2022/04/26 by Markus Boettcher, Boettcher, Markus, Matthew Fu +7 · 2 citations
Physics and Astronomy · #FOS: Physical sciences #High Energy Astrophysical Phenomena (astro-ph.HE) #astro-ph.HE
paper · pdf · doi:10.48550/arxiv.2204.12242
Accepted for the proceedings of the XXVIII Cracow EPIPHANY Conference on Recent Advances in Astroparticle Physics
arxiv created 2022/04/26 · arxiv updated 2022/04/27
This contribution reviews recent advances in the possible identification of blazars as potential sources of at least some of the very-high-energy neutrinos detected by the IceCube neutrino detector at the South Pole. The basic physical requirements for neutrino production and physics constraints that may be drawn from neutrino - blazar associations are reviewed. Several individual cases of possible associations will be discussed in more detail. It is emphasized that due to γγ opacity constraints in efficiently neutrino-producing blazars, an association between X-ray -- soft γ-ray activity and very-high-energy neutrino production is more naturally expected than a connection between neutrino and high-energy/very-high-energy γ-ray activity.