articleThe Astrophysical Journal LettersDec 10, 2019BRONZE OA

PSR J0030+0451 Mass and Radius from NICER Data and Implications for the Properties of Neutron Star Matter

MCM. C. MillerFKF. K. LambAJA. J. DittmannSBS. BogdanovZAZ. Arzoumanian

Joint Space Science Institute · University of Maryland, College Park · +17 more institutions

Indexed inarxivcrossrefdoaj

Abstract

Abstract Neutron stars are not only of astrophysical interest, but are also of great interest to nuclear physicists because their attributes can be used to determine the properties of the dense matter in their cores. One of the most informative approaches for determining the equation of state (EoS) of this dense matter is to measure both a star’s equatorial circumferential radius R e and its gravitational mass M . Here we report estimates of the mass and radius of the isolated 205.53 Hz millisecond pulsar PSR J0030+0451 obtained using a Bayesian inference approach to analyze its energy-dependent thermal X-ray waveform, which was observed using the Neutron Star Interior Composition Explorer ( NICER ). This…

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Authors

21
  • MC
    M. C. MillerCorresponding

    Joint Space Science Institute, University of Maryland, College Park

  • FK
    F. K. Lamb

    University of Illinois Urbana-Champaign

  • AJ
    A. J. Dittmann

    Joint Space Science Institute, University of Maryland, College Park

  • SB
    S. Bogdanov

    Columbia University

  • ZA
    Z. Arzoumanian

    Goddard Space Flight Center

Topics & keywords

Topics
Keywords
  • Millisecond pulsar
  • Neutron star
  • RADIUS
  • Pulsar
  • Stars
  • Nuclear matter
  • Star (game theory)
  • Equation of state
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