Ground-based γ-ray astronomy, which provides access to the TeV energy range, is a young
and rapidly develo** discipline. Recent discoveries in this waveband have important …

The extragalactic background light (EBL) is one of the fundamental observational quantities
in cosmology. All energy releases from resolved and unresolved extragalactic sources, and …

The extragalactic background light (EBL) is of fundamental importance both for
understanding the entire process of galaxy evolution and for γ-ray astronomy, but the overall …

Attenuation of high-energy gamma-rays by pair production with ultraviolet, optical and
infrared (IR) extragalactic background light (EBL) photons provides a link between the …

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 …

This catalog summarizes 117 high-confidence⩾ 0. 1 GeV gamma-ray pulsar detections
using three years of data acquired by the Large Area Telescope (LAT) on the Fermi satellite …

We reconsider the emission properties of BL Lac objects emitting in the high-energy γ-ray
band, by exploiting the information in the MeV–GeV band obtained by the Large Area …

Several extensions of the standard model and, in particular, superstring theories suggest the
existence<? format?> of axionlike particles (ALPs), which are very light spin-zero bosons …

We extend a method for modeling synchrotron and synchrotron self-Compton radiations in
blazar jets to include external Compton (EC) processes. The basic model assumption is that …

Axionlike particles (ALPs) are predicted to couple with photons in the presence of magnetic
fields. This effect may lead to a significant change in the observed spectra of gamma-ray …