evidence boundary
unknowntheoretical
An evidence atom is an inspectable support unit. It is not a finding by itself; it supports or challenges a finding through review.
frontiers / frontier
Evidence atom
back to sourcesevidence boundary
unknownAn evidence atom is an inspectable support unit. It is not a finding by itself; it supports or challenges a finding through review.
finding binding
boundThe Tip of the Red Giant Branch (TRGB) distance indicator relies on the observation that all metal-poor globular clusters reach a sharp luminosity cutoff at nearly identical absolute magnitude (M_V ≈ −4.0 ± 0.1) when they transition from the red giant branch to the asymptotic giant branch, providing a standardizable 'cosmic rung' for nearby galaxies.
inspect finding →
source binding
source-boundvs_2fe147f360243b0e
inspect source →
review context
unverified1 reviewable changes and 0 evaluation records target this atom or its bound objects.
Evidence statement
The Tip of the Red Giant Branch (TRGB) distance indicator relies on the observation that all metal-poor globular clusters reach a sharp luminosity cutoff at nearly identical absolute magnitude (M_V ≈ −4.0 ± 0.1) when they transition from the red giant branch to the asymptotic giant branch, providing a standardizable 'cosmic rung' for nearby galaxies.
extraction method
manual_curation
support relation
unknown
condition refs
vcnd_b595ed9d74c2b4d5
Caveats
events
vev_d05f08f7b1f0867efinding.assertedManual finding added to frontier state
reviewer:will-blair · 2026-05-29
vev_32790c1b837b7a3bfinding.dependency_invalidatedUpstream finding vf_92a4abc490ebaf6c retracted; cascade depth 1
reviewer:will-blair · 2026-05-29
reviewable changes
vpr_20f3448497ce7471finding.addManual finding added to frontier state
applied · reviewer:will-blair · 2026-05-29
evaluations
No evaluation rows are attached.