{"total":10,"items":[{"citing_arxiv_id":"2605.17983","ref_index":31,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Higher-order statistics of the stochastic gravitational wave background from supermassive black hole binaries","primary_cat":"astro-ph.HE","submitted_at":"2026-05-18T07:37:48+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"With a physically motivated z_min cutoff, higher-order moments of the SGWB from SMBH binaries depend on the mass function solely via <M^{10/3}>, giving a variance-to-mean ratio for <M^{10/3}>/<M^{5/3}> and a kurtosis-skewness consistency relation independent of redshift evolution.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2605.05157","ref_index":17,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Are PTA measurements sensitive to gravitational wave non-Gaussianities?","primary_cat":"astro-ph.CO","submitted_at":"2026-05-06T17:28:29+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"PTA statistical tests lose sensitivity to non-Gaussian GW features after decorrelation and cannot distinguish them model-agnostically.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"Croft, S. Burke- Spolaor, and S. R. Taylor, Nature Astron.1, 886 (2017), arXiv:1708.03491 [astro-ph.GA]. [15] M. R. Sah, S. Mukherjee, V. Saeedzadeh, A. Babul, M. Tremmel, and T. R. Quinn, Mon. Not. Roy. Astron. Soc.533, 1568 (2024), arXiv:2404.14508 [astro-ph.CO]. [16] S. R. Taylor and J. R. Gair, Phys. Rev. D88, 084001 (2013), arXiv:1309.3611 [gr-qc]. [17] G. Agazieet al., Astrophys. J. Lett.956, L3 (2023), arXiv:2306.16222 [astro-ph.HE]. [18] Y. Ali-Haïmoud, T. L. Smith, and C. M. F. Mingarelli, Phys. Rev. D103, 042009 (2021), arXiv:2010.13958 [gr- qc]. [19] S. C. Hotinli, M. Kamionkowski, and A. H. Jaffe, Open J. Astrophys.2, 8 (2019), arXiv:1904.05348 [astro-ph.CO]. [20] E. C. Gardiner, L. Z. Kelley, A."},{"citing_arxiv_id":"2605.02172","ref_index":52,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Constraints on Ultralight Scalar and Dark Photon Dark Matter from PPTA-DR3 and EPTA-DR2","primary_cat":"astro-ph.CO","submitted_at":"2026-05-04T03:05:51+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":4.0,"formal_verification":"none","one_line_summary":"Bayesian analysis of PPTA-DR3 and EPTA-DR2 finds no statistically significant ULDM signals and sets 95% CL upper limits on scalar and dark photon dark matter, improving prior bounds in most mass ranges.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"5 yr Data Set: Bayesian Limits on Gravitational Waves from Individual Su- permassive Black Hole Binaries,\" Astrophys. J. Lett.951, L28 (2023), arXiv:2301.03608. [51] G. Agazieet al., \"The NANOGrav 15 yr Data Set: Bayesian Limits on Gravitational Waves from Individual Supermassive Black Hole Binaries,\" Astrophys. J. Lett.951, L50 (2023), arXiv:2306.16222. [52] S.-Y. Zhaoet al., \"Searching for continuous gravitational waves in the parkes pulsar timing array data release 3,\" Astrophys. J. 992, 181 (2025), arXiv:2508.13944. [53] H. Omiya, K. Nomura, and J. Soda, \"Hellings-Downs curve deformed by ultralight vector dark matter,\" Phys. Rev. D108, 104006 (2023), arXiv:2307.12624. [54] L. Marzola, M. Raidal, and F."},{"citing_arxiv_id":"2604.21642","ref_index":6,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Exploring the statistical anisotropy of primordial curvature perturbations with pulsar timing arrays","primary_cat":"gr-qc","submitted_at":"2026-04-23T12:57:10+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"A phenomenological dipole anisotropy in primordial perturbations induces dipolar and quadrupolar anisotropies in SIGW energy density spectra, producing frequency-dependent PTA overlap reduction functions that depend on pulsar sky distribution, but NANOGrav 15-year data yields no significant evidence","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"(EPTA, InPTA:), Astron. Astrophys.678, A50 (2023), arXiv:2306.16214 [astro- ph.HE]. [3] D. J. Reardonet al., Astrophys. J. Lett.951, L6 (2023), arXiv:2306.16215 [astro-ph.HE]. [4] H. Xuet al., Res. Astron. Astrophys.23, 075024 (2023), arXiv:2306.16216 [astro-ph.HE]. [5] G. Agazieet al.(NANOGrav), Astrophys. J. Lett.952, L37 (2023), arXiv:2306.16220 [astro-ph.HE]. [6] G. Agazieet al.(NANOGrav), Astrophys. J. Lett.951, L50 (2023), arXiv:2306.16222 [astro-ph.HE]. [7] G. Agazieet al.(NANOGrav), Astrophys. J. Lett.956, L3 (2023), arXiv:2306.16221 [astro-ph.HE]. [8] J. Antoniadiset al.(EPTA, InPTA), Astron. Astrophys.685, A94 (2024), arXiv:2306.16227 [astro- ph.CO]. [9] G. Agazieet al., Astrophys. J. Lett.978, L29 (2025), arXiv:2408."},{"citing_arxiv_id":"2604.21010","ref_index":75,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Gravity Echoes from Supermassive Black Hole Binaries","primary_cat":"astro-ph.HE","submitted_at":"2026-04-22T19:00:04+00:00","verdict":"UNVERDICTED","verdict_confidence":"UNKNOWN","novelty_score":8.0,"formal_verification":"none","one_line_summary":"Future microhertz detections combined with nanohertz pulsar terms can serve as gravity echoes to measure supermassive black hole binary inspiral rates from hundreds to thousands of years in the past.