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Título:
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The WIRCam Ultra Deep Survey (WUDS) I. Survey overview and UV luminosity functions at z similar to 5 and z similar to 6
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Autores:
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Pelló, R. ;
Hudelot, P. ;
Laporte, N. ;
Mellier, Y. ;
McCraken, H.J. ;
Balcells, M. ;
Boone, F. ;
Cardiel López, Nicolás ;
Gallego Maestro, Jesús ;
Garzón, F. ;
Guzmán, R.G. ;
Le Borgne, J.F. ;
Prieto, M. ;
Richard, J. ;
Schaerer, D. ;
Tresse, L. ;
Arnouts, S. ;
Cuby, J.G. ;
Disseau, K. ;
Hayes, M.
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Tipo de documento:
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texto impreso
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Editorial:
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EDP SCIENCES S A, 2018-11-29
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Dimensiones:
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application/pdf
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Nota general:
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cc_by
info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Astrofísica
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Tipo = Artículo
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Resumen:
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The aim of this paper is to introduce the WIRCam Ultra Deep Survey (WUDS), a near-IR photometric survey carried out at the CFH Telescope in the field of the CFHTLS-D3 field (Groth Strip). WUDS includes four near-IR bands (Y, J, H and Ks) over a field of view of ?400 arcmin^(2) . The typical depth of WUDS data reaches between ?26.8 in Y and J, and ?26 in H and K_(s) (AB, 3? in 1.3´´ aperture), whereas the corresponding depth of the CFHTLS-D3 images in this region ranges between 28.6 and 29 in ugr, 28.2 in i and 27.1 in z (same S/N and aperture). The area and depth of this survey were specifically tailored to set strong constraints on the cosmic star formation rate and the luminosity function brighter or around L* in the z ? 6?10 redshift domain, although these data are also useful for a variety of extragalactic projects. This first paper is intended to present the properties of the public WUDS survey in details: catalog building, completeness and depth, number counts, photometric redshifts, and global properties of the galaxy population. We have also concentrated on the selection and characterization of galaxy samples at z ? [4.5?7] in this field. For these purposes, we include an adjacent shallower area of ?1260 arcmin^(2) in this region, extracted from the WIRCam Deep Survey (WIRDS), and observed in J, H and Ks bands. UV luminosity functions were derived at z ? 5 and z ? 6 taking advantage from the fact that WUDS covers a particularly interesting regime at intermediate luminosities, which allows a combined determination of M* and ?* with increased accuracy. Our results on the luminosity function are consistent with a small evolution of both M* and ?* between z = 5 and z = 6, irrespective of the method used to derive them, either photometric redshifts applied to blindly-selected dropout samples or the classical Lyman Break Galaxy color-preselected samples. Our results lend support to higher ?* determinations at z = 6 than usually reported. The selection and combined analysis of different galaxy samples at z ? 7 will be presented in a forthcoming paper, as well as the evolution of the UV luminosity function between z ? 4.5 and 9. WUDS is intended to provide a robust database in the near-IR for the selection of targets for detailed spectroscopic studies, in particular for the EMIR/GTC GOYA Survey.
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En línea:
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https://eprints.ucm.es/id/eprint/51065/1/cardiel104libre%2BCC.pdf
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