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Cosmology

Hydrogen was not ionized abruptly

Nature volume 468, pages 772–773 (2010)Cite this article

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When and how the first stars and galaxies ionized the primordial hydrogen atoms that filled the early Universe is not known. Observations with a single radio antenna are opening a new window on the process. See Letter p.796

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Figure 1: The 21-centimetre cosmic hydrogen signal.

References

  1. Loeb, A. How Did the First Stars and Galaxies Form? (Princeton Univ. Press, 2010).

    Book  Google Scholar 

  2. Bowman, J. D. & Rogers, A. E. E. Nature 468, 796–798 (2010).

    Article  ADS  CAS  Google Scholar 

  3. Furlanetto, S. R., Oh, S. P. & Briggs, F. H. Phys. Rep. 433, 181–301 (2006).

    Article  ADS  CAS  Google Scholar 

  4. Shaver, P. A., Windhorst, R. A., Madau, P. & de Bruyn, A. G. Astron. Astrophys. 345, 380–390 (1999).

    ADS  CAS  Google Scholar 

  5. Becker, R. H. et al. Astron. J. 122, 2850–2857 (2001).

    Article  ADS  Google Scholar 

  6. Komatsu, E. et al. Astrophys. J. Suppl. Ser. 180, 330–376 (2009).

    Article  ADS  Google Scholar 

  7. Robertson, B. E., Ellis, R. S., Dunlop, J. S., McLure, R. J. & Stark, D. P. Nature 468, 49–55 (2010).

    Article  ADS  CAS  Google Scholar 

  8. Pritchard, J. R. & Loeb, A. Phys. Rev. D 82, 023006 (2010).

    Article  ADS  Google Scholar 

  9. Santos, M. G. et al. Astrophys. J. 689, 1–16 (2008).

    Article  ADS  CAS  Google Scholar 

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Authors and Affiliations

  1. Jonathan Pritchard and Abraham Loeb are in the Institute for Theory and Computation, Harvard University, Cambridge, Massachusetts 02138, USA. jpritchard@cfa.harvard.edu; aloeb@cfa.harvard.edu,

    Jonathan Pritchard & Abraham Loeb

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  1. Jonathan Pritchard
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  2. Abraham Loeb
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Pritchard, J., Loeb, A. Hydrogen was not ionized abruptly. Nature 468, 772–773 (2010). https://doi.org/10.1038/468772b

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