First Constraints on Helium <sup>+</sup>He<sup>3</sup> Evolution in z=3–4 Using the 8.67GHz Hyperfine Transition
We present the first constraints on the cross-correlation power spectrum of the He II (+He3) signal strength using the redshifted 8.67 GHz hyperfine transition between z = 2.9 and 4.1 and with interferometric data obtained from the public archive of the Australia Telescope Compact Array (ATCA). 210...
| Main Authors: | , |
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| Format: | Journal Article |
| Published: |
2024
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| Online Access: | http://purl.org/au-research/grants/arc/FT180100321 http://hdl.handle.net/20.500.11937/96294 |