A new model for the Warm Absorber in NGC 3783: a single medium in total pressure equilibrium

  title={A new model for the Warm Absorber in NGC 3783: a single medium in total pressure equilibrium},
  author={Anabela C. Gonçalves and Suzy Collin and A-M. Dumont and Martine Mouchet and Agata R{\'o}żańska and L. Chevallier and Royal Observatory and France Astronomical Observatory and Portugal APCParis 7 University and France Camk and Poland},
  journal={Astronomy and Astrophysics},
Context. Many active galactic nuclei exhibit X-ray features typical of the highly ionized gas called “Warm Absorber” (WA). Such a material appears to be stratified, displaying zones of di fferent density, temperature, and ionization. In this paper, we investigate the possibility of modelling the WA gas in NGC 3783 as a single medium in total pressure equilibrium. Aims. Our goal is to demonstrate that the WA can be well modelled assuming constant total pressure, in contrast to the current de… 

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