An overview of existing and new nuclear and astrophysical constraints on the equation of state of neutron-rich dense matter

This tool can be used to combine various constraints on the equation of state (EOS) for dense matter. Select the constraints you are interested in. Clicking on the buttons below will then give you the combined posterior and provide the figures for either EOS-derived quantities or show how the estimate for the canonical neutron star radius changes. Dependencies are taken into account automatically.
By clicking on the images, you can switch between the M-R curve and the corresponding pressure-density relation.
You can also choose weights for the individual inputs, so when the log-likelihoods are added, the weight will be used as a coefficient. We emphasize that the weights are for demonstrative purpose only and do not warrant a sound statistical interpretation.

Microscopic Theory

χEFT (Ref)

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pQCD (Ref)

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pQCD* (Ref)

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Microscopic Experiments

CREX (Ref)

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PREX (Ref)

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²⁰⁸Pb dipole (Ref)

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Heavy-Ion Collisions (Ref)

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Astrophysical Limits on the TOV Mass

Black Widow J0952-0607 (Ref)

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Radio timing J1614-2230 (Ref)

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Radio timing J0348+0432 (Ref)

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Radio timing J0740+6620 (Ref)

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Radio timing combined (Ref, Ref, Ref)

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Astrophysical M-R Constraints

NICER J0030+0451 (Ref, Ref)

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NICER J0740+6620 (Ref, Ref)

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NICER J0437-4715 (Ref)

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Burster 4U 1702-429 (Ref)

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HESS J1731-347 (Ref)

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Burster J1808.8-3658 (Ref)

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qLMXBs (Ref)

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Gravitational-Wave and Multimessenger Constraints

GRB 211211A (Ref)

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GW190425 (Ref)

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GW170817 (Ref)

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GW170817 +AT2017gfo (Ref, Ref)

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GW170817 +AT2017gfo +GRB170817A (Ref, Ref, Ref)

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GW170817 postmerger

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GW170817 postmerger Kepler limit

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Prior

General Prior

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