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The UV and Ly$��$ Luminosity Functions of galaxies and the Star Formation Rate Density at the end of HI reionization from the VIMOS Ultra-Deep Survey (VUDS)
- Publication Year :
- 2019
- Publisher :
- arXiv, 2019.
-
Abstract
- We establish a robust statistical description of the star-forming galaxy population at the end of cosmic HI reionization ($5.0\le{}z\le6.6$) from a large sample of 52 galaxies with spectroscopically confirmed redshifts from the VIMOS UltraDeep Survey. We identify galaxies with Ly$��$ either in absorption or in emission, at variance with most spectroscopic samples in the literature where Ly$��$ emitters dominate. We find that star-forming galaxies at these redshifts are distributed along a main sequence in the stellar mass vs. SFR plane. We report a flat evolution of the sSFR(z) in 32. The bright end of the Ly$��$ luminosity function has a high number density, indicating a significant star formation activity concentrated in the brightest Ly$��$ emitters (LAE) at these redshifts. LAE with EW>25��~contribute to about 75\% of the total UV-derived SFRD. While our analysis favors a low dust content in 5.0<br />27 pages, submitted to A&A
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi...........5467aa4dc08fc0cdaebfd32cb4cbc6e0
- Full Text :
- https://doi.org/10.48550/arxiv.1903.01884