Description
Chair: (TBD)
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Jenni Jormanainen (University of Turku)27/05/2026, 16:45Oral
Blazars and radio galaxies are famously known to be variable sources across the entire electromagnetic spectrum due to the rather close alignment of their jet with our line of sight and relativistic jet speeds. In the very high-energy (E > 100 GeV) gamma rays, the fastest flares reach hour-to-minute timescales that cannot be explained by the typical shock acceleration scenario. Magnetic...
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Mikael Turkki (FINCA, University of Turku)27/05/2026, 17:00Oral
Magnetic fields are known to be involved in the launching of relativistic jets from supermassive black holes. While there is lack of knowledge on the precise jet launching mechanisms, both observations and simulations have recently provided us new information on the expected magnetic field structure at the jet launching region. Our work focuses on the polarization observations in the...
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Joonas Suortti (Aalto University)27/05/2026, 17:15Oral
The acceleration of relativistic jets launched by active galactic nuclei (AGN) is expected to be driven by magnetic fields. However, the exact acceleration mechanism is still uncertain, with several magnetic jet acceleration models having been proposed. In order to potentially constrain such models, measuring the magnetic field strength near the base of AGN jets is essential. With...
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303. Resolving a nuclear disk and molecular outflows in the compact obscured nucleus IRAS 17578-0400Olena Torbaniuk (Space, Earth and Environment Department, Chalmers University of Technology, Gothenburg, Sweden)27/05/2026, 17:30Oral
Compact obscured nuclei (CONs) represent one of the most extreme and least understood phases of nuclear activity in nearby luminous infrared galaxies. Powered by either deeply buried active galactic nuclei or extremely compact starbursts, these systems provide a unique laboratory for studying the simultaneous onset of nuclear fueling and feedback during rapid galaxy evolution. Their high...
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Milda Valytė27/05/2026, 17:45Oral
AGN-driven galactic outflows are a central ingredient of galaxy evolution models, yet quantitative comparisons between simulations and observations remain challenging because key observables - most notably the mass outflow rate - are not uniquely defined. In this project, we investigate how inferred relationships between outflow properties and host-galaxy/AGN characteristics depend on the...
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Mrs Maria Stone (University of Turku)27/05/2026, 18:00Oral
For low-redshift quasars, growing observational evidence supports secular processes and minor mergers as the dominant mechanisms for nuclear triggering. We present results from a recently accepted paper based on the GAMA spectroscopic survey, in which we investigate the star formation histories of quasar host galaxies using SED fitting. We also present preliminary results from a companion...
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