Электронный каталог

Статья

Plavin, A.V.
Hard X-ray Emission from Blazars Associated with High-Energy Neutrinos / A.V.Plavin, A.A.Starobinsky, [a.o.] // Journal of Cosmology and Astroparticle Physics [Electronic resource]. – 2024. – Vol. 2024, No. 5. – P. 133. – URL: https://doi.org/10.1088/1475-7516/2024/05/133.

Bright blazars were found to be prominent neutrino sources, and a number of IceCube events were associated with them. Evaluating high-energy photon emission of such blazars is crucial for better understanding of the processes and regions where neutrinos are produced. Here, we focus on hard X-ray emission observed by the SRG/ART-XC telescope, by the Swift/BAT imager, and by the INTEGRAL/IBIS telescope. Their energy range ≳10 keV is well-suited for probing photons that potentially participate in neutrino production by interacting with ultrarelativistic protons. We find that neutrino-associated blazars tend to demonstrate remarkably strong X-ray emission compared to other VLBI blazars in the sky. Both neutrinos and hard X-rays are found to come from blazars at cosmological distances z ∼ 1, and are boosted by relativistic beaming that makes it possible to detect them on Earth. Our results suggest that neutrinos are produced within compact blazar jets, with target X-ray photons emitted from accelerated jet regions.



ОИЯИ = ОИЯИ (JINR)2024
Спец.(статьи,препринты) = С 63 - Астрофизика$
Спец.(статьи,препринты) = С 346.1е - Нейтрино в космогонии и астрофизике
Бюллетени = 29/024