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CompOSE Reference Manual

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arxiv 2203.03209 v1 pith:KF3ZOD3T submitted 2022-03-07 astro-ph.HE nucl-th

S. Typel , M. Oertel , T. Klähn , D. Chatterjee , V. Dexheimer , C. Ishizuka , M. Mancini , J. Novak
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H. Pais C. Providencia A. Raduta M. Servillat L. Tolos
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CompOSE (CompStar Online Supernovae Equations of State) is an online repository of equations of state (EoS) for use in nuclear physics and astrophysics, e.g., in the description of compact stars or the simulation of core-collapse supernovae and neutron-star mergers, see http://compose.obspm.fr. The main services, offered via the website, are: a collection of data tables in a flexible and easily extendable data format for different EoS types and related physical quantities with extensive documentation and referencing; software for download to extract and to interpolate these data and to calculate additional quantities; webtools to generate EoS tables that are customized to the needs of the users and to illustrate dependencies of various EoS quantities in graphical form. This manual is an update of previous versions that are available on the CompOSE website, at arXiv:1307.5715 [astro-ph.SR], and that was originally published in the journal "Physics of Particles and Nuclei" with doi:10.1134/S1063779615040061. It contains a detailed description of the service, containing a general introduction as well as instructions for potential contributors and for users. Short versions of the manual for EoS users and providers will also be available as separate publications.

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Cited by 10 Pith papers

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  1. The petit four of color-superconducting phases in proto-neutron star evolution

    nucl-th 2026-07 conditional novelty 6.0 of 10

    Along constant-baryon-number cooling tracks, color-superconducting cores in proto-neutron stars follow four scenarios, with stable cold CSC only in a narrow high-mass band for the chosen EoS.

  2. GRACE: An Open-Source Framework for GPU-Accelerated Numerical Relativity

    gr-qc 2026-07 accept novelty 6.0 of 10

    GRACE is a validated, open-source, Kokkos+p4est GPU-portable framework that evolves ideal GRMHD with constrained transport self-consistently coupled to Z4c Einstein equations on fixed or adaptive meshes.

  3. Locating the QCD critical point with neutron-star observations

    astro-ph.HE 2025-06 conditional novelty 6.0 of 10

    Bayesian analysis of a hybrid holographic EOS with neutron-star constraints locates the QCD critical endpoint at μ≈626 MeV and T≈119 MeV and predicts a strong first-order deconfinement transition at zero temperature.

  4. Building Neutron Stars with the MUSES Calculation Engine

    nucl-th 2025-02 conditional novelty 6.0 of 10

    A new open-source calculation engine produces crust-to-core neutron star equations of state and shows that smooth matching choices change predicted radii and masses by several percent.

  5. The impact of hyperons on neutron star mergers: gravitational waves, mass ejection and black hole formation

    astro-ph.HE 2025-01 conditional novelty 6.0 of 10

    Hyperonic equations of state raise the dominant postmerger gravitational-wave frequency by a few percent and reduce the prompt black hole formation threshold by about 0.05 solar masses.

  6. High-Density Sound Speed and Post-Merger Dynamics

    astro-ph.HE 2026-07 conditional novelty 5.0 of 10

    The slope of the high-density sound-speed curve shifts the post-merger gravitational-wave peak frequency and ejecta mass, and that peak frequency partially correlates with an integrated 'intrinsic tidal response' — bu...

  7. Relativistic Mean Field Approach with Chiral Symmetry Breaking and Quark Confinement in the light of Astrophysical Observations

    nucl-th 2026-07 conditional novelty 5.0 of 10

    RMF-CC models with ωρ coupling better match multi-messenger NS data and LQCD/NEP constraints than the baseline, yet standard RMF remains preferred without core phase transitions, requiring high Ksat ~300 MeV.

  8. Non-Thermal Ionization of Kilonova Ejecta: Observable Impacts

    astro-ph.HE 2025-08 conditional novelty 5.0 of 10

    Ionization by high-energy beta-decay electrons makes kilonova models ionize faster-moving ejecta more strongly and improves matches to AT2017gfo light curves and ion detections.

  9. Baryon Number Violation: From Nuclear Matrix Elements to BSM Physics

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    A workshop report that maps the current experimental and theoretical landscape for baryon number violation, from proton decay and neutron-antineutron oscillation searches to the EFT, lattice QCD, and astrophysical con...

  10. The equation of state for neutron stars

    nucl-th 2026-07 unverdicted

    A textbook-style review of the neutron-star equation of state covering the models, experimental and observational constraints, and open questions, with no new result claimed or derived.

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