{"total":11,"items":[{"citing_arxiv_id":"2606.30594","ref_index":19,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Efficient Eccentric Effective-One-Body Dynamics via Near-Identity Averaging Transformations","primary_cat":"gr-qc","submitted_at":"2026-06-29T17:35:10+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Near-identity averaging transformations applied to osculating orbital elements reduce the computational cost of eccentric EOB inspirals by up to two orders of magnitude while maintaining accuracy for moderate to large eccentricities at NNLO.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2605.28716","ref_index":75,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Eccentric and unbound compact binaries in the LIGO-Virgo-KAGRA catalog: parameter estimation and waveform systematics with SEOBNRv6EHM","primary_cat":"gr-qc","submitted_at":"2026-05-27T16:38:48+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"SEOBNRv6EHM reduces parameter biases for eccentric binaries versus prior models and shows mild support for eccentricity in five catalog events plus comparable unbound fits for three high-mass events.","context_count":1,"top_context_role":"baseline","top_context_polarity":"baseline","context_text":"cles in band, this event has been identified as the least ambiguous eccentric BBH candidate in GWTC-3 [95]: it is unaffected by data-quality issues, and its moderate mass (Msrc ≈42M ⊙) makes the eccentricity-precession degeneracy less severe. We find log 10 BEAS QCAS ≈1.0 and log 10 BEAS QCP ≈1.13, consistent with the eccentric- ity measurements reported in Refs. [75, 78, 82]. •GW200105 162426. This NSBH event (M src ≈10M ⊙, ρN mf ≈14) shows modest support for eccentricity with log10 BEAS QCAS ≈0.85 and log 10 BEAS QCP ≈0.67, broadly consistent with the findings of Refs. [80, 81, 83, 84]. The event was originally identified with moderate sig- nificance by matched-filter searches that employ non- eccentric templates; its significance increases slightly"},{"citing_arxiv_id":"2605.28715","ref_index":110,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Accurate waveforms for generic planar-orbit binary black holes: The multipolar effective-one-body model SEOBNRv6EHM","primary_cat":"gr-qc","submitted_at":"2026-05-27T16:38:09+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"SEOBNRv6EHM is a multipolar EOB model for eccentric planar-orbit BBHs calibrated to NR simulations, showing low waveform mismatches up to eccentricity 0.9.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"compared to the QC precessing-spin hypothesis, thus point- ing toward the known degeneracy between eccentricity and spin precession [83, 84, 104-106]; 3) GW200208 222617, associated with an eccentric BBH signal by several stud- ies [100, 101, 107-109], but with high false alarm rate; 4) GW190521 030229, for which some studies find evi- dence supporting eccentric [110, 111] or dynamical-capture [112, 113] BBH hypotheses, while others find no conclusive evidence [100, 114, 115]; and 5) GW200105 162426, a signal from a neutron-star-black-hole (NSBH) binary with evidence arXiv:2605.28715v1 [gr-qc] 27 May 2026 2 for eccentricity [116-119], for which there is a contrasting set of results reported by different follow-up analyses [120-123]."},{"citing_arxiv_id":"2605.21640","ref_index":94,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Gravitational Wave Hyperbolic Catalog: Reanalyzing High-Mass Gravitational Wave Signals Using Hyperbolic Waveforms","primary_cat":"gr-qc","submitted_at":"2026-05-20T18:51:46+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":4.0,"formal_verification":"none","one_line_summary":"Reanalysis finds GW190521 prefers hyperbolic waveforms over quasi-circular precessing ones with ln Bayes factor 3.71, while other high-mass events and GW231123 favor the latter; mock signals indicate distinguishability challenges for high-mass precessing cases.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2605.18742","ref_index":17,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"A universal framework to identify eccentric binary mergers: GW200105 case study","primary_cat":"astro-ph.HE","submitted_at":"2026-05-18T17:58:22+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"A reference-frequency-independent detection statistic for eccentric binary mergers is introduced and applied to GW200105, yielding ln B ≤ 0.9 in favor of the eccentric aligned-spin model over the quasi-circular precessing model.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2605.12818","ref_index":25,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Assessing the imprint of eccentricity in GW signatures using two independent waveform models","primary_cat":"astro-ph.HE","submitted_at":"2026-05-12T23:23:08+00:00","verdict":"CONDITIONAL","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"Dual-model analysis of 162 GW sources disfavors eccentricity for most events but finds potential evidence in GW200129, GW231001, and GW231123.