3 papers
astro-ph.HE2025
Constraining the nature of the most extreme Galactic particle accelerator. H.E.S.S. observations of the microquasar V4641 Sgr
A. Acharyya, F. Aharonian, H. Ashkar +131
Microquasars have emerged as promising candidates to explain the cosmic-ray flux at petaelectronvolt energies. LHAASO observations revealed V4641~Sgr as the most extreme example so…
astro-ph.HE2025
Detection of molecular clouds in the PeVatron candidate source LHAASO J03415258 by the Nobeyama 45-m radio telescope
Naomi Tsuji, Shunya Takekawa, Kaya Mori +8
We report a new CO observation survey of LHAASO J03415258 using the Nobeyama Radio Observatory (NRO) 45-m telescope. LHAASO J03415258 is one of the unidentified ultra-high-en…
astro-ph.HE2025
Discovery of a Pulsar Wind Nebula Candidate Associated with the Galactic PeVatron 1LHAASO J0343+5254u
Stephen DiKerby, Shuo Zhang, Tulun Ergin +6
The astronomical origin of the most energetic galactic cosmic rays and gamma rays is still uncertain. X-ray followup of candidate "PeVatrons", systems producing cosmic rays with en…