6 papers · 1 filter
Constraints on Hadronic Emission from Microquasars Detected by LHAASO
V. Vecchiotti, E. Amato, G. Giacinti +2
Recently, the LHAASO collaboration reported ultra-high-energy (UHE) gamma rays from six microquasars. For five of these sources, the emission extends beyond TeV, making micro…
Revisiting the role of the streaming instability for the cosmic-ray spectrum in the GeV to TeV range
Linh Han Thanh, Julien Dörner, Horst Fichtner +2
A complete understanding of the cosmic-ray energy spectrum remains a challenge to theory that must be met by comprehensive modeling efforts. One of these is the subject of the pres…
Massive star clusters in the gamma-ray sky: the role of HII regions
Giada Peron, Giovanni Morlino, Stefano Gabici +1
Massive Star Clusters (SCs) have been proposed as important CR sources, with the potential of explaining the high-energy end of the Galactic cosmic-ray (CR) spectrum, that Supernov…
Gamma-ray halos around pulsars: impact on pulsar wind physics and galactic cosmic ray transport
Elena Amato, Sarah Recchia
TeV haloes are a recently discovered class of very high energy gamma-ray emitters. These sources consist of extended regions of multi-TeV emission, originally observed around the t…
On the correlation between young massive star clusters and gamma-ray unassociated sources
Giada Peron, Giovanni Morlino, Stefano Gabici +3
Star clusters (SCs) are potential cosmic-ray (CR) accelerators and therefore are expected to emit high-energy radiation. However, a clear detection of gamma-ray emission from this…
The hunt of PeVatrons as the origin of the most energetic photons observed in our Galaxy
Emma de Oña Wilhelmi, Rubén López-Coto, Felix Aharonian +4
Ultrarelativistic particles called cosmic rays permeate the Milky Way, propagating through the Galactic turbulent magnetic fields. The mechanisms under which these particles increa…