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"eccentricity feature in the rangee∈[0.5,0.8], which is likely pertaining to a waveform systematic for a few high mass systems in O3 that had an eccentricity prior limit extending to 0.9. Similar behavior is observed in O4 events where there is a peak in the eccentricity distri- bution approaching the upper prior limit ranging from e∈[0.3,0.5]. In Ref. [25], regardless of reference fre- quency, a waveform degeneracy is observed at high ec- centricities for high total detector-frame mass systems which is consistent with our interpretation of this wave- form systematic. To summarize, our parameter infer- ences are quite consistent with one another and with previously published work, while inconsistencies arise in"},{"citing_arxiv_id":"2604.15431","ref_index":99,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Highly eccentric non-spinning binary black hole mergers: quadrupolar post-merger waveforms","primary_cat":"gr-qc","submitted_at":"2026-04-16T18:00:02+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"Polynomial models for the (2,2) post-merger waveform amplitudes of eccentric non-spinning binary black holes are constructed from numerical-relativity data as functions of symmetric mass ratio and two merger-time dynamical parameters.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"D103, 064022 (2021), arXiv:2101.11798 [gr- qc]. [96] X. Liu, Z. Cao, and L. Shao, Int. J. Mod. Phys. D32, 2350015 (2023), arXiv:2306.15277 [gr-qc]. [97] A. Gamboaet al., Phys. Rev. D112, 044038 (2025), arXiv:2412.12823 [gr-qc]. [98] M. d. L. Planas, A. Ramos-Buades, C. Garc'ia- Quir' os, H. Estell' es, S. Husa, and M. Haney, (2025), arXiv:2503.13062 [gr-qc]. [99] H. L. Iglesiaset al., Astrophys. J.972, 65 (2024), arXiv:2208.01766 [gr-qc]. [100] A. Bonino, R. Gamba, P. Schmidt, A. Nagar, G. Pratten, M. Breschi, P. Rettegno, and S. Bernuzzi, Phys. Rev. D 107, 064024 (2023), arXiv:2207.10474 [gr-qc]. [101] T. A. Clarke, I. M. Romero-Shaw, P. D. Lasky, and E. Thrane, Mon. Not. Roy. Astron. Soc.517, 3778 (2022),"},{"citing_arxiv_id":"2602.11030","ref_index":40,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Population Properties of Binary Black Holes with Eccentricity","primary_cat":"astro-ph.HE","submitted_at":"2026-02-11T16:55:29+00:00","verdict":"CONDITIONAL","verdict_confidence":"LOW","novelty_score":8.0,"formal_verification":"none","one_line_summary":"First joint population inference on binary black hole eccentricity from GWTC-4 bounds the eccentric branching ratio below 5% at 90% confidence, with results consistent with quasi-circular models but highly model-dependent.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2507.22862","ref_index":46,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Parameter Estimation with Targeted Eccentric Numerical-Relativity Simulations for GW200208_22 and GW190620","primary_cat":"gr-qc","submitted_at":"2025-07-30T17:38:27+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"Bayesian parameter estimation with targeted eccentric numerical-relativity waveforms yields eccentricity estimates of e20 ≈ 0.2 for GW200208_22 and e10 ≈ 0.19 for GW190620, reinforcing the eccentric hypothesis.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2412.20664","ref_index":44,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Enhancing Early Detection and Localization of Gravitational Waves via Eccentricity-Induced Higher Harmonic Modes with 2G Detector Networks","primary_cat":"gr-qc","submitted_at":"2024-12-30T02:47:07+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Eccentricity-induced higher harmonics allow binary neutron star gravitational wave signals to reach detection thresholds and achieve useful localization several minutes earlier in 2G detector networks than circular signals.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2404.14286","ref_index":23,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Evidence for eccentricity in the population of binary black holes observed by LIGO-Virgo-KAGRA","primary_cat":"gr-qc","submitted_at":"2024-04-22T15:37:08+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Bayesian inference on LVK O1-O3 events with eccentric aligned-spin waveforms yields log10 Bayes factors of 1.77-4.75 favoring eccentricity for GW200129, GW190701 and GW200208_22, and >99.5% probability that at least one of 57 events is eccentric under an astrophysically motivated rate prior.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"this event, as was done in [206]. Given the nature of DINGO, marginalizing over different glitch realizations is straightfor- ward. We also find signs of eccentricity in GW200208 22. This has been reported previously in Ref. [20]. We see mild sup- port for eccentricity in GW190620, which has been flagged as potentially eccentric first in Ref. [20], and then in Ref. [23]. We do not observe evidence of eccentricity in GW190521 in the region e10Hz < 0.5. This is in contention with Refs. [21, 110]. However, [23] which uses the TEOBResumS-DALI waveform model [149-151], finds similar results. It is at present unclear what the cause of this discrepancy is, and fur- ther work in this direction is needed. Note, our result is not"}],"limit":50,"offset":0}