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arXiv · 1107.2497

Hybrid stars with the Dyson-Schwinger quark model

H. Chen·M. Baldo·G. F. Burgio·H. -J. Schulze
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Abstract

We study the hadron-quark phase transition in the interior of neutron stars. For the hadronic sector, we use a microscopic equation of state involving nucleons and hyperons derived within the Brueckner-Hartree-Fock many-body theory with realistic two-body and three-body forces. For the description of quark matter, we employ the Dyson-Schwinger approach and compare with the MIT bag model. We calculate the structure of neutron star interiors comprising both phases and find that with the Dyson-Schwinger model, the hadron-quark phase transition takes place only when hyperons are excluded, and that a two-solar-mass hybrid star is possible only if the nucleonic equation of state is stiff enough.

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H. Chen, M. Baldo, G. F. Burgio, H. -J. Schulze. 2011-07-13. Hybrid stars with the Dyson-Schwinger quark model. https://doi.org/10.1103/physrevd.84.105023

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