---
res:
  bibo_abstract:
  - We explore deep rest-frame UV to FIR data in the COSMOS field to measure the individual
    spectral energy distributions (SED) of the ∼4000 SC4K (Sobral et al.) Lyman α
    (Ly α) emitters (LAEs) at z ∼ 2–6. We find typical stellar masses of 109.3 ± 0.6 M⊙
    and star formation rates (SFR) of SFRSED=4.4+10.5−2.4 M⊙ yr−1 and SFRLyα=5.9+6.3−2.6 M⊙ yr−1,
    combined with very blue UV slopes of β=−2.1+0.5−0.4⁠, but with significant variations
    within the population. MUV and β are correlated in a similar way to UV-selected
    sources, but LAEs are consistently bluer. This suggests that LAEs are the youngest
    and/or most dust-poor subset of the UV-selected population. We also study the
    Ly α rest-frame equivalent width (EW0) and find 45 ‘extreme’ LAEs with EW0 > 240 Å
    (3σ), implying a low number density of (7 ± 1) × 10−7 Mpc−3. Overall, we measure
    little to no evolution of the Ly α EW0 and scale length parameter (w0), which
    are consistently high (EW0=140+280−70 Å, w0=129+11−11 Å) from z ∼ 6 to z ∼ 2 and
    below. However, w0 is anticorrelated with MUV and stellar mass. Our results imply
    that sources selected as LAEs have a high Ly α escape fraction (fesc,Ly α) irrespective
    of cosmic time, but fesc,Ly α is still higher for UV-fainter and lower mass LAEs.
    The least massive LAEs (<109.5 M⊙) are typically located above the star formation
    ‘main sequence’ (MS), but the offset from the MS decreases towards z ∼ 6 and towards
    1010 M⊙. Our results imply a lack of evolution in the properties of LAEs across
    time and reveals the increasing overlap in properties of LAEs and UV-continuum
    selected galaxies as typical star-forming galaxies at high redshift effectively
    become LAEs.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: S
      foaf_name: Santos, S
      foaf_surname: Santos
  - foaf_Person:
      foaf_givenName: D
      foaf_name: Sobral, D
      foaf_surname: Sobral
  - 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: J
      foaf_name: Calhau, J
      foaf_surname: Calhau
  - foaf_Person:
      foaf_givenName: E
      foaf_name: da Cunha, E
      foaf_surname: da Cunha
  - foaf_Person:
      foaf_givenName: B
      foaf_name: Ribeiro, B
      foaf_surname: Ribeiro
  - foaf_Person:
      foaf_givenName: A
      foaf_name: Paulino-Afonso, A
      foaf_surname: Paulino-Afonso
  - foaf_Person:
      foaf_givenName: P
      foaf_name: Arrabal Haro, P
      foaf_surname: Arrabal Haro
  - foaf_Person:
      foaf_givenName: J
      foaf_name: Butterworth, J
      foaf_surname: Butterworth
  bibo_doi: 10.1093/mnras/staa093
  bibo_issue: '1'
  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: formation'
  - 'galaxies: high-redshift'
  - 'galaxies: star formation'
  dct_title: The evolution of rest-frame UV properties, Ly α EWs, and the SFR–stellar
    mass relation at z ∼ 2–6 for SC4K LAEs@
...