Progress in multi-messenger observations and emission models of blazars

The recent hint of correlated γ-ray and neutrino emission from the blazar TXS 0506+056 has renewed interest in blazars as the source of high-energy neutrinos, in which the possible neutrino emission involved hadronic acceleration in the jet of blazars. In this review, we summarize the recent advance...

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Bibliographic Details
Published in:New astronomy reviews 2024-06, Vol.98, p.101693, Article 101693
Main Authors: Cao, Gang, Geng, Xiongfei, Wang, Jiancheng, Yang, Xiongbang
Format: Article
Language:English
Subjects:
Blazars
High energy
Multi-wavelength astronomy
Neutrino astrophysics
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Summary:The recent hint of correlated γ-ray and neutrino emission from the blazar TXS 0506+056 has renewed interest in blazars as the source of high-energy neutrinos, in which the possible neutrino emission involved hadronic acceleration in the jet of blazars. In this review, we summarize the recent advances in the multi-wavelength and neutrino observations of blazars. We focus on the discussion of the current understanding of blazar emission processes in the leptonic and hadronic model. The future multi-messenger observations combining electromagnetic and neutrino measurements will help us to constrain blazar emission models and understand the origins of the high-energy γ-rays and neutrinos.
ISSN:1387-6473
1872-9630
DOI:10.1016/j.newar.2023.101693