Hybrid stars that masquerade as neutron stars

  title={Hybrid stars that masquerade as neutron stars},
  author={Mark G. Alford and Matt Braby and Mark Wayne Paris and Sanjay Reddy},
  journal={The Astrophysical Journal},
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☉ for reasonable values of the bag model parameters. For nuclear matter, we use the… Expand

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