The Coronal Emission-Line Region in AGNs: A Hubble Space Telescope View

Astronomy and Astrophysics – Astronomy

Scientific paper

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Galaxies: Active, Galaxies: Nuclei, Line: Formation, Galaxies: Kinematics And Dynamics

Scientific paper

We present a study of HST/STIS optical spectra of a sample of ten Seyfert galaxies aimed at analyzing the structure and physical properties of the coronal line region. The high spatial resolution provided by STIS (about 7 pc for the closest objects) allowed us to resolve the coronal line region and obtain key information about the kinematics of the coronal-line gas, measure directly its spatial scale, and study the mechanisms that drive the high-ionization lines.

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