Axions and other very light axion-like particles appear in many extensions of the Standard
Model, and are leading candidates to compose part or all of the missing matter of the …

We review the possible mechanisms for the generation of cosmological magnetic fields,
discuss their evolution in an expanding Universe filled with the cosmic plasma and provide a …

Names: CTA Consortium (Organization) Title: Science with the Cherenkov Telescope
Array/by The CTA Consortium. Description: New Jersey: World Scientific, 2018.| Includes …

Current Cherenkov telescopes have identified a population of ultra-high-frequency peaked
BL Lac objects (UHBLs), also known as extreme blazars, that exhibit exceptionally hard TeV …

We study high-energy neutrino production in inner jets of radio-loud active galactic nuclei
(AGN), taking into account effects of external photon fields and the blazar sequence. We …

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 …

The Cherenkov Telescope Array (CTA), the new-generation ground-based observatory for γ-
ray astronomy, provides unique capabilities to address significant open questions in …

Context. In addition to its relevant astrophysical and cosmological significance, the
extragalactic background light (EBL) is a fundamental source of opacity for cosmic high …

The light emitted by all galaxies over the history of the Universe produces the extragalactic
background light (EBL) at ultraviolet, optical, and infrared wavelengths. The EBL is a source …

Ground-based observatories have been collecting 0.2–20 TeV gamma-rays from blazars for
about twenty years. These gamma-rays can experience absorption along the line of sight …