---
res:
  bibo_abstract:
  - It has been proposed that primordial gas in early dark matter halos, with virial
    temperatures above 10^4 K, can avoid fragmentation and undergo rapid collapse,
    possibly resulting in a supermassive black hole (SMBH). This requires the gas
    to avoid cooling and to remain at temperatures near T=10^4 K. We show that this
    condition can be satisfied in the presence of a sufficiently strong primordial
    magnetic field, which heats the collapsing gas via ambipolar diffusion. If the
    field has a strength above B = 3.6 (comoving) nG, the collapsing gas is kept warm
    (T=10^4K) until it reaches the critical density n_crit=10^3 cm^{-3} at which the
    roto-vibrational states of H_2 approach local thermodynamic equilibrium. H_2-cooling
    then remains inefficient, and the gas temperature stays near 10^4K, even as it
    continues to collapse to higher densities. The critical magnetic field strength
    required to permanently suppress H_2-cooling is somewhat higher than upper limit
    of approx. 2 nG from the cosmic microwave background (CMB). However, it can be
    realized in the rare (2-3)-sigma regions of the spatially fluctuating B-field;
    these regions contain a sufficient number of halos to account for the z=6 quasar
    BHs.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Shiv
      foaf_name: Sethi, Shiv
      foaf_surname: Sethi
  - 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: Kanhaiya
      foaf_name: Pandey, Kanhaiya
      foaf_surname: Pandey
  bibo_doi: 10.1088/0004-637x/721/1/615
  bibo_issue: '1'
  bibo_volume: 721
  dct_date: 2010^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/0004-637X
  - http://id.crossref.org/issn/1538-4357
  dct_language: eng
  dct_publisher: American Astronomical Society@
  dct_title: Supermassive black hole formation at high redshifts through a primordial
    magnetic field@
...