source boundary
frontier-owneddeclared
A source record is provenance. It supports a finding only through evidence atoms, extraction spans, and reviewed finding bundles.
frontiers / frontier
Source record
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frontier-ownedA source record is provenance. It supports a finding only through evidence atoms, extraction spans, and reviewed finding bundles.
finding bindings
record contextFindings bound to this source through source ids, evidence atoms, provenance, or reviewed source-record slots.
evidence atoms
materializedEvidence atoms pin exact spans, measurements, selectors, or curation assertions to the source.
review context
inspectable1 reviewable changes and 0 evaluations are attached through this source or its findings.
Locator and citation
external sourcelocator
title:Baryon acoustic oscillations cosmological standard ruler physics
imported
2026-05-29T02:16:29.948417+00:00
extraction mode
manual_curation
authors
reviewer:will-blair
Caveats
No source-specific caveats are recorded.
Baryon acoustic oscillations (BAO) detected at low redshift (z ~ 0.1–0.7) preserve the imprint of the sound horizon scale set at recombination, providing a model-independent standard ruler for measuring expansion history.
events
vev_f7ee53c2f322d566finding.assertedManual finding added to frontier state
reviewer:will-blair · 2026-05-29
reviewable changes
vpr_a5273317e11dc335finding.addManual finding added to frontier state
applied · reviewer:will-blair · 2026-05-29
evaluations
No evaluation rows are attached.