---
res:
  bibo_abstract:
  - The first generation of stars produces a background of Lyman–Werner (LW) radiation
    which can photodissociate molecular hydrogen, increasing the mass of dark matter
    haloes required to host star formation. Previous studies have determined the critical
    mass required for efficient molecular cooling with a constant LW background. However,
    the true background is expected to increase rapidly at early times. Neglecting
    this evolution could underestimate star formation in small haloes that may have
    started to cool in the past when the LW intensity was much lower. Background evolution
    is a large source of uncertainty in pre-reionization predictions of the cosmological
    21cm signal, which can be observed with future radio telescopes. To address this,
    we perform zero-dimensional one-zone calculations that follow the density, chemical
    abundances, and temperature of gas in the central regions of dark matter haloes,
    including hierarchical growth and an evolving LW background. We begin by studying
    the physics of haloes subjected to a background that increases exponentially with
    redshift. We find that when the intensity increases more slowly than JLW(z)∝10−z/5,
    cooling in the past is a relatively small effect. We then self-consistently compute
    the cosmological LW background over z = 15–50 and find that cooling in the past
    due to an evolving background has a modest impact. Finally, we compare these results
    to three-dimensional hydrodynamical cosmological simulations with varying LW histories.
    While only a small number of haloes were simulated, the results are consistent
    with our one-zone calculations.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Eli
      foaf_name: Visbal, Eli
      foaf_surname: Visbal
  - 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: Bryan
      foaf_name: Terrazas, Bryan
      foaf_surname: Terrazas
  - foaf_Person:
      foaf_givenName: Greg L.
      foaf_name: Bryan, Greg L.
      foaf_surname: Bryan
  - foaf_Person:
      foaf_givenName: Rennan
      foaf_name: Barkana, Rennan
      foaf_surname: Barkana
  bibo_doi: 10.1093/mnras/stu1710
  bibo_issue: '1'
  bibo_volume: 445
  dct_date: 2014^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_title: High-redshift star formation in a time-dependent Lyman–Werner background@
...