Heavy Nuclei as Thermal Insulation for Proto-Neutron Stars

Understand

A proto-neutron star (PNS) is a newly formed compact object in a core collapse supernova.

• In this Letter, the neutrino emission from the cooling process of a PNS is investigated using two types of nuclear equation of state (EOS).
• It is found that the neutrino signal is mainly determined by the high-density EOS.
• The neutrino luminosity and mean energy are higher and the cooling time scale is longer for the softer EOS.