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  • 2101.04062v1

    Rights statement: The final, definitive version of this article has been published in the Journal, Astronomy and Astrophysics, 650, 2021, © EDP Sciences.

    Accepted author manuscript, 2.72 MB, PDF document

    Available under license: CC BY-NC: Creative Commons Attribution-NonCommercial 4.0 International License

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J-PLUS: The star formation main sequence and rate density at d <75 Mpc

Research output: Contribution to journalJournal articlepeer-review

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  • G. Vilella-Rojo
  • R. Logroño-García
  • C. López-Sanjuan
  • K. Viironen
  • J. Varela
  • M. Moles
  • A. J. Cenarro
  • D. Cristóbal-Hornillos
  • A. Ederoclite
  • C. Hernández-Monteagudo
  • A. Marín-Franch
  • H. Vázquez Ramió
  • L. Galbany
  • R. M. González Delgado
  • A. Hernán-Caballero
  • A. Lumbreras-Calle
  • P. Sánchez-Blázquez
  • J. M. Vílchez
  • J. Alcaniz
  • R. E. Angulo
  • R. A. Dupke
  • L. Sodré Jr
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Article numberA68
<mark>Journal publication date</mark>30/06/2021
<mark>Journal</mark>Astronomy and Astrophysics
Volume650
Number of pages25
Publication StatusPublished
Early online date8/06/21
<mark>Original language</mark>English

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.

Bibliographic note

The final, definitive version of this article has been published in the Journal, Astronomy and Astrophysics, 650, 2021, © EDP Sciences.