NebulaPy Database 1.0.0: Cooling Rates and CIE Ion Fractions

This release contains two NebulaPy-produced components: 1. Ion cooling-rate tables in `chianti_cooling_rates/`.2. Temperature-dependent collisional-ionization-equilibrium ion fractions in `cie_ion_fractions.txt`. Cooling-rate tables The cooling-rate collection contains one plain-text table per ion togetherwith documentation describing the temperature and electron-density grids. The tables were generated with ChiantiPy for the NEMO v1.0 ion networkimplemented in PION v3.0. They include bremsstrahlung, line-radiation andtwo-photon contributions. This dataset does not contain or redistribute the CHIANTI atomic database.Scientific citations to CHIANTI and ChiantiPy remain appropriate asmethodological attribution. CIE ion fractions `cie_ion_fractions.txt` contains temperature-dependent, dimensionless ionfractions under collisional ionization equilibrium. For each element, the ionfractions are normalized to sum to one. The table was generated using the NEMO v1 framework coupled to the PION MHDcode. Distribution and validation Each component is distributed independently in TAR and ZIP formats: chianti_cooling_rates.tar chianti_cooling_rates.zip cie_ion_fractions.tar cie_ion_fractions.zip Every archive extracts beneath the versioned directory`nebulapy-db-1.0.0/` and includes: a VERSION marker a component-specific manifest provenance and licensing information SHA-256 checksums for file-integrity validation. The separate component archives can be extracted into the same versioneddatabase directory without metadata conflicts. ATLAS, PoWR and CMFGEN stellar-atmosphere files are not included in thisZenodo release. Supported external stellar-atmosphere data are downloadedseparately by NebulaPy from their respective providers. Compatibility NebulaPy >=2.0.0.beta,<3.0.0 Project links Repository: https://github.com/NebulaPy/NebulaPy Documentation: https://nebulapy.github.io/NebulaPy/ Scientific reference Mathew, A., Mackey, J., Celeste, M., Haworth, T. J., & Mellema, G. (2025),Astronomy & Astrophysics, 695, A73. https://doi.org/10.1051/0004-6361/202452373