See also: Including strange quarks: Including sigma-meson and omega-meson: Observation of gravitational waves coincident with electromagnetic radiation from merging neutron stars: Discussion of models of neutron stars by Skyrmions: C. Adam, Carlos Naya, J. Sanchez-Guillen, R. Vazquez, A. Wereszczynski, BPS Skyrmions as neutron stars, Physics Letters B Volume 742, 6 March 2015, Pages 136-142 (arXiv:1407.3799) C. Adam, Carlos Naya, J. Sanchez-Guillen, R. Vazquez, A. Wereszczynski, Neutron stars...