Observational Evidence for a Galaxy Overdensity/Protocluster at z=6.5

Bibcode
2017gcf..confE..12G
DOI
10.5281/zenodo.831749
Guzmán, R.; Chanchaiworawit, K.,; Rodríguez-Espinosa, J. M.; Calvi, R.; Salvador-Solé, E.; Manrique, A.; Marín-Franch, A.; Gallego, J.; Mas-Hesse, J. M.; Herrero, A.
Bibliographical reference

Early stages of Galaxy Cluster Formation (GCF) 2017: Mergers, Protoclusters, and Star Formation in Overdense Environments. Proceedings of the conference held 17-21 July, 2017 in Garching, Germany. Online at http://www.eso.org/sci/meetings/2017/GCF2017.html, id.12

Advertised on:
7
2017
Number of authors
10
IAC number of authors
3
Citations
1
Refereed citations
1
Description
We present the results of our search near the end of the Reionization Epoch for faint galaxies around two close, massive Lyman-α emitters (LAEs) at redshift 6.5, discovered in the SXDS field, using very deep OSIRIS images and spectroscopy obtained at the Gran Telescopio Canarias (GTC). The luminosity function of these LAEs shows that this area is about 1.5 times denser than the general field galaxy population at z = 6.5. Our results implies the discovery of one of the earliest protoclusters in the Universe, which will evolve to resemble the most massive galaxy clusters today.
Type
Non-refereed
Galaxies
Reionization
Early universe

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