Probing Helium Reionization Through the cubed He+ Hyperfine Transition Line

arXiv:2510.14059 · astro-ph.CO, astro-ph.GA · Submitted 2025-10-15 · Read on arXiv

astro-ph.CO, astro-ph.GA

Submitted: 2025-10-15

Updated: 2026-09-16

Comments: 8 pages, 7 figures, Version accepted for publication in MNRAS Main Journal

DOI: 10.1093/mnras/stag1709

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• AGN — 34× in this paper · explained in 1 episode
• Abundance — 4× in this paper · explained in 1 episode
• Anti-correlation — 3× in this paper · explained in 3 episodes
• Epoch of Reionization — 2× in this paper
• Trace — 1× in this paper · explained in 2 episodes

Sources

• Exploring the effect of different cosmologies on the Epoch of Reionization 21-cm signal with POLAR
• The hyperfine transition of 3He+ as a probe of the intergalactic medium
• Influence of the Spectral Energy Distribution of Reionization-Era Sources on the Lyman-$\alpha$ Forest
• Detecting galaxy-21-cm cross-correlation during reionization

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