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"this manuscript, the authors became aware of concurrent work by Criswell et al. (in prep) on pulsar terms in the post-merger regime. SOFTW ARE This work made use ofhasasia[31, 33] for PTA sen- sitivity curve computation and deterministic continuous- wave signal-to-noise ratio estimates,gwent[37] for multi- band detector noise modeling,NumPy[74],SciPy[75], Matplotlib[76], andStreamlit[77] for the inter- active sensitivity visualization. The post-Newtonian evolution library and the multiband sensitivity dash- boardapp.pyare available athttps://github.com/ ChiaraMingarelli/gravity-echoes. A hosted ver- sion of the interactive dashboard is athttps:// gravityecho.streamlit.app. Codes were written and edited with the assistance of Claude Code (Anthropic)."},{"citing_arxiv_id":"2604.20975","ref_index":34,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Probing Supermassive Black Hole Mergers with Pulsar Timing Arrays","primary_cat":"astro-ph.HE","submitted_at":"2026-04-22T18:06:01+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"Pulsar timing arrays can probe supermassive black hole binaries that merged prior to observations via the pulsar term, with SKA potentially detecting a few such zombie binaries at SNR > 3.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"McWilliams, Detecting Eccentric Supermassive Black Hole Binaries with Pulsar Timing Arrays: Resolvable Source Strategies, ApJ817, 70 (2016), arXiv:1505.06208 [gr-qc]. [33] G. Agazieet al., The NANOGrav 15 yr Data Set: Bayesian Limits on Gravitational Waves from Individual Supermassive Black Hole Binaries, ApJ951, L50 (2023), arXiv:2306.16222 [astro-ph.HE]. [34] J. Antoniadiset al., The second data release from the European Pulsar Timing Array. V. Search for continu- ous gravitational wave signals, A&A690, A118 (2024), arXiv:2306.16226 [astro-ph.HE]. [35] M. Pitkin, J. Clark, M. A. Hendry, I. S. Heng, C. Mes- senger, J. Toher, and G. Woan, Is there potential com- plementarity between lisa and pulsar timing?"},{"citing_arxiv_id":"2604.08506","ref_index":56,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"The Heavy Tailed Non-Gaussianity of the Supermassive Black Hole Gravitational Wave Background","primary_cat":"astro-ph.CO","submitted_at":"2026-04-09T17:49:25+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"The gravitational wave background from supermassive black hole binaries has a universal heavy-tailed amplitude distribution with power-law index -4, causing divergent higher moments and dominance of the strongest signals by few loud sources.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2510.01316","ref_index":28,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Expectations for the first supermassive black-hole binary resolved by PTAs II: Milestones for binary characterization","primary_cat":"astro-ph.IM","submitted_at":"2025-10-01T18:00:01+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"Simulations of continuous-wave searches show that PTA data first constrain GW frequency and strain amplitude together, then sky location, with chirp mass and inclination following later for evolving sources, with precision depending on source frequency and sky position.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2510.01317","ref_index":95,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Expectations for the first supermassive black-hole binary resolved by PTAs I: Model efficacy","primary_cat":"astro-ph.IM","submitted_at":"2025-10-01T18:00:01+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"Simulations of PTA data show that a full gravitational-wave signal template achieves the highest Bayes factors and most robust parameter estimation for individual supermassive black hole binaries compared to an Earth-term template and a novel Spike Pixel cross-correlation model.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2506.15496","ref_index":10,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Thermodynamical uncertainties for primordial black holes from cosmological phase transitions","primary_cat":"hep-ph","submitted_at":"2025-06-18T14:34:48+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"A state-of-the-art thermodynamic analysis of supercooled phase transitions yields a universal lower bound β/H_* ≃ 5 and shows that viable PBH dark-matter parameter space in classically conformal gauge-Higgs theories is severely limited by percolation and QCD constraints.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"arXiv:2306.16220 [astro-ph.HE]. [6] A. Afzal et al. (NANOGrav), Astrophys. J. Lett. 951, L11 (2023), arXiv:2306.16219 [astro-ph.HE]. [7] A. D. Johnson et al. (NANOGrav), (2023), arXiv:2306.16223 [astro-ph.HE]. [8] G. Agazie et al. (NANOGrav), (2023), arXiv:2306.16221 [astro-ph.HE]. [9] G. Agazie et al. (NANOGrav), (2023), arXiv:2306.16222 [astro-ph.HE]. [10] J. Antoniadis et al. , (2023), arXiv:2306.16226 [astro- ph.HE]. [11] J. Antoniadis et al. , (2023), 10.1051/0004- 6361/202346841, arXiv:2306.16224 [astro-ph.HE]. [12] J. Antoniadis et al. , (2023), arXiv:2306.16214 [astro- ph.HE]. [13] J. Antoniadis et al. , (2023), arXiv:2306.16225 [astro- ph.HE]. [14] J. Antoniadis et al. , (2023), arXiv:2306.16227 [astro-"}],"limit":50,"offset":0}