3 papers
astro-ph.HE2026
Multimessenger Constraints on Production Sites of High-Energy Neutrinos from NGC 1068
Abhishek Das, Kohta Murase, B. Theodore Zhang
The detection of high-energy neutrino signals from the nearby Seyfert galaxy NGC 1068 provides us with a unique opportunity to explore nonthermal processes near the center of super…
astro-ph.HE2026
Interpreting Swift and NuSTAR Observations of the Low-Luminosity Active Galactic Nucleus NGC 4278 with Radiatively Inefficient Accretion Flows and Implications for Neutrino Emission
Abhishek Das, Qi Feng, Eleanor Young +3
We report the first NuSTAR hard X-ray observations of the low-luminosity active galactic nucleus NGC 4278. The source is clearly detected beyond 10 keV with a hard X-ray spectrum c…
astro-ph.HE2026
Physical origin of very-high-energy gamma rays from the low-luminosity active galactic nucleus NGC 4278 and implications for neutrino observations
Shilong Chen, Abhishek Das, B. Theodore Zhang +3
Relativistic jets in active galactic nuclei (AGNs) are known to accelerate particles to extreme energies, yet the physical origin of very-high-energy (VHE) emission from low-lumino…