University of Cambridge > Talks.cam > Institute of Astronomy Seminars > Connecting X-ray nuclear winds with galaxy-scale ionised outflows in nearby and z~1.5 quasars

Connecting X-ray nuclear winds with galaxy-scale ionised outflows in nearby and z~1.5 quasars

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Outflows driven by active galactic nuclei (AGN) are widely accepted to have a key role in shaping the evolution of the host galaxy, but it is still debated how they are accelerated and propagated on galaxy scales. The most promising ‘engines’ of large-scale winds are the X-ray ultra-fast outflows (UFO), originating in the AGN nuclear region. In this talk I will present the results from two recent studies about the acceleration mechanism of AGN -driven winds, aiming to specifically investigate the link between UFOs and the ionised gas phase of large-scale outflows. I will describe how we have traced the ionised outflows in MUSE and SINFONI observations of two local Type-1 Seyferts and two quasars at z~1.5 (i.e. close to the peak of AGN activity) respectively, and then compare our measurements with the theoretical predictions on wind propagation of models. To put our findings in a broader context, I will finally discuss our results along with those of the small sample of well-studied objects, known to host both UFOs and extended outflows, showing the good agreement of observations with models for almost all objects.

This talk is part of the Institute of Astronomy Seminars series.

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