Reionization of an Inhomogeneous Universe

M. Umemura; T. Nakamoto; H. Susa

Reionization of an Inhomogeneous Universe

Astrophysics 2007-05-23 v1

Authors: M. Umemura , T. Nakamoto , H. Susa

Abstract

Full radiative transfer in 3D space has been solved to pursue the reionization history in an inhomogeneous universe. It has been shown that the reionization of an inhomogeneous universe is not a prompt event, but a fairly slow process. Also, QSO absorption line systems are simulated with using the results of radiative transfer calculations. Ly $\alpha$ continuum depression implies that the metagalactic UV intensity decreases rapidly with $z$ at $z>5$ , and the reionization must have taken place between $z=6$ and 10. Finally, it is stressed that H $\alpha$ forest is a more powerful tool to probe the reionization history and the density fluctuations in the universe at $z>5$ .

Keywords

reionization radiative transfer Lyα continuum QSO absorption Hα forest

Cite

@article{arxiv.astro-ph/0108176,
  title  = {Reionization of an Inhomogeneous Universe},
  author = {M. Umemura and T. Nakamoto and H. Susa},
  journal= {arXiv preprint arXiv:astro-ph/0108176},
  year   = {2007}
}

Comments

Contribution Paper in "Birth and Evolution of the Universe", RESCEU International Symp. Ser. No.4, Eds. K. Sato and M. Kawasaki (Universal Academy Press: Tokyo)

Reionization of an Inhomogeneous Universe

Abstract

Keywords

Cite

Comments

Related papers