{"total":12,"items":[{"citing_arxiv_id":"2606.28156","ref_index":22,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Joint inference of line-of-sight acceleration and orbital eccentricity in neutron-star--black-hole binaries","primary_cat":"gr-qc","submitted_at":"2026-06-26T14:52:41+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"All five NSBH events are consistent with zero line-of-sight acceleration; the joint posterior for GW200105_162426 disfavors both zero LOSA and zero eccentricity at 90% credibility.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2606.10823","ref_index":120,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"AGN-driven BBH mergers: Black hole populations and hierarchical growth across the AGN parameter space","primary_cat":"astro-ph.GA","submitted_at":"2026-06-09T13:04:12+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"Semi-analytical models show AGN disks produce repeated BBH mergers with a high-mass tail beyond the pair-instability gap, more efficiently at low viscosity, with spin and mass-ratio signatures that can match events like GW190521.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2605.28716","ref_index":25,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"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":"background","top_context_polarity":"background","context_text":"Formation of Eccentric Compact Binary Inspirals and the Role of Gravitational Wave Emission in Binary-Single Stellar Encounters,Astrophys. J.784(2014) 71 [1308.2964]. [24] M. Zevin, J. Samsing, C. Rodriguez, C.-J. Haster and E. Ramirez-Ruiz,Eccentric Black Hole Mergers in Dense Star Clusters: The Role of Binary-Binary Encounters, Astrophys. J.871(2019) 91 [1810.00901]. [25] D. Chattopadhyay, J. Stegmann, F. Antonini, J. Barber and I. M. Romero-Shaw,Double black hole mergers in nuclear star clusters: eccentricities, spins, masses, and the growth of massive seeds,Mon. Not. Roy. Astron. Soc.526(2023) 4908 [2308.10884]. [26] H. von Zeipel,Sur l'application des s' eries de M. Lindstedt ` a l'' etude du mouvement des com` etes p' eriodiques,"},{"citing_arxiv_id":"2605.28715","ref_index":48,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"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":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2605.20320","ref_index":36,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"The third wheel: ringdown and lensing of triple systems","primary_cat":"gr-qc","submitted_at":"2026-05-19T18:00:00+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Numerical relativity simulations of triple black hole systems reveal redshift effects and gravitational lensing in ringdown signals from head-on mergers, with no additional black hole formation from amplified waves.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"Vicky Kalogera, and Frederic A. Rasio, \"Black hole mergers and blue stragglers from hierarchical triples formed in globular clusters,\" Astrophys. J.816, 65 (2016), arXiv:1509.05080 [astro-ph.GA]. [35] Kei-ichiro Kubota, Shun Arai, Hayato Motohashi, and Shinji Mukohyama, \"Spin wave optics for gravita- tional waves lensed by a Kerr black hole,\" (2024), arXiv:2408.03289 [gr-qc]. [36] Martin Pijnenburg, Giulia Cusin, Cyril Pitrou, and Jean-Philippe Uzan, \"Wave optics lensing of gravita- tional waves: Theory and phenomenology of triple sys- tems in the LISA band,\" Phys. Rev. D110, 044054 (2024), arXiv:2404.07186 [gr-qc]. [37] Juno C. L. Chan, Conor Dyson, Matilde Garcia, Jaime Redondo-Yuste, and Luka Vujeva, \"Lensing and wave optics in the strong field of a black hole,\" (2025),"},{"citing_arxiv_id":"2605.12818","ref_index":40,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"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":"Mandel and A. Farmer, Physics Reports955, 1 (2022), arXiv:1806.05820 [astro-ph.HE]. [38] K. Belczynski, D. E. Holz, T. Bulik, and R. O'Shaughnessy, Nature534, 512 (2016), arXiv:1602.04531 [astro-ph.HE]. [39] K. Breivik, C. L. Rodriguez, S. L. Larson, V. Kalogera, and F. A. Rasio, Astrophysical Journal830, L18 (2016), arXiv:1606.09558 [astro-ph.GA]. [40] M. Zevin, J. Samsing, C. Rodriguez, C.