Overview of 21cm Experiments at high redshift with SKAO
EoR/CD Science Working Group, Gianni Bernardi, Daniela Breitman, Abhirup Datta, Anastasia Fialkov, Leon V. E. Koopmans, Adrian Liu, Yi Mao, Garrelt Mellema, Florent Mertens, Andrei Mesinger, Jonathan Pritchard, Aurel Schneider, Cathryn M. Trott, Yidong Xu, Anshuman Acharya, Satadru Bag, Rennan Barkana, Nichole Barry, Oliver Basquette, Michele Bianco, Stefanie A. Brackenhoff, Carlo Burigana, Isabella P. Carucci, Emilio Ceccotti, Arnab Chakraborty, Samir Choudhuri, Tirthankar Roy Choudhury, Benedetta Ciardi, Hector Afonso G. Cruz, Saswata Dasgupta, Kanan K. Datta, Pratika Dayal, Eloy de Lera Acedo, Khandakar Md Asif Elahi, Ivelin Georgiev, Sukhdeep Singh Gill, Sambit K. Giri, Adelie Gorce, Quan Guo, Caroline Heneka, Ian Hothi, Anne Hutter, Piyanat Kittiwisit, Bohua Li, Yashrajsinh Mahida, Barun Maity, Suman Majumdar, Avery Meiksin, Romain Meriot, Arnab Mishra, Shikhar Mittal, Rajesh Mondal, Lauro Moscardini, Julian Munoz, Satyapan Munshi, Pravin Kumar Natwariya, Leon Noble, Oscar Sage David O'Hara, Pierre Ocvirk, Samit Kumar Pal, Yannic Pietschke, Steven G. Piyanat, Rashmi Sagar, Rasha M. Samir, Mario G. Santos, Benoit Semelin, Rahul Shah, Yali Shao, Abinash Kumar Shaw, Hayato Shimabukuro, Peter H. Sims, Tomas Soltinsky, Guochao Sun, Anshuman Tripathi, Tiziana Trombetti, Ceren Ulusoy, Maio Umberto, Jochen Weller, Sarod Yatawatta, Shintaro Yoshiura, Bin Yue, Saleem Zaroubi, Qian Zheng
astro-ph.CO, astro-ph.IM
Submitted: 2026-06-24
Comments: Published in Advancing Astrophysics with the SKAII (AASKAII), 2026 (arXiv:2606.20366). Report-no:AASKAII/Trott01
Code: https://github.com/rasg-affiliates/21cmSense
License: http://creativecommons.org/licenses/by-nc-sa/4.0/
The gist: We provide an overview of the eight SKAO Science Book chapters that motivate the Epoch of Reionisation and Cosmic Dawn experiments with SKA-Low.
Terminology
Abstract
We provide an overview of the eight SKAO Science Book chapters that motivate the Epoch of Reionisation and Cosmic Dawn experiments with SKA-Low. We describe the individual SKA-Low experiments and expected sensitivity - power spectrum, tomography, 21-cm forest, cross-correlations, building on the broad observational plan laid out in the 2015 SKA Science Book. Finally, we outline features of the telescope that will be critical for the success of EoR/CD science, e.g., beam apodization, substations, and multi-beaming.
Sources
- Probing Reionization-Era Galaxies with JWST UV Luminosity Functions and Large-Scale Clustering
- Efficient simulation of discrete galaxy populations and associated radiation fields during the first billion years
- Exploiting synergies between JWST and cosmic 21-cm observations to uncover star formation in the early Universe
- The THESAN project: Lyman-alpha emitters as probes of ionized bubble sizes
- Percent-level timing of reionization: self-consistent, implicit-likelihood inference from XQR-30+ Ly$\alpha$ forest data
- Improved Constraints on the 21 cm EoR Power Spectrum and the X-Ray Heating of the IGM with HERA Phase I Observations
- Improved limits on the 21cm signal at z=6.5-7.0 with the MWA using Gaussian information
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