Compact Star Properties from an Extended Linear Sigma Model

Compact Star Properties from an Extended Linear Sigma Model

The equation of state provided by effective models of strongly interacting matter should comply with the restrictions imposed by current astrophysical observations of compact stars. Using the equation of state given by the (axial-)vector meson extended linear sigma model, we determine the mass&#...

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Bibliographic Details
Main Authors: János Takátsy, Péter Kovács, Zsolt Szép, György Wolf
Format: Article
Language:English
Published: MDPI AG 2019-07-01
Series:Universe
Subjects:
dense baryonic matter
TOV equations
mass–radius relations
chiral effective models
Online Access:https://www.mdpi.com/2218-1997/5/7/174
Description
Summary:The equation of state provided by effective models of strongly interacting matter should comply with the restrictions imposed by current astrophysical observations of compact stars. Using the equation of state given by the (axial-)vector meson extended linear sigma model, we determine the mass−radius relation and study whether these restrictions are satisfied under the assumption that most of the star is filled with quark matter. We also compare the mass−radius sequence with those given by the equations of state of somewhat simpler models.
ISSN:2218-1997

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