Cosmological 21-cm line observations to test scenarios of super-Eddington accretion on to black holes being seeds of high-redshifted supermassive black holes

  title={Cosmological 21-cm line observations to test scenarios of super-Eddington accretion on to black holes being seeds of high-redshifted supermassive black holes},
  author={Kazunori Kohri and Toyokazu Sekiguchi and Sai Wang},
  journal={Physical Review D},
In this paper, we study scenarios of the super-Eddington accretion onto black holes at high redshifts z > 10, which are expected to be seeds to evolve to supermassive black holes until redshift z ∼ 7. For an initial mass, M BH , ini (cid:46) 2 × 10 3 M (cid:12) of a seed BH, we definitely need the super-Eddington accretion, which can be applicable to both astrophysical and primordial origins. Such an accretion disk inevitably emitted high-energy photons which had heated the cosmological plasma… 
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