Dense Matter in Neutron Star: Lessons from GW170817

Understand

Neutron star merger event GW170817 sets an upper limit on the maximum mass of non-rotating neutron stars.

• Consequently, this event puts strong constraints on the dense matter equation of state (EoS).
• A comparative study of dense matter equations of state (EoSs) is presented here.
• It is found that the $\Lambda$ hyperon EoS BHB$\Lambda\phi$ (Banik, Hempel $\&$ Bandyopadhyay 2014) constructed within the framework of the density dependent hadron field theory is favoured.