---
res:
  bibo_abstract:
  - We present grism spectra taken with the Advanced Camera for Surveys (ACS) to identify
    29 red sources with (i775 - z850) ≥ 0.9 in the Hubble Ultra Deep Field (HUDF).
    Of these, 23 are found to be galaxies at redshifts between z = 5.4 and 6.7, identified
    by the break at 1216 Å due to intergalactic medium (IGM) absorption; two are late-type
    dwarf stars with red colors; and four are galaxies with colors and spectral shapes
    similar to dust-reddened or old galaxies at redshifts z ≈ 1-2. This constitutes
    the largest uniform, flux-limited sample of spectroscopically confirmed galaxies
    at such faint fluxes (z850 ≤ 27.5). Many are also among the most distant spectroscopically
    confirmed galaxies (at redshifts up to z = 6.7). We find a significant overdensity
    of galaxies at redshifts z = 5.9 ± 0.2. Nearly two-thirds of the galaxies in our
    sample (15/23) belong to this peak. Taking into account the selection function
    and the redshift sensitivity of the survey, we get a conservative overdensity
    of at least a factor of 2 along the line of sight. The galaxies found in this
    redshift peak are also localized in the plane of the sky in a nonrandom manner,
    occupying about half of the ACS chip. Thus the volume overdensity is a factor
    of 4. The star formation rate derived from detected sources in this overdense
    region is sufficient to reionize the local IGM.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: S.
      foaf_name: Malhotra, S.
      foaf_surname: Malhotra
  - foaf_Person:
      foaf_givenName: J. E.
      foaf_name: Rhoads, J. E.
      foaf_surname: Rhoads
  - foaf_Person:
      foaf_givenName: N.
      foaf_name: Pirzkal, N.
      foaf_surname: Pirzkal
  - foaf_Person:
      foaf_givenName: Zoltán
      foaf_name: Haiman, Zoltán
      foaf_surname: Haiman
      foaf_workInfoHomepage: http://www.librecat.org/personId=7c006e8c-cc0d-11ee-8322-cb904ef76f36
  - foaf_Person:
      foaf_givenName: C.
      foaf_name: Xu, C.
      foaf_surname: Xu
  - foaf_Person:
      foaf_givenName: E.
      foaf_name: Daddi, E.
      foaf_surname: Daddi
  - foaf_Person:
      foaf_givenName: H.
      foaf_name: Yan, H.
      foaf_surname: Yan
  - foaf_Person:
      foaf_givenName: L. E.
      foaf_name: Bergeron, L. E.
      foaf_surname: Bergeron
  - foaf_Person:
      foaf_givenName: J.
      foaf_name: Wang, J.
      foaf_surname: Wang
  - foaf_Person:
      foaf_givenName: H. C.
      foaf_name: Ferguson, H. C.
      foaf_surname: Ferguson
  - foaf_Person:
      foaf_givenName: C.
      foaf_name: Gronwall, C.
      foaf_surname: Gronwall
  - foaf_Person:
      foaf_givenName: A.
      foaf_name: Koekemoer, A.
      foaf_surname: Koekemoer
  - foaf_Person:
      foaf_givenName: M.
      foaf_name: Kuemmel, M.
      foaf_surname: Kuemmel
  - foaf_Person:
      foaf_givenName: L. A.
      foaf_name: Moustakas, L. A.
      foaf_surname: Moustakas
  - foaf_Person:
      foaf_givenName: N.
      foaf_name: Panagia, N.
      foaf_surname: Panagia
  - foaf_Person:
      foaf_givenName: A.
      foaf_name: Pasquali, A.
      foaf_surname: Pasquali
  - foaf_Person:
      foaf_givenName: M.
      foaf_name: Stiavelli, M.
      foaf_surname: Stiavelli
  - foaf_Person:
      foaf_givenName: J.
      foaf_name: Walsh, J.
      foaf_surname: Walsh
  - foaf_Person:
      foaf_givenName: R. A.
      foaf_name: Windhorst, R. A.
      foaf_surname: Windhorst
  - foaf_Person:
      foaf_givenName: S.
      foaf_name: di Serego Alighieri, S.
      foaf_surname: di Serego Alighieri
  bibo_doi: 10.1086/430047
  bibo_issue: '2'
  bibo_volume: 626
  dct_date: 2005^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/0004-637X
  - http://id.crossref.org/issn/1538-4357
  dct_language: eng
  dct_publisher: American Astronomical Society@
  dct_title: An overdensity of galaxies at z= 5.9 ± 0.2 in the Hubble Ultra Deep Field
    confirmed using the ACS grism@
...