First results of an observational test of a double reionization scenario by searching for galaxies at high redshift

Bibcode
2019hsax.conf..205C
Cabello, C.; Gallego, J.; Cardiel, N.; Guzmán, R.; Rodríguez-Espinosa, J. M.; Herrero, A.; Mas-Hesse, M.; Salvador-Solé, E.; Manrique, A.; Marín-Franch, A.; Eikenberry, S.
Bibliographical reference

Highlights on Spanish Astrophysics X, Proceedings of the XIII Scientific Meeting of the Spanish Astronomical Society held on July 16-20, 2018, in Salamanca, Spain, ISBN 978-84-09-09331-1. B. Montesinos, A. Asensio Ramos, F. Buitrago, R. Schödel, E. Villaver, S. Pérez-Hoyos, I. Ordóñez-Etxeberria (eds.) p. 205-205

Advertised on:
3
2019
Number of authors
11
IAC number of authors
2
Citations
0
Refereed citations
0
Description
The study of high redshift galaxies is crucial for understanding the reionization process, the formation and evolution of galaxies, and the large-scale structure in the Universe. The main goal of this project was to obtain an ultra-deep image taken with a narrow-band filter (FWHM = 11nm and central wavelength λ_{c} = 1.254 μm), designed by the ALBA team, and installed in the CIRCE nIR camera for GTC, with the aim of detecting LAEs (Luminous Lyman-α Emitters) at z = 9.3 by the flux excess due to their Lyα emission. In this sense, this project would allow to support or reject the double reionization scenario predicted by the AMIGA model (Salvador-Solè 2015). The ultra-deep image has been obtained within the Extended Groth Strip (EGS) field, reaching a limiting AB magnitude ˜ 22 in the ALBA narrow-band filter. With this depth we could not detect any candidate for LAE at high redshift. In addition, we have performed a scientific analysis of some properties of the identified galaxies, gathering the available ancillary information of these objects from the 3D-HST and CANDELS surveys.
Type
Non-refereed

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