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The signature of the first stars in atomic hydrogen at redshift 20

Author

Listed:
  • Eli Visbal

    (Jefferson Laboratory of Physics, Harvard University
    Institute for Theory and Computation, Harvard University, 60 Garden Street, Cambridge, Massachusetts 02138, USA)

  • Rennan Barkana

    (Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel)

  • Anastasia Fialkov

    (Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel)

  • Dmitriy Tseliakhovich

    (California Institute of Technology, Mail Code 350-17)

  • Christopher M. Hirata

    (California Institute of Technology, Mail Code 249-17)

Abstract

A simulation of the distribution of the first stars at a cosmic age of about 180 million years reveals that the 21-cm atomic hydrogen signature of these stars is an enhanced (ten millikelvin) fluctuation signal on scales of a few hundred million light-years.

Suggested Citation

  • Eli Visbal & Rennan Barkana & Anastasia Fialkov & Dmitriy Tseliakhovich & Christopher M. Hirata, 2012. "The signature of the first stars in atomic hydrogen at redshift 20," Nature, Nature, vol. 487(7405), pages 70-73, July.
    • Handle: RePEc:nat:nature:v:487:y:2012:i:7405:d:10.1038_nature11177
    DOI: 10.1038/nature11177
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