Dust in shocks: the missing link in AGN feedback

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• Houda Haidar (Newcastle)
• Friday 23 January 2026, 11:30-12:30
• Ryle Seminar Room, KICC + online.

If you have a question about this talk, please contact Sandro Tacchella.

Shocks are widely thought to be the dominant mechanism for dust destruction in the interstellar medium (ISM). Feedback processes from active galactic nuclei (AGN), such as winds and jets, can generate shocks that create harsh conditions where dust is expected to be destroyed. In this talk, I will present recent JWST observations showing significant dust survival in shock dominated regions where grain destruction should prevail. The processes underlying dust survival in exteme conditions (eg, high temperatures, fast winds) remain poorly understood. To address this, I will present results from hydrodynamical simulations run with the Arepo code to investigate dust survival under thermal sputtering in AGN -driven outflows.

This talk is part of the Galaxies Discussion Group series.

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