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 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 …

While astrophysical and cosmological probes provide a remarkably precise and consistent
picture of the quantity and general properties of dark matter, its fundamental nature remains …

This report summarizes the findings of the CF1 Topical Subgroup to Snowmass 2021, which
was focused on particle dark matter. One of the most important scientific goals of the next …

The All-sky Medium Energy Gamma-ray Observatory eXplorer (AMEGO-X) is designed to
identify and characterize gamma rays from extreme explosions and accelerators. The main …

The recent detection of the Geminga pulsar wind nebula (PWN) by HAWC in the multi-TeV
band allows us to infer precious information about the transport of pairs in the immediate …

Observations have shown that spatially extended “TeV halos” are a common (and potentially
generic) feature surrounding young and middle-aged pulsars. However, their morphology is …

The Galactic plane, harboring a diffuse neutrino flux, is a particularly interesting target in
which to study potential cosmic-ray acceleration sites. Recent gamma-ray observations by …