---
res:
  bibo_abstract:
  - The ability of primordial gas to cool in proto-galactic haloes exposed to Lyman-Werner
    (LW) radiation is critically dependent on the self-shielding of H_2. We perform
    radiative transfer calculations of LW line photons, post-processing outputs from
    three-dimensional adaptive mesh refinement (AMR) simulations of haloes with T_vir
    > 10^4 K at redshifts around z=10. We calculate the optically thick photodissociation
    rate numerically, including the effects of density, temperature, and velocity
    gradients in the gas, as well as line overlap and shielding of H_2 by HI, over
    a large number of sight-lines. In low-density regions (n<10^4 cm^-3) the dissociation
    rates exceed those obtained using most previous approximations by more than an
    order of magnitude; the correction is smaller at higher densities. We trace the
    origin of the deviations primarily to inaccuracies of (i) the most common fitting
    formula (Draine & Bertoldi 1996) for the suppression of the dissociation rate
    and (ii) estimates for the effective shielding column density from local properties
    of the gas. The combined effects of gas temperature and velocity gradients are
    comparatively less important, typically altering the spherically averaged rate
    only by a factor of less than two. We present a simple modification to the DB96
    fitting formula for the optically thick rate which improves agreement with our
    numerical results to within approx. 15 per cent, and can be adopted in future
    simulations. We find that estimates for the effective shielding column can be
    improved by using the local Sobolev length. Our correction to the H_2 self-shielding
    reduces the critical LW flux to suppress H_2-cooling in T_vir>10^4 K haloes by
    an order of magnitude; this increases the number of such haloes in which supermassive
    (approx. M=10^5 M_sun) black holes may have formed.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: J.
      foaf_name: Wolcott-Green, J.
      foaf_surname: Wolcott-Green
  - 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: G. L.
      foaf_name: Bryan, G. L.
      foaf_surname: Bryan
  bibo_doi: 10.1111/j.1365-2966.2011.19538.x
  bibo_issue: '2'
  bibo_volume: 418
  dct_date: 2011^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/0035-8711
  dct_language: eng
  dct_publisher: Oxford University Press@
  dct_title: 'Photodissociation of H2 in protogalaxies: Modelling self-shielding in
    three-dimensional simulations@'
...