The gamma-ray window to intergalactic magnetism

R Alves Batista, A Saveliev - Universe, 2021 - mdpi.com
One of the most promising ways to probe intergalactic magnetic fields (IGMFs) is through
gamma rays produced in electromagnetic cascades initiated by high-energy gamma rays or …

Progress in unveiling extreme particle acceleration in persistent astrophysical jets

J Biteau, E Prandini, L Costamante, M Lemoine… - Nature …, 2020 - nature.com
The most powerful persistent accelerators in the Universe are jetted active galaxies. Blazars,
galaxies whose jets are directed towards Earth, dominate the extragalactic γ-ray sky. Still …

First detection of photons with energy beyond 100 TeV from an astrophysical source

M Amenomori, YW Bao, XJ Bi, D Chen, TL Chen… - Physical review …, 2019 - APS
We report on the highest energy photons from the Crab Nebula observed by the Tibet air
shower array with the underground water-Cherenkov-type muon detector array. Based on …

A lower bound on intergalactic magnetic fields from time variability of 1ES 0229+ 200 from MAGIC and Fermi/LAT observations

VA Acciari, I Agudo, T Aniello, S Ansoldi… - Astronomy & …, 2023 - aanda.org
Context. Extended and delayed emission around distant TeV sources induced by the effects
of propagation of γ ray s through the intergalactic medium can be used for the measurement …

[HTML][HTML] ASTRI Mini-Array core science at the Observatorio del Teide

S Vercellone, C Bigongiari, A Burtovoi… - Journal of High Energy …, 2022 - Elsevier
Abstract The ASTRI (Astrofisica con Specchi a Tecnologia Replicante Italiana) Project led by
the Italian National Institute for Astrophysics (INAF) is develo** and will deploy at the …

Sensitivity of the Cherenkov Telescope Array for probing cosmology and fundamental physics with gamma-ray propagation

H Abdalla, H Abe, F Acero, A Acharyya… - … of Cosmology and …, 2021 - iopscience.iop.org
The Cherenkov Telescope Array (CTA), the new-generation ground-based observatory for γ-
ray astronomy, provides unique capabilities to address significant open questions in …

Constraints on the intergalactic magnetic field using Fermi-LAT and HESS blazar observations

F Aharonian, J Aschersleben, M Backes… - The Astrophysical …, 2023 - iopscience.iop.org
Magnetic fields in galaxies and galaxy clusters are believed to be the result of the
amplification of intergalactic seed fields during the formation of large-scale structures in the …

The search for spatial extension in high-latitude sources detected by the Fermi large area telescope

M Ackermann, M Ajello, L Baldini, J Ballet… - The Astrophysical …, 2018 - iopscience.iop.org
We present a search for spatial extension in high-latitude (>∣∣ b 5) sources in recent
Fermi point source catalogs. The result is the Fermi High-Latitude Extended Sources …

Leptonic and hadronic radiative processes in supermassive-black-hole jets

M Cerruti - Galaxies, 2020 - mdpi.com
Supermassive black holes lying in the center of galaxies can launch relativistic jets of
plasma along their polar axis. The physics of black-hole jets is a very active research topic in …

The NuSTAR view on hard-TeV BL Lacs

L Costamante, G Bonnoli, F Tavecchio… - Monthly Notices of …, 2018 - academic.oup.com
Abstract Hard-TeV BL Lacs are a new type of blazars characterized by a hard intrinsic TeV
spectrum, locating the peak of their gamma-ray emission in the spectral energy distribution …