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Hybrid stars that masquerade as neutron stars | | Mark Alford
; Matt Braby
; Mark Paris
; Sanjay Reddy
; | | Date: |
4 Nov 2004 | | Journal: | Astrophys.J. 629 (2005) 969-978 | | Subject: | nucl-th astro-ph hep-ph | | Affiliation: | Washington Univ, St Louis), Matt Braby (Washington Univ, St Louis), Mark Paris (Jefferson National Laboratory), Sanjay Reddy (Los Alamos National Laboratory | | Abstract: | 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_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. | | Source: | arXiv, nucl-th/0411016 | | Services: | Forum | Review | PDF | Favorites | |
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