---
res:
  bibo_abstract:
  - While low-luminosity galaxies dominate number counts at all redshifts, their contribution
    to cosmic reionization is poorly understood due to a lack of knowledge of their
    physical properties. We isolate a sample of 35 z ≈ 4–5 continuum-faint Lyman-α
    emitters from deep VLT/MUSE spectroscopy and directly measure their H α emission
    using stacked Spitzer/IRAC Ch. 1 photometry. Based on Hubble Space Telescope imaging,
    we determine that the average UV continuum magnitude is fainter than −16 (≈ 0.01
    L⋆), implying a median Lyman-α equivalent width of 259 Å. By combining the H α
    measurement with the UV magnitude, we determine the ionizing photon production
    efficiency, ξion, a first for such faint galaxies. The measurement of log10 (ξion
    [Hz erg−1]) = 26.28 (⁠+0.28−0.40⁠) is in excess of literature measurements of
    both continuum- and emission line-selected samples, implying a more efficient
    production of ionizing photons in these lower luminosity, Lyman-α-selected systems.
    We conclude that this elevated efficiency can be explained by stellar populations
    with metallicities between 4 × 10−4 and 0.008, with light-weighted ages less than
    3 Myr.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Michael V
      foaf_name: Maseda, Michael V
      foaf_surname: Maseda
  - foaf_Person:
      foaf_givenName: Roland
      foaf_name: Bacon, Roland
      foaf_surname: Bacon
  - foaf_Person:
      foaf_givenName: Daniel
      foaf_name: Lam, Daniel
      foaf_surname: Lam
  - foaf_Person:
      foaf_givenName: Jorryt J
      foaf_name: Matthee, Jorryt J
      foaf_surname: Matthee
      foaf_workInfoHomepage: http://www.librecat.org/personId=7439a258-f3c0-11ec-9501-9df22fe06720
    orcid: 0000-0003-2871-127X
  - foaf_Person:
      foaf_givenName: Jarle
      foaf_name: Brinchmann, Jarle
      foaf_surname: Brinchmann
  - foaf_Person:
      foaf_givenName: Joop
      foaf_name: Schaye, Joop
      foaf_surname: Schaye
  - foaf_Person:
      foaf_givenName: Ivo
      foaf_name: Labbe, Ivo
      foaf_surname: Labbe
  - foaf_Person:
      foaf_givenName: Kasper B
      foaf_name: Schmidt, Kasper B
      foaf_surname: Schmidt
  - foaf_Person:
      foaf_givenName: Leindert
      foaf_name: Boogaard, Leindert
      foaf_surname: Boogaard
  - foaf_Person:
      foaf_givenName: Rychard
      foaf_name: Bouwens, Rychard
      foaf_surname: Bouwens
  - foaf_Person:
      foaf_givenName: Sebastiano
      foaf_name: Cantalupo, Sebastiano
      foaf_surname: Cantalupo
  - foaf_Person:
      foaf_givenName: Marijn
      foaf_name: Franx, Marijn
      foaf_surname: Franx
  - foaf_Person:
      foaf_givenName: Takuya
      foaf_name: Hashimoto, Takuya
      foaf_surname: Hashimoto
  - foaf_Person:
      foaf_givenName: Hanae
      foaf_name: Inami, Hanae
      foaf_surname: Inami
  - foaf_Person:
      foaf_givenName: Haruka
      foaf_name: Kusakabe, Haruka
      foaf_surname: Kusakabe
  - foaf_Person:
      foaf_givenName: Guillaume
      foaf_name: Mahler, Guillaume
      foaf_surname: Mahler
  - foaf_Person:
      foaf_givenName: Themiya
      foaf_name: Nanayakkara, Themiya
      foaf_surname: Nanayakkara
  - foaf_Person:
      foaf_givenName: Johan
      foaf_name: Richard, Johan
      foaf_surname: Richard
  - foaf_Person:
      foaf_givenName: Lutz
      foaf_name: Wisotzki, Lutz
      foaf_surname: Wisotzki
  bibo_doi: 10.1093/mnras/staa622
  bibo_issue: '4'
  bibo_volume: 493
  dct_date: 2020^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/0035-8711
  - http://id.crossref.org/issn/1365-2966
  dct_language: eng
  dct_publisher: Oxford University Press@
  dct_subject:
  - Space and Planetary Science
  - Astronomy and Astrophysics
  - 'Galaxies: evolution'
  - 'Galaxies: high-redshift'
  - 'Galaxies: ISM'
  dct_title: Elevated ionizing photon production efficiency in faint high-equivalent-width
    Lyman-α emitters@
...