Neutrino Signatures From Young Neutron Stars
Luke F. Roberts, Sanjay Reddy

TL;DR
This paper reviews the physics of neutrino emission from proto-neutron stars after supernovae, discussing how neutrino signals reveal dense matter properties and influence nucleosynthesis, with insights from SN 1987A and future detection prospects.
Contribution
It provides a comprehensive review of PNS cooling physics, including the impact of nuclear EOS, neutrino opacities, and convection on neutrino signals, and discusses implications for future observations.
Findings
Neutrino signals encode information about dense matter properties.
SN 1987A neutrino data provided valuable insights into PNS physics.
Future detections can further elucidate neutron star formation and nucleosynthesis.
Abstract
After a successful core collapse supernova (CCSN) explosion, a hot dense proto-neutron star (PNS) is left as a remnant. Over a time of twenty or so seconds, this PNS emits the majority of the neutrinos that come from the CCSN, contracts, and loses most of its lepton number. This is the process by which all neutron stars in our galaxy are likely born. The emitted neutrinos were detected from SN 1987A and they will be detected in much greater numbers from any future galactic CCSN. These detections can provide a direct window into the properties of the dense matter encountered inside neutron stars, and they can affect nucleosynthesis in the mate- rial ejected during the CCSN. In this chapter, we review the basic physics of PNS cooling, including the basic equations of PNS structure and neutrino diffusion in dense matter. We then discuss how the nuclear equation of state, neutrino opacities…
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