A universal 21 cm signature of growing massive black holes in the early Universe

@article{Sazonov2019AU2,
  title={A universal 21 cm signature of growing massive black holes in the early Universe},
  author={Sergey Sazonov and Ildar Khabibullin},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2019},
  volume={489},
  pages={1127-1138}
}
  • Sergey Sazonov, Ildar Khabibullin
  • Published 2019
  • Physics
  • Monthly Notices of the Royal Astronomical Society
  • There is a hope that looking into the early Universe with next-generation telescopes, one will be able to observe the early accretion growth of supermassive black holes (BHs) when their masses were $\sim 10^4$-$10^6 M_\odot$. According to the standard theory, the bulk of the gravitational potential energy released by radiatively efficient accretion of matter onto a BH in this mass range is expected to be emitted in the extreme UV-ultrasoft X-ray bands. We demonstrate that such a 'miniquasar' at… CONTINUE READING

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