Pith Number

pith:K6QKCZA5

pith:2026:K6QKCZA5GKFH7L7CUS3IQRGYAB

not attested not anchored not stored refs resolved

Assessing the imprint of eccentricity in GW signatures using two independent waveform models

Natalie Malagon, Richard O'Shaughnessy

Two independent waveform models disfavor orbital eccentricity in most of 162 analyzed gravitational wave events but identify potential signatures in three specific cases.

arxiv:2605.12818 v1 · 2026-05-12 · astro-ph.HE

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\usepackage{pith}
\pithnumber{K6QKCZA5GKFH7L7CUS3IQRGYAB}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

Using the RIFT parameter inference engine, we employ two independently implemented waveform models (SEOBNRv5EHM and TEOBResumS-Dali) which account for orbital eccentricity and the effects of aligned compact object spins. Using these two waveforms, we find consistent conclusions that disfavor the eccentric hypothesis. ... potential evidence for eccentricity in three events: GW200129, GW231001, and GW231123.

C2weakest assumption

The two waveform models (SEOBNRv5EHM and TEOBResumS-Dali) accurately capture the true gravitational wave morphology for eccentric systems with aligned spins, and that parameter inference can reliably separate eccentricity from nonstationary noise artifacts.

C3one line summary

Dual-model analysis of 162 GW sources disfavors eccentricity for most events but finds potential evidence in GW200129, GW231001, and GW231123.

References

72 extracted · 72 resolved · 19 Pith anchors

[1] Advanced LIGO 2015 · arXiv:1411.4547

[2] Advanced Virgo: a 2nd generation interferometric gravitational wave detector 2015 · arXiv:1408.3978

[3] Akutsuet al.(KAGRA), Overview of KAGRA: Detector design and construction history, PTEP2021, 05A101 (2021), arXiv:2005.05574 [physics.ins-det] 2021

[4] GWTC-2: Compact Binary Coalescences Observed by LIGO and Virgo During the First Half of the Third Observing Run 2021 · arXiv:2010.14527

[5] R. Abbott, T. D. Abbott, F. Acernese, K. Ackley, C. Adams, N. Adhikari, R. X. Adhikari, V. B. Adya, C. Affeldt, D. Agarwal, and et al., Phys. Rev. D109, 022001 (2024) 2024

Cited by

1 paper in Pith

A universal framework to identify eccentric binary mergers: GW200105 case study

Receipt and verification

First computed	2026-05-18T03:09:12.271769Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57a0a1641d328a7fafe2a4b68844d80053cc318385c5853d8cd5287848c823ba

Aliases

arxiv: 2605.12818 · arxiv_version: 2605.12818v1 · doi: 10.48550/arxiv.2605.12818 · pith_short_12: K6QKCZA5GKFH · pith_short_16: K6QKCZA5GKFH7L7C · pith_short_8: K6QKCZA5

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/K6QKCZA5GKFH7L7CUS3IQRGYAB \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 57a0a1641d328a7fafe2a4b68844d80053cc318385c5853d8cd5287848c823ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f766e3b08d7dbcaf915ae5c2c62b55b2df01671311c7b5a49453dce4fcea1ac4",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2026-05-12T23:23:08Z",
    "title_canon_sha256": "6724d0c916f8005d5dd8336c5ecce5ff04f90fd75f6296dbadccef98560323be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.12818",
    "kind": "arxiv",
    "version": 1
  }
}