research
Eight Galaxies Kept Helium but Hid Their Metals
A search of 109,545 emitters found eight tentative Population III-like candidates near redshift two.
Summary
A search of 109,545 emitters found eight tentative Population III-like candidates near redshift two.
Researchers searched 109,545 high-confidence HETDEX Lyman-alpha emitters for strong narrow helium emission without detected ultraviolet metal lines. Eight candidates produced a stacked helium equivalent width of 28.7 ± 6.7 angstroms and no significant nitrogen, carbon or oxygen features at the reported limits. The combination is difficult to reproduce with several enriched-star, active-galaxy and shock alternatives. The authors call them very metal-poor or Population III-like candidates; deeper individual ultraviolet and optical spectra are required for confirmation.
Why it matters
A search of 109,545 emitters found eight tentative Population III-like candidates near redshift two.
Limits and context
No additional limitation was separately recorded.
Key claims
A search of 109,545 emitters found eight tentative Population III-like candidates near redshift two.
Evidence: source-2026-09-16-020
Sources
- arXiv preprint 2609.16134arXiv · primary research
Corrections
No corrections have been recorded for this story.