2016/03/31 by Carolyn A. Raithel, Feryal Özel, Feryal Ozel +1
Earth and Planetary Sciences · Physics and Astronomy · #Artificial intelligence #Astrophysics #Classical mechanics #Computer science #Gamma-ray bursts and supernovae #Geophysics and Gravity Measurements #Inference #Moment (physics) #Moment of inertia #Neutron #Neutron star #Nuclear physics #Physics #Pulsars and Gravitational Waves Research #Star (game theory) #Statistical physics #astro-ph.HE #gr-qc #nucl-th
paper · pdf · doi:10.1103/physrevc.93.032801
Published in Physical Review C, Rapid Communications; Typo corrected in Eq. 5 (results unchanged)
openalex publication_date 2016/03/31 · arxiv created 2016/04/08 · arxiv updated 2016/04/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
A precise moment of inertia measurement for PSR J0737-3039A in the double pulsar system is expected within the next five years. We present here a new method of mapping the anticipated measurement of the moment of inertia directly into the neutron star structure. We determine the maximum and minimum values possible for the moment of inertia of a neutron star of a given radius based on physical stability arguments, assuming knowledge of the equation of state only at densities below the nuclear saturation density. If the equation of state is trusted up to the nuclear saturation density, we find that a measurement of the moment of inertia will place absolute bounds on the radius of PSR J0737-3039A to within \ifmmode±\else\textpm\fi1 km. The resulting combination of moment of inertia, mass, and radius measurements for a single source will allow for new, stringent constraints on the dense-matter equation of state.