Peering into the dark (ages) with low-frequency space interferometers: Using the 21-cm signal of neutral hydrogen from the infant universe to probe fundamental (Astro)physics.
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Authors
Barkana, Rennan
Bentum, Mark
Bernardi, Gianni
Boonstra, Albert-Jan
Bowman, Judd
Burns, Jack
Chen, Xuelei
Datta, Abhirup
Falcke, Heino
Fialkov, Anastasia
Gehlot, Bharat
Gurvits, Leonid
Jelić, Vibor
Klein-Wolt, Marc
Lazio, Joseph
Meerburg, Daan
Mellema, Garrelt
Mertens, Florent
Mesinger, Andrei
Offringa, André
Pritchard, Jonathan
Semelin, Benoit
Subrahmanyan, Ravi
Silk, Joseph
Trott, Cathryn
Vedantham, Harish
Verde, Licia
Zaroubi, Saleem
Zarka, Philippe
Publication Date
2021-09-03Journal Title
Experimental astronomy
ISSN
0922-6435
Pages
1-36
Language
eng
Type
Article
This Version
VoR
Metadata
Show full item recordCitation
Koopmans, L. V. E., Barkana, R., Bentum, M., Bernardi, G., Boonstra, A., Bowman, J., Burns, J., et al. (2021). Peering into the dark (ages) with low-frequency space interferometers: Using the 21-cm signal of neutral hydrogen from the infant universe to probe fundamental (Astro)physics.. Experimental astronomy, 1-36. https://doi.org/10.1007/s10686-021-09743-7
Abstract
The Dark Ages and Cosmic Dawn are largely unexplored windows on the infant Universe (z ~ 200-10). Observations of the redshifted 21-cm line of neutral hydrogen can provide valuable new insight into fundamental physics and astrophysics during these eras that no other probe can provide, and drives the design of many future ground-based instruments such as the Square Kilometre Array (SKA) and the Hydrogen Epoch of Reionization Array (HERA). We review progress in the field of high-redshift 21-cm Cosmology, in particular focussing on what questions can be addressed by probing the Dark Ages at z > 30. We conclude that only a space- or lunar-based radio telescope, shielded from the Earth's radio-frequency interference (RFI) signals and its ionosphere, enable the 21-cm signal from the Dark Ages to be detected. We suggest a generic mission design concept, CoDEX, that will enable this in the coming decades.
Keywords
Dark Ages, Epoch Of Reionization, 21-Cm Cosmology, Cosmic Dawn, Space Or Lunar-Based Radio Telescopes
Sponsorship
European Research Council (884760)
Identifiers
PMC8416573, 34511720
External DOI: https://doi.org/10.1007/s10686-021-09743-7
This record's URL: https://www.repository.cam.ac.uk/handle/1810/329534
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