May 13 – 15, 2024
Hotel Zuiderduin
CET timezone

Witnessing radiatively-driven ionised outflows in active galactic nuclei

May 14, 2024, 1:45 PM
15m
Lamoraal-room

Lamoraal-room

Speaker

Anna Juranova

Description

Most active galactic nuclei show outflows of ionised gas, but the driving force behind their acceleration is rarely identified, hindering our understanding of the complex processes at play. Here, we present new insights into the outflows of I Zw 1, a nearby quasar-like galaxy. From multi-wavelength spectra, we identify line-driving as an important mechanism propelling the ionised gas. The rich dataset further allows us to map the properties and the geometrical structure of the outflows and suggest a link to the broad-line region, which appears as a collimated outward flow. This detailed picture of I Zw 1 offers unprecedented insight into the geometry and physical processes within this local, scaled-down version of distant quasars. Understanding these winds is crucial for revealing the role of supermassive black holes in shaping the chemical and structural evolution of the Universe.

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