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

Eli Visbal (), Rennan Barkana (), Anastasia Fialkov, Dmitriy Tseliakhovich and Christopher M. Hirata
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Eli Visbal: Jefferson Laboratory of Physics, Harvard University
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

Nature, 2012, vol. 487, issue 7405, 70-73

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.

Date: 2012
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DOI: 10.1038/nature11177

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