-J. Haster, and E. Ramirez-Ruiz, Astrophysical Journal871, 91 (2019), arXiv:1810.00901 [astro-ph.HE]. [41] The LIGO Scientific Collaboration, the Virgo Collabora- tion, B. P. Abbott, R. Abbott, T. D. Abbott, S. Abra- ham, F. Acernese, K. Ackley, C. Adams, V. B. Adya, and et al., Astrophysical Journal900, L13 (2020),"},{"citing_arxiv_id":"2605.05537","ref_index":19,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Implications of the LISA stochastic signal from eccentric stellar mass black hole binaries in vacuum","primary_cat":"gr-qc","submitted_at":"2026-05-07T00:35:22+00:00","verdict":"CONDITIONAL","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"High initial eccentricities in stellar-mass black hole binaries produce a stochastic gravitational wave background distinguishable by LISA from quasi-circular models, enabling upper bounds on eccentricity and separation of environmental effects for dense gas.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"oscillations in hierarchical triples [13, 14], and mergers facilitated by the gaseous disks of active galactic nuclei (AGNs) [15-17]. Crucially, these channels predict dif- ferent orbital properties for the merging binaries, and in ∗ranchen@pmo.ac.cn †rchandra@sissa.it particular different distributions of orbital eccentricity at formation [11, 18]. The Laser Interferometer Space Antenna (LISA) [19], a planned space-based GW observatory operating in the mHz band, will observe sBBHs years to decades before they merge in the LVK band [20]. At these early stages of the inspiral, astrophysical environments can significantly affect the orbital evolution through dynamical friction, hydrodynamic drag, and gas accretion [21, 22]. These effects have been shown to leave detectable imprints on"},{"citing_arxiv_id":"2604.17868","ref_index":27,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Including higher-order modes in a quadrupolar eccentric numerical relativity surrogate using universal eccentric modulation functions","primary_cat":"gr-qc","submitted_at":"2026-04-20T06:28:06+00:00","verdict":"CONDITIONAL","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"The gwNRHME framework constructs a multi-modal non-spinning eccentric gravitational waveform surrogate by modulating quasi-circular models with universal eccentric functions, achieving median mismatches of ~9e-5 against 156 NR waveforms.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"and Michael Zevin, \"Post-Newtonian Dynamics in Dense Star Clusters: Formation, Masses, and Merger Rates of Highly- Eccentric Black Hole Binaries,\" Phys. Rev. D98, 123005 (2018), arXiv:1811.04926 [astro-ph.HE]. [26] Johan Samsing, \"Eccentric Black Hole Mergers Forming in Globular Clusters,\" Phys. Rev. D97, 103014 (2018), arXiv:1711.07452 [astro-ph.HE]. [27] Michael Zevin, Johan Samsing, Carl Rodriguez, Carl-Johan Haster, and Enrico Ramirez-Ruiz, \"Eccentric Black Hole Merg- ers in Dense Star Clusters: The Role of Binary-Binary Encoun- ters,\" Astrophys. J.871, 91 (2019), arXiv:1810.00901 [astro- ph.HE]. [28] Michael Zevin, Isobel M. Romero-Shaw, Kyle Kremer, Eric Thrane, and Paul D. Lasky, \"Implications of Eccentric Obser-"},{"citing_arxiv_id":"2604.15431","ref_index":50,"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":"Antonini, N. Murray, and S. Mikkola, Astrophys. J. 781, 45 (2014), arXiv:1308.3674 [astro-ph.HE]. [48] J. Samsing, Phys. Rev. D97, 103014 (2018), arXiv:1711.07452 [astro-ph.HE]. [49] C. L. Rodriguez, P. Amaro-Seoane, S. Chatterjee, K. Kre- mer, F. A. Rasio, J. Samsing, C. S. Ye, and M. Zevin, Phys. Rev. D98, 123005 (2018), arXiv:1811.04926 [astro- ph.HE]. [50] M. Zevin, J. Samsing, C. Rodriguez, C.