Neutron Stars Mass-Radius relationship and Electromagnetic follow-up of Kilonovae

TL;DR

This paper explores how neutron star properties influence kilonova emissions and discusses how future observations can shed light on the dense matter equation of state.

Contribution

It links neutron star mass-radius relationships to kilonova light curves, proposing that multimessenger observations can reveal the nuclear matter equation of state.

Findings

Neutron star equation of state affects kilonova ejecta properties.

Future multimessenger observations can constrain dense matter physics.

Light curve modeling links stellar structure to electromagnetic signals.

Abstract

When two Neutron Stars collide a multi-band electromagnetic emission, known as Kilonova (KN), follows being powered by the radioactive decay of ejecta products. In this contribution we discuss how the equation of state of dense matter, impacts the mass and velocity in the KN ejecta and thus its light curve. Using this information encoded in the stellar mass-radius relationship, we ellaborate on how the future experimental observations in photon channels, in addition to complementary multimessenger probes, could provide a new and more detailed insight into the equation of state of nuclear matter.