Neutron stars from crust to core within the Quark-meson coupling model
CSSM, Department of Physics, University of Adelaide, SA 5005 Australia
2 Department of Physics (Astro), University of Oxford, OX1 3RH United Kingdom
3 Department of Physics and Astronomy, University of Tennessee, TN 37996 USA
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Published online: 6 April 2020
Recent years continue to be an exciting time for the neutron star physics, providing many new observations and insights to these natural ‘laboratories’ of cold dense matter. To describe them, there are many models on the market but still none that would reproduce all observed and experimental data. The quark-meson coupling model stands out with its natural inclusion of hyperons as dense matter building blocks, and fewer parameters necessary to obtain the nuclear matter equation of state. The latest advances of the QMC model and its application to the neutron star physics will be presented, within which we build the neutron star’s outer crust from finite nuclei up to the neutron drip line. The appearance of different elements and their position in the crust of a neutron star is explored and compared to the predictions of various models, giving the same quality of the results for the QMC model as for the models when the nucleon structure is not taken into account.
© The Authors, published by EDP Sciences, 2020
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