Microscopic calculation of the equation of state of nuclear matter and neutron star structure

S. Gandolfi, A. Y. Illarionov, S. Fantoni, J. C. Miller, F. Pederiva, Kevin Schmidt

Research output: Contribution to journalLetter

56 Scopus citations

Abstract

We present results for neutron star models constructed with a new equation of state for nuclear matter at zero temperature. The ground state is computed using the auxiliary field diffusion Monte Carlo (AFDMC) technique, with nucleons interacting via a semiphenomenological Hamiltonian including a realistic two-body interaction. The effect of many-body forces is included by means of additional density-dependent terms in the Hamiltonian. In this Letter, we compare the properties of the resulting neutron star models with those obtained using other nuclear Hamiltonians, focusing on the relations between mass and radius, and between the gravitational mass and the baryon number.

Original languageEnglish (US)
Pages (from-to)L35-L39
JournalMonthly Notices of the Royal Astronomical Society: Letters
Volume404
Issue number1
DOIs
StatePublished - May 1 2010

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Keywords

  • Equation of state
  • Stars: neutron

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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