Hybrid neutron-star equations of state from an instantaneous nonlocal chiral quark model

This dataset contains 827 tabulated hybrid equations of state (EOS) for cold, beta-equilibratedneutron-star matter. Each table combines the DD2 relativistic density-functional hadronic EOS with acolour-superconducting quark-matter phase described by an instantaneous nonlocal chiral quark modelin the 2SC channel, joined by a Maxwell construction. The tables span the full two-dimensional gridof the dimensionless diquark coupling eta_D (1.00 to 1.19) and vector coupling eta_V (0.40 to 0.99)scanned in the Bayesian analysis of Ayriyan et al., Universe 11 (2025) 141, and constitute thenumerical input layer underlying that analysis. Each EOS table is tab-delimited plain text with four columns: baryon chemical potential (MeV),pressure (MeV/fm^3), baryon number density (1/fm^3) and energy density (MeV/fm^3). Full documentation, including the column tables and the parameter-grid coverage is in README.md. Licence The research data in this archive are made available under the Creative Commons Attribution 4.0 International licence (CC BY 4.0). See <https://creativecommons.org/licenses/by/4.0/>.Users may share and adapt the data for any purpose, including commercial use, provided that appropriate credit is given, a link to the licence is included, and any changes are indicated. Funding This research is part of the project No. 2021/43/P/ST2/03319 co-funded by the National ScienceCentre and the European Union Framework Programme for Research and Innovation Horizon 2020 under theMarie Skłodowska-Curie grant agreement No. 945339. For the purpose of Open Access, the author hasapplied a CC-BY public copyright licence to any Author Accepted Manuscript (AAM) version arising fromthis submission. The related article additionally acknowledges support from CONICET (Argentina) under grantsPIP 2022-2024 GI-11220210100150CO and X960, and from ANPCyT (Argentina) under grants PICT19-00792and PICT22-03-00799.