Published May 12, 2025
| Version v1
Dataset
Open
Data release for "Unified nonparametric equation-of-state inference from the neutron-star crust to perturbative-QCD densities"
Creators
-
1.
California Institute of Technology
- 2. Canadian Institute for Theoretical Astrophysics
-
3.
University of Toronto
- 4. Tsung-Dao Lee Institute
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5.
Shanghai Jiao Tong University
Description
This data release contains the "unified" Gaussian-process (GP) equation-of-state (EOS) draws as described in the work Unified nonparametric equation-of-state inference from the neutron-star crust to perturbative-QCD densities. See also an accompanying GitHub repository.
The
unified_gp_summary.csv file contains the astrophysical weight for each EOS, along with select Tolman-Oppenheimer-Volkoff (TOV) quantities. The astrophysical weights included are derived fromlogweight_Fonseca_J0740: mass measurement for J0740+6620, E. Fonseca et al., Astrophys. J. Lett. 915, L12 (2021), arXiv:2104.00880logweight_Antoniadis_J0348: mass measurement for J0348+0432, J. Antoniadis et al., Science 340, 6131 (2013), arXiv:1304.6875logweight_Choudhury_J0437: mass and radius measurement for J0437–4715, D. Choudhury et al., Astrophys. J. Lett. 971, L20 (2024), arXiv:2407.06789logweight_Miller_J0030: mass and radius measurement for J0030+0451, M. C. Miller et al., Astrophys. J. Lett. 887, L24 (2019), arXiv:1912.05705logweight_Miller_J0740: mass and radius measurement for J0740+6620, M. C. Miller et al., Astrophys. J. Lett. 918, L28 (2021), arXiv:2105.06979logweight_GW170817: mass and tidal deformability measurements for the two binary components of GW170817, B. P. Abbott et al. (LIGO Scientific, Virgo), Phys. Rev. X 9, 011001 (2019), arXiv:1805.11579logweight_GW190425: mass and tidal deformability measurements for the two binary components of GW190425, B. P. Abbott et al. (LIGO Scientific, Virgo), Astrophys. J. Lett. 892, L3 (2020), arXiv:2001.01761
The combined weights are given in the logweight_total column.
The
unified_gp_draws.h5 file contains the EOS data for every entry in the unified_gp_summary.csv table. The top level keys are:eos: contains the pressure/c^2 (g/cm^3), (energy density)/c^2 (g/cm^3), baryon density (g/cm^3), and speed of sound squared (c^2) (note that the TOV quantities inunified_gp_summary.csvare given in the same units).ns: contains the neutron star central baryon density (g/cm^3), mass (solar masses), radius (km), and dimensionless tidal deformability.
Within each of
eos and ns, individual EOS draws are indexed via their ID number (the same as in the "eos" column of unified_gp_summary.csv). See the read_data.ipynb notebook for an example of how to load the EOS data.Files
data_release.zip
Files
(888.6 MB)
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