1. J-PLUS: The star formation main sequence and rate density at d < 75 Mpc
- Author
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Vilella-Rojo, G., Logro��o-Garc��a, R., L��pez-Sanjuan, C., Viironen, K., Varela, J., Moles, M., Cenarro, A. J., Crist��bal-Hornillos, D., Ederoclite, A., Hern��ndez-Monteagudo, C., Mar��n-Franch, A., Rami��, H. V��zquez, Galbany, L., Delgado, R. M. Gonz��lez, Hern��n-Caballero, A., Lumbreras-Calle, A., S��nchez-Bl��zquez, P., Sobral, D., V��lchez, J. M., Alcaniz, J., Angulo, R. E., Dupke, R. A., and Sodr��, L.
- Subjects
Astrophysics of Galaxies (astro-ph.GA) ,Astrophysics::Solar and Stellar Astrophysics ,FOS: Physical sciences ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Astrophysics::Galaxy Astrophysics - Abstract
Our goal is to estimate the star formation main sequence (SFMS) and the star formation rate density (SFRD) at z 8 and it is clearly defined by the blue galaxies, with the red galaxies located below them. The SFMS is described as log SFR = 0.83 log M - 8.44. We find a good agreement with previous estimations of the SFMS, especially those based on integral field spectroscopy. The Halpha luminosity function of the AGN-free sample is well described by a Schechter function with log L* = 41.34, log phi* = -2.43, and alpha = -1.25. Our measurements provide a lower characteristic luminosity than several previous studies in the literature. The derived star formation rate density at d < 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., 26 pages. Accepted for publication in Astronomy and Astrophysics
- Published
- 2021
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