, J0430, $g$, J0515, $r$, J0660, $i$, J0861 and $z$; $\lesssim 15$ mmags for filter J0378; and $\lesssim 25$ 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 characterisation of the data. We show that, for a minimum signal-to-noise threshold of 3, the photometric depths of the DR2 range from 19.9 mag to 21.3 mag (measured in Petrosian apertures), depending on the filter. The S-PLUS DR2 can be accessed from the website: https://splus.cloud}{https://splus.cloud.

29 pages, 26 figures, 7 tables

References in corpus (16)

• Stellar SEDs from 0.3-2.5 Microns: Tracing the Stellar Locus and Searching for Color Outliers in SDSS and 2MASS
• The unWISE Catalog: Two Billion Infrared Sources from Five Years of WISE Imaging
• The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Baryon acoustic oscillations with Lyman-$\alpha$ forests
• SDSS Standard Star Catalog for Stripe 82: the Dawn of Industrial 1% Optical Photometry
• SkyMapper Southern Survey: Second Data Release (DR2)
• A new library of theoretical stellar spectra with scaled-solar and alpha-enhanced mixtures
• Testing the Accuracy of Synthetic Stellar Libraries
• The Photometric Metallicity and Carbon Distributions of the Milky Way's Halo and Solar Neighborhood from S-PLUS Observations of SDSS Stripe 82
• On the discovery of stars, quasars, and galaxies in the Southern Hemisphere with S-PLUS DR2
• SPLUSJ210428.01-004934.2: An Ultra Metal-Poor Star Identified from Narrowband Photometry
• An environmental dependence of the physical and structural properties in the Hydra Cluster galaxies
• Canis Major OB1 stellar groups contents revealed by Gaia
• Deep Learning Assessment of galaxy morphology in S-PLUS DataRelease 1
• J-PLUS: Tools to identify compact planetary nebulae in the Javalambre and southern photometric local universe surveys
• Searching for active low-mass stars in CMa star-forming region: multi-band photometry with T80S
• S-PLUS: LEnticular Galaxies in Stripe 82

Cited by in corpus (19)

• The Pristine survey -- XXIII. Data Release 1 and an all-sky metallicity catalogue based on Gaia DR3 BP/RP spectro-photometry
• J-PLUS: Stellar Parameters, C, N, Mg, Ca and [α/Fe] Abundances for Two Million Stars from DR1
• Mining S-PLUS for Metal-Poor Stars in the Milky Way
• TOPz: Photometric redshifts for J-PAS
• Gaia's brightest very metal-poor (VMP) stars. Metallicity catalogue of a thousand VMP stars from Gaia's radial velocity spectrometer spectra
• Galaxy evolution in compact groups I: Revealing a transitional galaxy population through a multiwavelength approach
• Estimating stellar population and emission line properties in S-PLUS galaxies
• The Pristine survey: XXV. The very metal-poor Galaxy: Chemodynamics through the follow-up of the Pristine-Gaia synthetic catalogue
• The S-PLUS Ultra-Short Survey: first data release
• Chemodynamical Properties and Ages of Metal-Poor Stars in S-PLUS
• Stellar atmospheric parameters and chemical abundances of about 5 million stars from S-PLUS multi-band photometry
• Galaxy evolution in compact groups II. Witnessing the influence of major structures in their evolution
• Mapping H$\alpha$-Excess Candidate Point Sources in the Southern Hemisphere Using S-PLUS Data
• Targeting cluster galaxies for the 4MOST CHANCES Low-z sub-survey with photometric redshifts
• The Quasar Catalogue for S-PLUS DR4 (QuCatS) and the estimation of photometric redshifts
• Structure and large scale environment of galaxy pairs in the S-PLUS DR4
• M Subdwarf Research III. Spectroscopic Diagnostics for Breaking Parameter Degeneracy
• Ages and metallicities of stellar clusters using S-PLUS narrow-band integrated photometry: the Small Magellanic Cloud
• An ancient system hidden in the Galactic plane?