Investigating the impact of quasar feedback on the central kiloparsec of galaxies

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• Cristina Ramos Almeida (Instituto de Astrofísica de Canarias)
• Friday 01 September 2023, 11:30-13:00
• Large Martin Ryle Seminar Room, KICC.

If you have a question about this talk, please contact Steven Brereton.

Different modes of AGN feedback are now considered key processes in the evolution of massive galaxies by regulating black hole and galaxy growth. Indeed, a wealth of observational evidence demonstrates that feedback from supermassive black holes impacts the galaxies and the halos they inhabit on a wide range of scales: from the central parsecs to hundreds of kpc. What we are still far from understanding is how AGN feedback couples with the host galaxy, which is what ultimately determines its efficiency. The aim of the QSOFEED project is to answer this question by quantifying the impact of multi-phase quasar-driven outflows and jets on the nuclear regions of galaxies, which have the same dynamical timescales as the AGN -driven outflows and jets. I will present recent results based on high angular resolution data from cutting-edge telescopes including Keck, GTC , and ALMA . We do not find evidence for a significant impact of quasar-driven winds/jets on the total molecular gas reservoirs and star formation rates, but they are undoubtedly modifying the distribution of cold molecular gas and young stellar populations (ages < 100 Myr) in the central kpc of the galaxies.

This talk is part of the Kavli Institute for Cosmology Seminars series.

This talk is included in these lists:

• Combined External Astrophysics Talks DAMTP
• Cosmology, Astrophysics and General Relativity
• Institute of Astronomy Talk Lists
• Kavli Institute for Cosmology Talk Lists
• Large Martin Ryle Seminar Room, KICC

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