### Abstract

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 ±1 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.

Original language | English (US) |
---|---|

Article number | 032801 |

Journal | Physical Review C - Nuclear Physics |

Volume | 93 |

Issue number | 3 |

DOIs | |

State | Published - Mar 31 2016 |

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### ASJC Scopus subject areas

- Nuclear and High Energy Physics

### Cite this

**Model-independent inference of neutron star radii from moment of inertia measurements.** / Raithel, Carolyn A.; Ozel, Feryal; Psaltis, Dimitrios.

Research output: Contribution to journal › Article

*Physical Review C - Nuclear Physics*, vol. 93, no. 3, 032801. https://doi.org/10.1103/PhysRevC.93.032801

}

TY - JOUR

T1 - Model-independent inference of neutron star radii from moment of inertia measurements

AU - Raithel, Carolyn A.

AU - Ozel, Feryal

AU - Psaltis, Dimitrios

PY - 2016/3/31

Y1 - 2016/3/31

N2 - 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 ±1 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.

AB - 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 ±1 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.

UR - http://www.scopus.com/inward/record.url?scp=84963670182&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84963670182&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.93.032801

DO - 10.1103/PhysRevC.93.032801

M3 - Article

AN - SCOPUS:84963670182

VL - 93

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

SN - 0556-2813

IS - 3

M1 - 032801

ER -