The extension of the cosmic-ray spectrum beyond 1 petaelectronvolt (PeV; 1015
electronvolts) indicates the existence of the so-called PeVatrons—cosmic-ray factories that …

Pulsars are factories of relativistic electrons and positrons that propagate away from the
pulsar, eventually permeating our Galaxy. The acceleration and propagation of these cosmic …

Ultra-high-energy (UHE,> 0.1 PeV) γ-ray astronomy is rapidly evolving into an expanding
branch of γ-ray astronomy with the surprising discovery of 12 PeVatrons and the detection of …

The diffuse Galactic γ-ray emission, mainly produced via interactions between cosmic rays
and the interstellar medium and/or radiation field, is a very important probe of the …

We present a new catalog of TeV gamma-ray sources using 1523 days of data from the High-
Altitude Water Cherenkov (HAWC) Observatory. The catalog represents the most sensitive …

We report the discovery of an extended very-high-energy (VHE) gamma-ray source around
the location of the middle-aged (207.8 kyr) pulsar PSR J 0622+ 3749 with the Large High …

We present the first catalog of very-high-energy and ultra-high-energy gamma-ray sources
detected by the Large High Altitude Air Shower Observatory. The catalog was compiled …

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 …

Microquasars are laboratories for the study of jets of relativistic particles produced by
accretion onto a spinning black hole. Microquasars are near enough to allow detailed …

Weakly interacting massive particles (WIMPs) have long reigned as one of the leading
classes of dark matter candidates. The observed dark matter abundance can be naturally …