Neutrinos and the stars

TL;DR

This paper introduces the role of neutrinos in stellar processes, covering their energy-loss effects, detection from the Sun and supernovae, and the implications of neutrino oscillations in dense stellar environments.

Contribution

It provides an accessible overview of neutrino physics in stars, including recent supernova neutrino observations and the potential for future high-statistics measurements.

Findings

Neutrinos are significant energy-loss channels in stars.

Supernova 1987A neutrino measurements confirmed theoretical predictions.

Future neutrino observations could reveal new physics in stellar environments.

Abstract

The role of neutrinos in stars is introduced for students with little prior astrophysical exposure. We begin with neutrinos as an energy-loss channel in ordinary stars and conversely, how stars provide information on neutrinos and possible other low-mass particles. Next we turn to the Sun as a measurable source of neutrinos and other particles. Finally we discuss supernova (SN) neutrinos, the SN 1987A measurements, and the quest for a high-statistics neutrino measurement from the next nearby SN. We also touch on the subject of neutrino oscillations in the high-density SN context.