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  • Pelló, R. (author)

The WIRCam Ultra Deep Survey (WUDS) I. Survey overview and UV luminosity functions at z similar to 5 and z similar to 6

  • Article/chapterEnglish2018

Publisher, publication year, extent ...

  • 2018-11-29
  • EDP Sciences,2018
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:su-163608
  • https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-163608URI
  • https://doi.org/10.1051/0004-6361/201732080DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • 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 K-s) over a field of view of similar to 400 arcmin(2). The typical depth of WUDS data reaches between similar to 26.8 in Y and J, and similar to 26 in H and K-s (AB, 3 sigma- 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 similar to 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 similar to [4.5-7] in this field. For these purposes, we include an adjacent shallower area of similar to 1260 arcmin(2) in this region, extracted from the WIRCam Deep Survey (WIRDS), and observed in J, H and K-s 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 Phi* with increased accuracy. Our results on the luminosity function are consistent with a small evolution of both M* and Phi* 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 Phi* 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 similar to 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.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Hudelot, P. (author)
  • Laporte, N. (author)
  • Mellier, Y. (author)
  • McCracken, H. J. (author)
  • Balcells, M. (author)
  • Boone, F. (author)
  • Cardiel, N. (author)
  • Gallego, J. (author)
  • Garzón, F. (author)
  • Guzmán, R. (author)
  • Le Borgne, J. F. (author)
  • Prieto, M. (author)
  • Richard, J. (author)
  • Schaerer, D. (author)
  • Tresse, L. (author)
  • Arnouts, S. (author)
  • Cuby, J. G. (author)
  • Disseau, K. (author)
  • Hayes, MatthewStockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)mhaye (author)
  • Stockholms universitetInstitutionen för astronomi (creator_code:org_t)

Related titles

  • In:Astronomy and Astrophysics: EDP Sciences6200004-63611432-0746

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