Contribution Poster (A0 portrait)
Truncation of AGN jets by their interaction with an stellar cluster
We study the effects of interaction of jets in Active Galactic Nuclei when they encounter stellar clusters passing across the inner jet. The interaction provides a scenario to address non–thermal processes. In jet–star interactions a double bow–shock structure is formed where particles get accelerated via diffusive mechanism. Individual encounters have a limited effect, however, dense clusters of massive stars can truncate the jet as the cluster crosses the jet line near the jet launching region. A bow shock is formed by the interaction of the cluster collective wind with the jet. Much of the jet kinetic energy density is transferred to the shock and becomes available to accelerate particles. The interaction of jets with clusters of massive stars is a promising scenario to explain the gamma ray emission from radiogalaxy jets.