#gamma-ray astronomy
5 papers · 1 filter
Multiwavelength study of non-thermal emission in the Swift J1834.9-0846/W41 region
Manoel F. Sousa, Rita C. Dos Anjos, Vitor de Souza
The paper models the broadband non‑thermal emission from the Swift J1834.9‑0846/W41 region, comparing leptonic and lepto‑hadronic scenarios and finding that a lepto‑hadronic model…
The Origin of Multi-TeV Gamma-rays in LHAASO J0341+5258 via Cosmic Ray Illumination of Molecular Clouds
Abhijit Roy, Alan Sunny, Martina Cardillo +2
The paper investigates the ultra‑high‑energy gamma‑ray emission from LHAASO J0341+5258, modeling it as cosmic‑ray particles accelerated by a past supernova remnant that illuminate…
Towards a joint X-ray and gamma-ray analysis of Pulsar Wind Nebulae with Gammapy
Katharina Egg, Alison M. W. Mitchell
The paper describes how the authors adapt eROSITA X-ray data and H.E.S.S. gamma-ray data for joint analysis of pulsar wind nebulae using the Gammapy Python package.
Stellar flares cannot explain the Galactic 511 keV emission
Saurabh Mittal, Thomas Siegert, Francesca Calore +12
The authors assess whether stellar flares can produce enough positrons to explain the Milky Way’s 511 keV annihilation line and conclude that flares fall short by several orders of…
Stellar-like Galactic center excess challenges particle dark matter
Silvia Manconi, Christopher Eckner, Francesca Calore +1
The authors re‑analyse Fermi‑LAT gamma‑ray data from the Galactic Center using adaptive template fitting and photon‑count statistics to separate a possible dark‑matter signal from…