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
back to sourcessource boundary
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
locator
title:Gaia Collaboration EDR3; Layden et al. parallax work; M31 RR Lyrae surveys
imported
2026-05-29T02:16:30.146356+00:00
extraction mode
manual_curation
authors
reviewer:will-blair
Caveats
No source-specific caveats are recorded.
The RR Lyrae absolute magnitude calibration (M_V ≈ 0.6 mag) has been refined via Gaia parallaxes to ±0.03 mag precision, making RR Lyrae competitive with TRGB in nearby galaxies where RR Lyrae are abundant (e.g., M31).
events
vev_bd1d3771bbc443a2finding.assertedManual finding added to frontier state
reviewer:will-blair · 2026-05-29
vev_2d7f50117763320bfinding.dependency_invalidatedUpstream finding vf_92a4abc490ebaf6c retracted; cascade depth 3
reviewer:will-blair · 2026-05-29
reviewable changes
vpr_a4b90871b0a70306finding.addManual finding added to frontier state
applied · reviewer:will-blair · 2026-05-29
evaluations
No evaluation rows are attached.