Ponente
Descripción
Recent Fermi-LAT observations have revealed GeV gamma-ray emission from several radio-quiet Seyfert galaxies, challenging the traditional view that powerful jets are required to produce high-energy gamma rays in active galactic nuclei (AGNs). One such object, GRS 1734-292, is a nearby Seyfert galaxy with empirically weak starburst and jet activity, yet it exhibits a significant gamma-ray signal. In this talk, we present the first comprehensive multiwavelength modeling of GRS 1734−292 and investigate whether its gamma-ray emission can be attributed to an AGN disk wind. We model lepto-hadronic emission from a shocked interstellar medium (ISM) and a shocked wind region created by the interaction between the disk wind and the surrounding ISM. We identify two viable emission scenarios: a hadronic (pp-dominated) scenario and a leptonic (external-Compton-dominated) scenario, both consistent with the observed Fermi-LAT spectrum and multiwavelength constraints. Our results suggest that future observations with CTAO and SWGO could detect TeV emission from a disk wind in this source. Moreover, in the pp-dominated scenario, the disk wind could accelerate cosmic-ray protons beyond 1 EeV, offering new insights into the role of radio-quiet Seyfert galaxies as potential sources of ultrahigh-energy cosmic rays.