-J. Haster, and E. Ramirez-Ruiz, Astrophys. J.871, 91 (2019), arXiv:1810.00901 [astro-ph.HE]. [51] M. Dall'Amico, M. Mapelli, S. Torniamenti, and M. A. Sedda, Astron. Astrophys.683, A186 (2024), arXiv:2303.07421 [astro-ph.HE]. [52] R. Abbottet al.(LIGO Scientific, Virgo), Phys. Rev. Lett.125, 101102 (2020), arXiv:2009."},{"citing_arxiv_id":"2604.11903","ref_index":155,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Post-Newtonian inspiral waveform model for eccentric precessing binaries with higher-order modes and matter effects","primary_cat":"gr-qc","submitted_at":"2026-04-13T18:00:35+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"pyEFPEHM extends prior PN models to include higher-order quasi-circular phasing, generalized precession solutions, and eccentric corrections up to 1PN in selected multipoles for eccentric precessing binaries with matter effects.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"Clusters: Formation, Masses, and Merger Rates of Highly-Eccentric Black Hole Binaries, Phys. Rev. D98, 123005 (2018), arXiv:1811.04926 [astro-ph.HE]. [154] M. Zevin, J. Samsing, C. Rodriguez, C.-J. Haster, and E. Ramirez-Ruiz, Eccentric Black Hole Merg- ers in Dense Star Clusters: The Role of Bi- nary-Binary Encounters, Astrophys. J.871, 91 (2019), arXiv:1810.00901 [astro-ph.HE]. [155] H. Tagawa, Z. Haiman, and B. Kocsis, Formation and Evolution of Compact Object Binaries in AGN Disks, Astrophys. J.898, 25 (2020), arXiv:1912.08218 [astro- ph.GA]. [156] M. A. Sedda, Dissecting the properties of neutron star - black hole mergers originating in dense star clusters, Commun. Phys.3, 43 (2020), arXiv:2003.02279 [astro- ph.GA]. [157] F."},{"citing_arxiv_id":"2404.14286","ref_index":64,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"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":"Within these categories, the former has sub-channels in- cluding common-envelope evolution [39, 43-49], chemically- homogenous evolution [50, 51] and Population III stars [52]. Similarly, the dynamical channel has sub-channels, e.g., bi- naries arising from triple interactions [53-57], von Zeipel- Kozai-Lidov (ZKL) oscillations [58-63], binary-binary inter- actions [64], and binary-single interactions [65, 66]. These possibilities had been proposed in Refs. [67-74], and further investigated in Refs. [75-82] It is unclear what fraction of BBHs arise from each forma- tion channel. Multiple channels may operate simultaneously making the origin of BBHs even harder to pinpoint. But mea- suring eccentricity in a BBH can serve as a reliable indica-"},{"citing_arxiv_id":"1903.04467","ref_index":66,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Tests of General Relativity with the Binary Black Hole Signals from the LIGO-Virgo Catalog GWTC-1","primary_cat":"gr-qc","submitted_at":"2019-03-11T17:43:43+00:00","verdict":"ACCEPT","verdict_confidence":"MODERATE","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Binary black hole signals in GWTC-1 are consistent with general relativity predictions, with an improved graviton mass bound of mg ≤ 4.7 × 10^{-23} eV/c² at 90% credible level.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"New numerical waveforms and anatomy of the signal,\" Phys. Rev. D, 93, 044006 (2016), arXiv:1508.07250 [gr-qc]. [65] M. Hannam, P. Schmidt, A. Boh'e, L. Haegel, S. Husa, F. Ohme, G. Pratten, and M. P ¨urrer, \"Simple Model of Complete Pre- cessing Black-Hole-Binary Gravitational Waveforms,\" Phys. Rev. Lett., 113, 151101 (2014), arXiv:1308.3271 [gr-qc]. [66] A. Taracchini et al., \"E ffective-one-body model for black-hole binaries with generic mass ratios and spins,\" Phys. Rev. D, 89, 061502 (2014), arXiv:1311.2544 [gr-qc]. [67] S. Babak, A. Taracchini, and A. Buonanno, \"Validating the effective-one-body model of spinning, precessing binary black holes against numerical relativity,\" Phys. Rev. D, 95, 024010"}],"limit":50,"offset":0}