---
res:
  bibo_abstract:
  - The rapid decline in the number of strong Lyman Alpha (Lya) emitting galaxies
    at z > 6 provides evidence for neutral hydrogen in the IGM, but is difficult to
    explain with plausible models for reionization. We demonstrate that the observed
    reduction in Lya flux from galaxies at z > 6 can be explained by evolution in
    the escape fraction of ionizing photons, f_esc. We find that the median observed
    drop in the fraction of galaxies showing strong Lya emission, as well as the observed
    evolution of the Lya luminosity function both follow from a small increase in
    f_esc of Delta f_esc ~ 0.1 from f_esc ~ 0.6 at z ~ 6. This high escape fraction
    may be at odds with current constraints on the ionising photon escape fraction,
    which favor smaller values of f_esc < 20%. However, models that invoke a redshift
    evolution of f_ esc that is consistent with these constraints can suppress the
    z~7 Lya flux to the observed level, if they also include a small evolution in
    global neutral fraction of Delta x_HI ~ 0.2. Thus, an evolving escape fraction
    of ionising photons can be a plausible part of the explanation for evolution in
    the Lya emission of high redshift galaxies. More generally, our analysis also
    shows that the drop in the Lya fraction is quantitatively consistent with the
    observed evolution in the Lya luminosity functions of Lya Emitters.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Mark
      foaf_name: Dijkstra, Mark
      foaf_surname: Dijkstra
  - foaf_Person:
      foaf_givenName: Stuart
      foaf_name: Wyithe, Stuart
      foaf_surname: Wyithe
  - 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: Andrei
      foaf_name: Mesinger, Andrei
      foaf_surname: Mesinger
  - foaf_Person:
      foaf_givenName: Laura
      foaf_name: Pentericci, Laura
      foaf_surname: Pentericci
  bibo_doi: 10.1093/mnras/stu531
  bibo_issue: '4'
  bibo_volume: 440
  dct_date: 2014^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/1365-2966
  - http://id.crossref.org/issn/0035-8711
  dct_language: eng
  dct_publisher: Oxford University Press@
  dct_title: Evolution in the escape fraction of ionizing photons and the decline
    in strong Lyα emission from z > 6 galaxies@
...