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Quark core impact on hybrid star cooling
R. Negreiros, V. Dexheimer, S. Schramm
In this paper we investigate the thermal evolution of hybrid stars, objects composed of a quark matter core, enveloped by ordinary hadronic matter. Our purpose is to investigate ho…
Neutron stars with small radii -- the role of delta resonances
Torsten Schürhoff, Stefan Schramm, Veronica Dexheimer
Recent neutron star observations suggest that the masses and radii of neutron stars may be smaller than previously considered, which would disfavor a purely nucleonic equation of s…
Modeling Hybrid Stars with an SU(3) non-linear sigma model
Rodrigo Picanco Negreiros, V. A. Dexheimer, S. Schramm
We study the behavior of hybrid stars using an extended hadronic and quark SU(3) non-linear sigma model. The degrees of freedom change naturally, in this model, from hadrons to qua…