Understanding the physical mechanisms that control galaxy formation is a fundamental
challenge in contemporary astrophysics. Recent advances in the field of astrophysical …

We review open questions and prospects for progress in ultrahigh-energy cosmic ray
(UHECR) research, based on a series of discussions that took place during the “The High …

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

Galactic cosmic rays reach energies of at least a few petaelectronvolts (of the order of 1015
electronvolts). This implies that our Galaxy contains petaelectronvolt accelerators …

We present the first catalog of gamma-ray sources emitting above 56 and 100 TeV with data
from the High Altitude Water Cherenkov Observatory, a wide field-of-view observatory …

The identification of the main contributors to the locally observed fluxes of cosmic rays is a
prime objective in the resolution of the long-standing enigma of the source of cosmic rays …

Recurrent novae are repeating thermonuclear explosions in the outer layers of white dwarfs,
due to the accretion of fresh material from a binary companion. The shock generated when …

A critical review of the standard paradigm for the origin of Galactic cosmic rays (CRs) is
presented. Recent measurements of local and far-away CRs reveal unexpected behaviors …

We use two-dimensional and three-dimensional hybrid (kinetic ions–fluid electrons)
simulations to investigate particle acceleration and magnetic field amplification at non …

Abstract One century ago Viktor Hess carried out several balloon flights that led him to
conclude that the penetrating radiation responsible for the discharge of electroscopes was of …