https://doi.org/10.1140/epja/i2019-12720-8
Regular Article - Theoretical Physics
Strangeons constitute bulk strong matter: Test using GW 170817
1
School of Physics and Engineering, Hubei University of Education, 430205, Wuhan, China
2
Research Center for Astronomy, Hubei University of Education, 430205, Wuhan, China
3
Max-Planck-Institut für Gravitationsphysik, D-14471, Potsdam-Golm, Germany
4
School of Physics, Peking University, 100871, Beijing, China
5
Kavli Institute of Astronomy and Astrophysics, Peking University, 100871, Beijing, China
* e-mail: laixy@pku.edu.cn
Received:
31
October
2018
Accepted:
9
February
2019
Published online:
23
April
2019
The fundamental strong interaction determines the nature of pulsar-like compact stars which are essentially in the form of bulk strong matter. From an observational point of view, it is proposed that bulk strong matter could be composed of strangeons, i.e. quark-clusters with three-light-flavor symmetry of quarks, and therefore pulsar-like compact objects could actually be strangeon stars. The equation of state (EOS) of strangeon stars is described in a Lennard-Jones model for the purpose of constraining the EOS by both the tidal deformability 
of GW 170817 and 
. It is found that the allowed parameter space is quite large as most of the Lennard-Jones EOS models satisfy the tidal deformability constraint by GW 170817. The future GW detections for smaller values of and mass measurement for larger values of will help find a better constraint on the strangeon star model.
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature, 2019
