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 …

Magnetic reconnection can power bright, rapid flares originating from the inner
magnetosphere of accreting black holes. We conduct extremely high-resolution (5376× …

We analyze the parsec-scale jet kinematics from 2007 June to 2018 December of a sample
of γ-ray bright blazars monitored roughly monthly with the Very Long Baseline Array (VLBA) …

We describe new implementations of leptonic and hadronic models for the broadband
emission from relativistic jets in active galactic nuclei in a temporary steady state. For the …

In magnetized astrophysical outflows, the dissipation of field energy into particle energy via
magnetic reconnection is often invoked to explain the observed non-thermal signatures. By …

A black hole can launch a powerful relativistic jet after it tidally disrupts a star. If this jet
fortuitously aligns with our line of sight, the overall brightness is Doppler boosted by several …

The recent Fermi observation of GRB 080916C shows that the bright photosphere emission
associated with a putative fireball is missing, which suggests that the central engine likely …

ABSTRACT The Large Area Telescope (LAT) aboard the Fermi Gamma-ray Space
Telescope provides an unprecedented opportunity to study gamma-ray blazars. To …

Ground-based gamma-ray astronomy has had a major breakthrough with the impressive
results obtained using systems of imaging atmospheric Cherenkov telescopes. Ground …