Skip to content

canopusrecord engine body

field
frontiers
loop
body
docs

vela-science/vela

frontier

gw-transient-interpretation

findings

vf_08db92c9f7da2d93

resultsread-only vieweressays

Search Canopus

Jump to a section, signal, campaign, document, primitive, work path, frontier, record index, atlas, constellation, agent, capability, or full-state search.

frontiers / frontier

Gravitational-wave transient interpretation

CC-BY-4.0vfr_44f1a004166ef85e

id: vfr_44f1a004166ef85e
license: CC-BY-4.0
findings: 130
accepted core: 30
contested: 0

130

findings

79

links

130

sources

130

evidence

0

contested

0.80

avg conf

recordoverview state sources proofenginereviewbodygraph

Finding bundle

Delay-time distribution inferred from redshift-volume-corrected merger rates implies typical BBH mergers form within 10–100 Myr of ZAMS, but this conflicts with some isolated-binary models and is sensitive to unobserved high-redshift events; GW170817 host galaxy metallicity [Z/H] ~ -0.3 suggests older population (1–2 Gyr).

2inferred

id: vf_08db92c9f7da2d93
frontier: Gravitational-wave transient interpretation
version: 1
confidence: 0.76

record state

frontier-owned

Review status

This finding is part of accepted frontier state. Review events, reviewable changes, and proof state explain how it can change.

unreviewed

finding statement

finding type

observational

No entity list is declared.

evidence

source-bound

1 atoms

theoretical · manual state transition

proof impact

packet context

1 events

1 reviewable changes and 0 evaluation records are attached to this finding id.

Evidence and conditions

method

manual state transition

evidence type

theoretical

conditions

species_unverified
species_verified
text: Merger timescale t_merge ∈ [10 Myr, 10 Gyr]; metallicity-dependent binary survival fraction

Provenance

source title

Bavera et al. 2021 (DTD from GWTC-2); Thorne 1974 (NS recycling)

doi

10.1051/0004-6361/202038594

authors

reviewer:will-blair

Source records

1

source record

Bavera et al. 2021 (DTD from GWTC-2); Thorne 1974 (NS recycling)

vs_809288a581e7cc11

doi:10.1051/0004-6361/202038594 · 10.1051/0004-6361/202038594

2021manual_curation

inspect source →

Evidence atoms

1

vea_8b1441bc6de5cb1dtheoretical · unknown
Delay-time distribution inferred from redshift-volume-corrected merger rates implies typical BBH mergers form within 10–100 Myr of ZAMS, but this conflicts with some isolated-binary models and is sensitive to unobserved high-redshift events; GW170817 host galaxy metallicity [Z/H] ~ -0.3 suggests older population (1–2 Gyr).
vs_809288a581e7cc11 · manual_curation

Typed links

2

outgoing

No outgoing links.

incoming

Bayesian population inference of GW source properties is sensitive to the chosen spin prior (uniform in magnitude vs. physical formation-channel-dependent priors); uniform priors yield χ ~ 0.5, while formation-theory priors predict χ > 0.7 for field BBHs.
contradicts · vf_73ce6d568cfb41ca
Post-merger black hole spin inferred from quasinormal ringing (χ_final ~ 0.6–0.7) can disagree with spin estimated from in-band precession; ringdown analyses assume quasinormal mode dominance, but low-frequency merger dynamics and mass ejection contribute to signal, creating bias in ringdown mode extraction.
depends · vf_d996d333f3475b7f

Review, event, and evaluation records

2

events

vev_8c940fbfef0f93f5finding.asserted
Manual finding added to frontier state
reviewer:will-blair · 2026-05-29

reviewable changes

vpr_2e8d22f86b69b5eefinding.add
Manual finding added to frontier state
applied · reviewer:will-blair · 2026-05-29

evaluations

No evaluation record targets this finding id.