J-PLUS: The star formation main sequence and rate density at d less than or similar to 75 Mpc
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AutorVilella Rojo, G.; Galbany González, Lluis; González Delgado, Rosa María; Vílchez Medina, José Manuel
Galaxies: star formationGalaxies: statistics
Published version: Vilella-Rojo, G... [et al.] (2021). J-PLUS: The star formation main sequence and rate density at d≲ 75 Mpc. Astronomy & Astrophysics, 650, A68. [https://doi.org/10.1051/0004-6361/202039156]
PatrocinadorGovernment of Spain through the Fondo de Inversiones de Teruel; Government of Aragon through the Fondo de Inversiones de Teruel; Spanish Ministry of Science, Innovation and Universities (MCIU/AEI/FEDER, UE) PGC2018-097585-B-C21 PGC2018-097585-B-C22; Spanish Ministry of Economy and Competitiveness (MINECO) AYA2015-66211-C2-1-P AYA2015-66211-C2-2 AYA2012-30789 ICTS-2009-14; European FEDER funding FCDD104E-867 FCDD13-4E-2685; State Agency for Research of the Spanish MCIU through the "Center of Excellence Severo Ochoa" award SEV2017-0709 AYA2016-79724-C4-4P; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPQ); Fundacao de Apoio a Pesquisa do Distrito Federal (FAPDF) 308105/2018-4; Financiadora de Estudos e Projetos -FINEP through the National Observatory of Brazil REF. 1217/13 -01.13.0279.00 REF 0859/10 -01.10.0663.00; National Aeronautics & Space Administration (NASA); Aragon Government through the Research Group E96 Aragon Government through the Research Group E103 Aragon Government through the Research Group E16_17R
Aims. Our goal is to estimate the star formation main sequence (SFMS) and the star formation rate density (SFRD) at z <= 0.017 (d less than or similar to 75 Mpc) using the Javalambre Photometric Local Universe Survey (J-PLUS) first data release, that probes 897.4 deg(2) with twelve optical bands.Methods. We extract the H alpha emission flux of 805 local galaxies from the J-PLUS filter J0660, being the continuum level estimated with the other eleven J-PLUS bands, and the dust attenuation and nitrogen contamination corrected with empirical relations. Stellar masses (M-star), H alpha luminosities (L-H alpha), and star formation rates (SFRs) were estimated by accounting for parameters covariances. Our sample comprises 689 blue galaxies and 67 red galaxies, classified in the (u-g) vs. (g-z) color-color diagram, plus 49 AGN.Results. The SFMS is explored at log M-star greater than or similar to 8 and it is clearly defined by the blue galaxies, with the red galaxies located below them. The SFMS is described as log SFR=0.83log M-star-8.44. We find a good agreement with previous estimations of the SFMS, especially those based on integral field spectroscopy. The H alpha luminosity function of the AGN-free sample is well described by a Schechter function with log L-H alpha = 41.34 log L H alpha = 41.34 , log (*)=-2.43, and alpha=-1.25. Our measurements provide a lower characteristic luminosity than several previous studies in the literature.Conclusions. The derived star formation rate density at d less than or similar to 75 Mpc is log rho (SFR)=-2.10 +/- 0.11, with red galaxies accounting for 15% of the SFRD. Our value is lower than previous estimations at similar redshift, and provides a local reference for evolutionary studies regarding the star formation history of the Universe.