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Probing neutrino production in blazars by millimeter VLBI

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arxiv 2307.02267 v1 pith:6PKZNEO6 submitted 2023-07-05 astro-ph.HE astro-ph.GA

Probing neutrino production in blazars by millimeter VLBI

Y. Y. Kovalev , A. V. Plavin , A. B. Pushkarev , S. V. Troitsky This is my paper
classification astro-ph.HE astro-ph.GA
keywords neutrinoblazarsproductionmulti-messengerngehtaccelerationaccretionadvancement
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The advancement of neutrino observatories has sparked a surge in multi-messenger astronomy. Multiple neutrino associations among blazars are reported while neutrino production site is located within their central (sub)parsecs. Yet many questions remain on the nature of those processes. The next generation Event Horizon Telescope (ngEHT) is uniquely positioned for these studies, as its high frequency and resolution can probe both the accretion disk region and the parsec-scale jet. This opens up new opportunities for connecting the two regions and unraveling the proton acceleration and neutrino production in blazars. We outline observational strategies for ngEHT and highlight what it can contribute to the multi-messenger study of blazars.

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Cited by 2 Pith papers

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  1. Active Galactic Nuclei as high-energy neutrino sources

    astro-ph.HE 2026-06 accept novelty 2.5

    AGN (jetted and non-jetted) are viable high-energy neutrino sources, with TXS 0506+056 and NGC 1068 as the only statistically significant associations so far, while gamma-ray blazars contribute only a small fraction o...

  2. Active Galactic Nuclei as high-energy neutrino sources

    astro-ph.HE 2026-06 unverdicted novelty 2.0

    Review summarizing correlations between astrophysical neutrinos and gamma-ray/radio AGN, specific source associations, proposed production mechanisms, and future prospects.