Galaxies at z ~ 6: physical properties at the edge of the cosmic reionization

@article{deBarros2015GalaxiesAZ,
  title={Galaxies at z ~ 6: physical properties at the edge of the cosmic reionization},
  author={Stephane de Barros and Eros Vanzella and Laura Pentericci and Adriano Fontana and Andrea Grazian and M. Castellano},
  journal={Proceedings of the International Astronomical Union},
  year={2015},
  volume={11},
  pages={7 - 9}
}
Abstract An important effort has been recently made to detect spectroscopically galaxies at z ~ 6 and higher where the cosmic reionization is thought to occur. The drop of the fraction of Lyman Alpha Emitters (LAEs) at z>6 is currently interpreted as an effect of the increasing neutral hydrogen density. We present preliminary results from the latest VLT/FORS2 programs, combined with ESO archival data, to perform a large census of z ~ 6 galaxies. We derive their physical properties as stellar… Expand
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References

SHOWING 1-10 OF 29 REFERENCES
New observations of z ∼ 7 galaxies: evidence for a patchy reionization
We present new results from our search for z ~ 7 galaxies from deep spectroscopic observations of candidate z dropouts in the CANDELS fields. Despite the extremely low flux limits achieved by ourExpand
Spectroscopic Observations of Lyman-Break Galaxies at Redshift ~ 4, 5 and 6 in the GOODS-South Field
We report on observations of Lyman break galaxies (LBGs) selected from the Great Observatories Origins Deep Survey at mean redshifts z ~ 4, 5, and 6 (B 435-, V 606-, and i 775-band dropouts,Expand
Line Emitting Galaxies Beyond a Redshift of 7: An Improved Method for Estimating the Evolving Neutrality of the Intergalactic Medium
The redshift-dependent fraction of color-selected galaxies revealing Lyman alpha (Lyα) emission, x_(Lyα) has become the most valuable constraint on the evolving neutrality of the early intergalacticExpand
On the evolution of the cosmic ionizing background
We study the observed cosmic ionizing background as a constraint on the nature of the sources responsible for the reionization of the Universe. In earlier work, we showed that extrapolations of theExpand
The blue UV slopes of z ~ 4 Lyman break galaxies: implications for the corrected star formation rate density
Context.The study of the dust extinction in high-redshift galaxies is fundamental to obtain an estimate of the corrected Star Formation Rate Density (SFRD) and to put constraints on galaxy evolutionExpand
The MOSDEF Survey: Measurements of Balmer Decrements and the Dust Attenuation Curve at Redshifts z~1.4-2.6
We present results on the dust attenuation curve of z~2 galaxies using early observations from the MOSFIRE Deep Evolution Field (MOSDEF) survey. Our sample consists of 224 star-forming galaxies withExpand
Cosmic Reionization and Early Star-forming Galaxies: a Joint Analysis of new Constraints From Planck and the Hubble Space Telescope
We discuss new constraints on the epoch of cosmic reionization and test the assumption that most of the ionizing photons responsible arose from high-redshift star-forming galaxies. Good progress hasExpand
Reionization after Planck: The Derived Growth of the Cosmic Ionizing Emissivity now matches the Growth of the Galaxy UV Luminosity Density
Thomson optical depth tau measurements from Planck provide new insights into the reionization of the universe. In pursuit of model-independent constraints on the properties of the ionising sources,Expand
Evolution in the escape fraction of ionizing photons and the decline in strong Lyα emission from z > 6 galaxies
The rapid decline in the number of strong Lyman Alpha (Lya) emitting galaxies at z > 6 provides evidence for neutral hydrogen in the IGM, but is difficult to explain with plausible models forExpand
Faint AGNs at z > 4 in the CANDELS GOODS-S field: looking for contributors to the reionization of the Universe
Context. Establishing the number of faint active galactic nuclei (AGNs) at z = 4-6 is crucial to understanding their cosmological importance as main contributors to the reionization of the Universe.Expand
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