Sep 8 – 13, 2019
Europe/Rome timezone
All inquiries about receipts for the payment of the conference fee and/or dinner should be addressed to: a.vriz@fondazionealmamater.it, d.bordignon@fondazionealmamater.it

The UV-X-ray high-resolution view of outflowing winds in AGN: the case of I Zwicky 1

Sep 11, 2019, 3:45 PM
15m

Speaker

Elisa Costantini (SRON, Netherlands Institute for Space Research)

Description

Almost twenty years of X-ray grating observations allowed us to characterize the multi-component ionized gas, outflowing from active galactic nuclei, with unprecedented accuracy. XMM-Newton combined with HST have been key in unveiling the secrets of outflowing winds.
Here I will show the results of our most recent multi-wavelength campaign on the narrow line Seyfert 1 IZw1 (230 ks with XMM and 6 orbits of HST time). The simultaneous observation shows a surprising UV-X warm absorber behaviour as well as clearly pointing to a line-driven wind launching mechanism of the plasma (Silva, Costantini et al. 2018). I will show how the observational elements of this and of previous observations clearly challenge the classical view of a conical-shaped outflow in ionization equilibrium. The observational evidences indeed strongly favour episodes of gas ejection, possibly from the accretion disk.

Affiliation SRON Netherlands Institute for Space Research
Topic Active Galactic Nuclei: accretion physics and evolution across cosmic time

Primary authors

Elisa Costantini (SRON, Netherlands Institute for Space Research) Dr Catia Silva (SRON Netherlands Institute for Space Research)

Presentation materials