Hybrid stars that masquerade as neutron stars Article Swipe

View

Related Concepts

Physics Strange matter Equation of state Nuclear matter Quark star Neutron star Stars Solar mass RADIUS Particle physics Nuclear physics Quark Exotic star Star (game theory) Astrophysics Nucleon Quantum mechanics Computer security Computer science

Mark Alford , Matt Braby , Mark Paris , Sanjay Reddy ·

YOU? · · 2016 · Open Access · · OA: W3105173305

We show that a hybrid (nuclear + quark matter) star can have a mass-radius relationship very similar to that predicted for a star made of purely nucleonic matter. We show this for a generic parameterization of the quark matter equation of state, and also for an MIT bag model, each including a phenomenological correction based on gluonic corrections to the equation of state. We obtain hybrid stars as heavy as 2 M{sub solar} for reasonable values of the bag model parameters. For nuclear matter, we use the equation of state calculated by Akmal, Pandharipande, and Ravenhall using many-body techniques. Both mixed and homogeneous phases of nuclear and quark matter are considered.