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Active Galactic Nuclei XVI: A Sea of Discoveries

14–19 Jun 2026
Brindisi
UTC timezone

Session

S2 - Relativistic Jets and Particle Acceleration: Investigating the launching, collimation, and energetic processes within relativistic jets, including their composition and impact

15 Jun 2026, 16:35
Sala Conferenze presso Autorità di Sistema Portuale (Brindisi)

Sala Conferenze presso Autorità di Sistema Portuale

Brindisi

Presentation materials

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  1. 62. (Highlight) The Accretion-Ejection Mechanism in Low-Power Radio AGN
    Ranieri Diego Baldi (Istituto Nazionale di Astrofisica (INAF))
    15/06/2026, 16:35
    Talk

    Low-power radio active galactic nuclei (AGN), with radio luminosities below 10$^{23}$ W Hz$^{-1}$, represent a numerically dominant yet poorly understood population, that is crucial for unveiling the full impact of radio-mode feedback on galaxy evolution. Unlike classical FRI/II sources, these faint AGN typically exhibit compact radio structures and often lack prominent extended jets or lobes,...

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  2. 134. The life cycle of relativistic jets: low-power radio sources in the spotlight
    Monica Orienti (Istituto Nazionale di Astrofisica (INAF))
    15/06/2026, 16:55
    Talk

    Compact symmetric objects (CSOs) are intrinsically compact extragalactic radio sources and are thought to represent the progenitors of classical radio galaxies. Several evolutionary models of the radio emission have been developed so far, but they mainly focus on the evolution of high-power jets. Weak jets are more prone to instabilities than their high-power counterparts, and jet-medium...

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  3. 105. From compact to giant: the lives of radio AGN on the smallest and largest scales
    Kathleen Kelly Lindiwe Charlton (Istituto Nazionale di Astrofisica (INAF))
    15/06/2026, 17:10
    Talk

    Understanding the life cycle of radio emission in active galaxies remains a central challenge in extragalactic astrophysics. In our study, we aim to bridge the compact and giant phases of radio galaxy evolution by investigating the incidence of remnant and restarting activity across different evolutionary stages. In this talk, I will first focus on the first evolutionary stages and present a...

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  4. 97. (Review) Dynamics, dissipation and emission of relativistic jets: new observational clues and theoretical scenarios.
    Fabrizio Tavecchio (Istituto Nazionale di Astrofisica (INAF))
    16/06/2026, 10:00
    Talk

    In recent years our comprehension of the physical processes shaping the dynamics of relativistic jets and their emission has been revitalized by advances in both observational and theoretical tools. On the observational side, new radio and high-energy data, together with measurement of the polarization in the X-ray band by IXPE, provide a growing (albeit not undisputed) support to the scenario...

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  5. 165. A detailed study of the radio-gamma connection in a large sample of 4LAC AGNs
    Alessandro Paggi
    16/06/2026, 10:30
    Talk
  6. 113. Tracing the end of AGN jets: the first large sample of remnant radio galaxies
    Marisa Brienza (Istituto Nazionale di Astrofisica (INAF))
    16/06/2026, 10:45
    Talk

    The active phase of jetted AGN can last several tens or hundreds of Myr, after which the radio jets cease and the source begins to fade. This so-called remnant plasma provides a unique opportunity to constrain jet activity timescales - a key parameter in feedback models - and to study the long-term impact of AGN on their surrounding environment. Historically elusive, these sources are now...

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  7. 117. Modeling of multi-zone Synchrotron polarization of blazars: insights from new data and connection to particle acceleration
    Andrea Tramacere
    16/06/2026, 11:30
    Talk

    I will show that current mm-to-X-ray polarization trends observed during recent IXPE campaigns for high-synchrotron peaked blazars and the ROBOPOL optical envelope observed for Fermi blazars, which relate the fractional polarization to the peak frequency of the synchrotron emission, can be fully accounted for by a purely turbulent, multi-zone model, without requiring correlations between the...

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  8. 167. A FLASH on Blazars: mapping relativistic jets from MHz radio to GeV gamma rays with SKA pathfinders
    Meriem Behiri
    16/06/2026, 11:45
    Talk
  9. 166. Unveiling the Physics of Blazar Emission Through Quasi-Periodic Oscillations Studies
    Alba Rico
    16/06/2026, 12:00
    Talk
  10. 192. (Review) Dynamics, dissipation and emission of relativistic jets: new observational clues and theoretical scenarios
    Fabrizio Tavecchio (Istituto Nazionale di Astrofisica INAF)
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