Open issues in neutrino astrophysics

Abstract

Neutrinos of astrophysical origin are messengers produced in stars, in explosive phenomena like core-collapse supernovae, in the accretion disks around black holes, or in the Earth's atmosphere. Their fluxes and spectra encode information on the environments that produce them. Such fluxes are modified in characteristic ways when neutrinos traverse a medium. Here our current understanding of neutrino flavour conversion in media is summarized. The importance of this domain for astrophysical observations is emphasized. Examples are given of the fundamental properties that astrophysical neutrinos have uncovered, or might reveal in the future.

13 pages, 9 figures, manuscript improved, to appear in the Special Issue "Precision experiments and fundamental physics at low energies"

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Cited by in corpus (7)

• Progress and open questions in the physics of neutrino cross sections
• Neutrino-antineutrino correlations in dense anisotropic media
• Neutrino oscillations in accelerated frames
• Prompt directional detection of galactic supernova by combining large liquid scintillator neutrino detectors
• Neutrino electromagnetic interactions: a window to new physics
• Weak Neutral Current Axial Form Factor Using $(\bar{\nu })\nu$-Nucleon Scattering and Lattice QCD Inputs
• Neutrino astrophysics : recent advances and open issues